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Suffolk Summer Demo Day – Thursday 4th June 2026

Staffordshire Summer Demo Day – Monday 22nd June 2026

Limagrain Field Seeds is taking variety trials beyond the plot with the launch of a new UK farmer-led Demonstration Farm network.

The initiative is designed to give growers a clearer, more practical view of how varieties perform in real farming systems, moving away from purely small-plot data and into field-scale reality. Instead of relying solely on trial sites and headline figures, the network will showcase Limagrain genetics under the pressures that shape day-to-day farm decisions, including soil type, rotation, cultivation and input strategy.

Nicolle Hamilton, marketing director at Limagrain, says the aim is to give growers a different perspective. “We want to offer growers a more meaningful way of looking at our varieties, through a farmer lens,” she says. “That means taking them out of controlled conditions and putting them into real farming systems, managed by farmers making commercial decisions every day. While she stresses that formal trials and the AHDB Recommended List remain important benchmarks, she says they do not always reflect the realities of commercial farming.

“This is not about replacing trials, it’s about adding another layer,” she says. “Farmers want to know how varieties establish, how they cope with different soils and how they perform under lower inputs or after cover crops. That is where this approach adds value.”

“It’s about working with farmers, listening to them and learning from them.”

Heather Oldfield, Limagrain cereals product manager, says the strength of the network lies in its farmer-led approach. “This is about genuine collaboration,” she says. She adds the focus is not on identifying a single standout variety, but on understanding where different genetics fit. “There is no perfect variety,” she says.

“Success comes from putting the right variety in the right place. What works on one farm may not work on another. These Demo Farms help us show those differences in a way that is much more relevant to growers.”

The Farmers

The first two farms in the network are based in Suffolk and Staffordshire, offering two contrasting systems. Ryan McCormack hosts the East Anglian site at Dennington Hall Farms, while Rob Atkin farms over in Staffordshire. Together, they provide a broad snapshot of how varieties perform across different soils, climates and management approaches.

Ryan McCormack is testing Limagrain varieties in systems that include reduced tillage, cover crops, and livestock to understand what works best under these conditions

At Dennington Hall Farms, Ryan McCormack is running a highly integrated system combining arable, livestock and environmental management. The farm operates a 12-year rotation and places strong emphasis on soil health, with cover cropping, minimal cultivation and livestock grazing all playing a role. “I’m farming for margin, but also for my soils,” he says. “That means I need varieties that can cope with reduced tillage, cover crops and lower inputs. The only way to understand that is to test them in those conditions.” His trials include comparing multiple varieties under different establishment systems within the same field, giving a clear view of how genetics respond to management.

In contrast, Rob Atkin’s Staffordshire farm operates across a wide range of soil types, from heavy clay to high-organic-matter silt. The mixed farm includes combinable crops alongside beef and sheep, with a growing focus on soil health and cost control. “I still need yield to pay the bills,” he says. “But I want varieties that work on farm, not just in perfect plots. I want to know how they perform under pressure.” For Mr Atkin, the value of the network lies in its honesty. “It’s about seeing what works, what doesn’t and why, that’s far more useful than just looking at figures.”

Rob Atkin believes that seeing varieties in real situations helps him make better decisions

To help growers follow crops through the season, Limagrain Field Seeds is supporting the Demo Farm initiative with on‑farm demonstration days. These demonstration days offer the opportunity to see varieties in the field, discuss results with farmers and Limagrain experts, and gain practical insight into real‑world performance.

Maize has been grown for grain at Cross Hill Farm, near Goole in Yorkshire, for over fifteen years, delivering multiple benefits for the Welburn family’s arable and cattle enterprises.

It is a valuable break crop, particularly complementing winter wheat, and – crimped and clamped – provides an ideal high energy feed for the farm’s 400-head beef finishing enterprise. Crimped maize is also sold off the farm, adding a further revenue stream, and in recent years the crop has also been ensiled for forage.

In total, Chris Welburn and his father Neil farm up to 600ha of rented or contract farmed land, with soil types varying from wind blow sand through to heavy clay. Winter wheat is their main crop, but on some of the neighbouring contract farmed land, where flooding is a common issue, spring cropping predominates, with maize proving to be a reliable and valuable option over many years.

“We’ve grown maize since around 2009, and have always combined it,” says Chris. “On the lighter land, we’ll grow it several years in a row, then swapping in alternative spring crops like sugar beet, carrots or potatoes, whilst on the heavier land it will be part of a more conventional arable rotation, with winter wheat.

“Across all the land we’re farming, we’re growing around 150ha of maize. Over and above the value of the crimped grain, we find it puts quite a bit back into the farm, both in terms of soil fertility and also wider weed control.

“Growing it for grain means a lot of crop residue is going back into the soil, whilst we always precede a maize crop with good applications of cattle manure, which is another good source of organic matter and soil nutrients.  

“Weed control for maize uses different herbicide chemistry, and we find that is helping with the control of blackgrass and other grass weeds in the wheat.”

Variety choice is important, particularly when growing a crop for grain, and Chris’s current ‘banker’ is Limagrain’s Conclusion, a high yielding, high starch option with exceptional cell wall digestibility. He’s also growing the earlier maturing Duke, which alongside high dry matter yields has very low cob moisture content making it particularly well suited for grain. LG 31.205, known for high starch and well-developed cobs, is another variety favoured at Cross Hill Farm in recent seasons, whilst the latest high performance specialist grain option LG 31.160 is set to be included going forward. 

“Our Conclusion crops produced over 11t/ha of grain maize in 2025, and it wasn’t a particularly good year given the drought conditions,” adds Chris. “The other important point about Conclusion, and other Limagrain varieties, like Duke and Ambition, is that they crimp really nicely. It’s important, because it affects how long the crimping takes as well as the quality of the crimped grain.”

Chris has found crimped and clamped grain maize form the foundation of the farm’s feeding system

The aim is to have the cobs at 65-68% dry matter for grain maize, with the harvest at Cross Hill Farm taking place anywhere between October and early December, depending on the season. The Welburns have their own maize header for their New Holland combine, simply changing the concave to adapt for grain maize. The aim is to crimp the crop straight off the combine.

“When we’re combining grain maize, most of the crop residue goes under the header, so it creates a carpet for the combine to travel on, minimising soil damage,” say Chris. “We can crimp up to 25 tonnes/hour, adding an inoculant as we go, and clamp everything we need for the cattle. The rest we sell, for clamping off the farm, usually for a little below the price of wheat.”

The crimped maize goes into the farm’s beef finishing ration, typically fed in equal proportions with barley. It’s a feed that Chris believes contributes significantly to the performance of the cattle enterprise, which buys in pure dairy and dairy-cross calves at a week to ten days old and takes everything through to finish at 500-600kg, averaging an impressive 1.3kg/day liveweight gain.

Chris Welburn feeding crimped maize to his cattle, a core ingredient in the farm’s rotation

“Our aim to grow as much of the cattle ration ourselves as we possibly can and crimped maize is an integral part of the finishing ration, fed from around 12 months,” he adds. “It’s pure energy, but can be fed at high levels without the risk of acidosis.

“In recent years, we’ve also starting taking some of the maize as forage, for inclusion in the TMR for the growing cattle.”

The main strategy around growing maize at Cross Hill Farm is to do so as economically as possible, so full use is made of cattle manure to boost soil fertility. The ground is always ploughed when maize is grown after maize, to minimise disease risks, whereas minimum tillage and sub-soiling may be sufficient following sugar beet, for example.

Drilling is typically carried out in the last week of April and into early May, with a liquid fertiliser (16:0:8 NPK), applied down the spout at 200l/ha, and a granular fertiliser spread before the end of May.

“We’re also applying a molasses-based foliar fertiliser whilst the crop is just still sprayable, towards the end of July, as it is a very efficient way of using nitrogen,” says Chris. “We’re always trying different things, in order to grow maize in the best way possible. For example, we’ve tried sowing westerwolds ryegrass after winter wheat, and then taking a crop in April before spraying it off. We’ve then minimised the cultivations by doing low disturbance sub-soiling and using a strip tiller ahead of the maize drill.

“It’s important to keep trying to move forward, to grow the crop more efficiently and with less impact on the environment.”

Amongst all the uncertainty in farming, growing maize brings a degree of consistency and reliability on this North Yorkshire farm. It provides undoubted rotational benefits, will outperform wheat in a drought, underpins the performance in the beef enterprise, and offers the option of a saleable cash crop. With new improved varieties coming through every year, there’s little doubt that it will remain central to plans at Cross Hill Farm for many years to come.

Maize now has the potential to outperform many alternative break crops in gross margin terms whilst offering arable farmers significant rotational benefits such as improved grass weed control, according to experts taking part in a recent Limagrain Field Seeds webinar, attended by farmers from across the UK.

Speakers pointed to the growing demand for anaerobic digester (AD) feedstocks and the high value of grain maize as evidence of market-led opportunities for growers.

They also highlighted the accelerated plant breeding progress that is allowing increased yields of a higher quality crop within a shorter growing window, which is giving more farmers the opportunity to follow maize successfully with winter wheat, for example.

“Potential returns for arable farmers in many parts of England are attractive, with maize offering around two or three times the gross margin of spring oats or spring beans,” said James Webster-Rusk, Senior Agribusiness Analysist for The Anderson Centre.

James Webster Rusk is confident that maize will deliver stronger margins than other spring crops

“The market is there, with growing demand for AD feedstocks and many plants looking to replenish depleted stocks in 2026. With regards to grain maize, we currently import 2.5 million tonnes a year, so there are opportunities to replace at least some of this with homegrown crops, and also to grow maize on contract for crimping, wholecrop or forage.

“In terms of rotational benefits, the different herbicide chemistry used for maize tends to help with the control of grass weeds, including blackgrass, and – being a spring drilled crop with a relatively late harvest – it offers a helpful spread in workloads.”

Whilst maize has historically been associated in some areas with difficult harvesting conditions and the risk of soil damage, speakers agreed on the modern-day potential for the crop to be environmentally beneficial.

“Breeding advances within the last ten years now mean we are growing high yielding crops of maize that mature in a much shorter growing window,” said Limagrain’s Richard Camplin.

“Earlier harvests are most certainly desirable in terms of soil health, not only avoiding structural damage but also allowing the establishment of a following crop that will use up surplus nutrients and prevent soil erosion.

“With the emergence of specialist grain maize options like LG 31.160 and very early maturity high yielders such as Harmony, breeding programmes are delivering varieties that work well within rotations and are suited to helping arable farmers respond to the market opportunities.”

Maize in Practice

Leicestershire arable and poultry farmer Will Oliver said, as part of his practical overview, that grain maize grown within his arable rotation now rivals winter wheat as the main crop. “We have a ready market for grain maize, selling to local poultry units, and it’s a crop that we find fits well into the rotation,” he said. “There’s a positive for soil health, because of the organic matter that’s being incorporated and reduced traffic when growing it, and it fits well within our SFI agreements. “Winter wheat usually performs well enough following maize, but I’d accept a lower margin in return for the wider benefits that it brings to the rotation. “It’s important to factor in drying costs when growing grain maize, but earlier maturing varieties are helping to ensure more of the moisture is lost in the field.”

Leicestershire farmer Will Oliver explains why grain maize has become a key crop on his farm

In their summing up, speakers reiterated the opportunities for maize as a break crop in the arable rotation, but reinforced the importance of seeking out markets in advance and growing varieties from the latest BSPB/NIAB Descriptive List best suited to specific farm conditions and the planned end use.     

Maize: The New Game-Changer for Doddington Dairy’s Forage and Sustainability Strategy

Farming in the rain shadow of the Cheviot Hills and with predominantly light sandy soils, Neill and Jackie Maxwell and their team at Doddington Dairy find growing grass to be a challenge.

Fodder beet bolsters the ration for the 400 strong crossbred milking herd, but what they have really wanted to include for quite a number of years is maize.

Neill and Jackie Maxwell make French-style raw milk cheese and ice cream at Doddington Dairy and won Best Food Producers in the BBC Food and Farming Awards in 2015.

Based near Wooler, in Northumberland, on the same latitude as Moscow and the south of Sweden, that’s not been an option, at least not until the 2025 season.

“Maize is a potential game-changer for us, particularly on a farm where grass growth is often difficult,” explains Neill. “Our aim is to produce as much as possible from homegrown crops, so to have our own maize in the ration will be a big step forward.

“We did try growing it around 15 years ago, but without any success. Growing maize under plastic has seemed like our only option, but we would not want the risk of microplastics in our soils and we have a strong sustainability agenda across the business.

”We decided to try growing maize unprotected again after attending an alternative forages workshop where we heard about the progress in maize breeding.

“From our experience this summer, it’s quite possible that maize will perform best for us in the years that are the most difficult to grow grass. Farming is about mitigating risk, so having another crop in the mix that can add great value to the ration whilst bolstering our overall forage output will be a great result.”

The event Neill refers to was organised by Nickerson and featured a presentation from Limagrain Field Seeds UK on the increased potential of earlier maturing varieties. Seed specialist David Watson, who hosted the meeting, helped the Doddington Dairy team in the choice of variety and the management of the crop.

“I advised growing a variety called Prospect, because I knew it had a great track record and felt it would best suit the site,” he explains. “With an FAO of 170, it’s an early variety, though not the earliest produced from the Limagrain breeding programme, but the farm has light soils and the fields in question have a southerly aspect, so I felt sure it could do well. The early vigour certainly helped the crop and with high starch and very good cell wall digestibility it should deliver what the farm wants in the ration.”

The farm grew a cautious 21 acres in 2025, on land close to the farmstead. After plentiful applications of muck and slurry, the sandy ground was ploughed and cultivated before being drilled and then rolled. A compound fertiliser was included down the spout and nitrogen was applied onto the seedbed at 125kg N/ha. A standard programme of pre- and post-emergence herbicides, as advised by the farm’s agronomist, were the only other inputs.

“We drilled on 1^st May in dry conditions, but there was moisture in the seedbed,” recalls Neill. “The crop was out of the ground quickly, and then it rained in June. Thereafter conditions remained largely dry.

“It was not the conditions for growing grass, but the maize continued to thrive. Our biggest issue turned out to be the crows feasting on the maize seedlings.”

The crop was fully mature and harvested on 30^th September, yielding 18.5 tonnes/acre at 33% dry matter, but the on-board yield monitor on the forager revealed some areas of the field yielding 22 to 23 tonnes/acre.

“The variation in yields was almost certainly due to the crow damage,” adds Neill. “Despite that, we’re delighted with how the crop has performed, and particularly with the earliness as it has allowed us plenty of time to drill a following crop of wheat. We don’t ever leave bare ground over winter, so such early maturity is a big factor in the crop being viable for us.”

The farm, run by Neill and Jackie Maxwell, their herd manager James Kelly and his dedicated team, extends to 1,200 tenanted acres. Wheat, barley and fodder beet are grown across about 300 acres, with all crops fed at home.

Calving all year round, the milking herd at Doddington Dairy averages around 8,500 litres/cow. Milk solids are particularly important, with around 20% of production going into the farm’s specialist French-style raw milk cheeses and ice cream. The majority of the milk is sold on a contract to Arla.

Maize has been a game-changer for Jackie and Neill.

“We’re striving all the time to lower our carbon footprint and maximise sustainability,” continues Neill. “So, despite the challenges, we try to make as much as we can from grazing, and will aim to have some cows at grass from the beginning of April through until Christmas if we possibly can, as well as making up to four cuts of grass silage.

From this winter, maize will be included in the milking ration for the first time, replacing a proportion of the grass silage and potentially some of the bought-in straights. The aim is to take the pressure off grass production and also boost the performance of the cows at a critical time.

“We’ll include maize in the ration for the early lactation cows, to maximise intakes and yields,” says Neill. “We’ll go into it steadily at first, but do see great potential going forward.”

The milking ration is fed twice daily, after milking, not least to avoid the risk of cows gorging on fodder beet, which – once available – is fed at a rate of 15kg/cow/day. Also included is a set level of 12kg/cow of concentrate feed, fed as straights, as well as ground maize, soya hulls, barley and wholecrop wheat. There is no bought in compound feed or soya.

“Our herd manager James is first class and I know he and his team are really looking forward to feeding maize,” concludes Neill. “It will allow us to reduce our reliance on grass, making more milk at a similar cost, and that’s all building sustainability into the business and reducing our exposure to risk. If all goes as we hope, we’ll look to increase the maize acreage next year by two or three times.”

Farming on the northern margins of the North Wessex Downs, Hamish McIntosh has always tried to maximise the contribution maize makes to his milking ration.

Soil types vary across the farm, some being challengingly heavy, so success has come with tailoring variety selection according to field conditions, as well as staying abreast of the latest developments in maize breeding, in order to continually improve his output.

In 2025 – a year that has proved challenging for many maize growers – the decision to grow one of the very latest early maturing varieties to come onto the BSPB/NIAB Descriptive List has certainly paid dividends.

Based at Hardwell Farm, near Knighton in Oxfordshire, Hamish runs a 400-cow milking herd alongside 200 acres of arable cropping and a similar acreage of grassland. The herd is conventionally managed, calving all year round, housed in the winter months, and outside during the grazing season. In an area where TB is a continual threat, as many heifers as possible are retained on the farm, in a quest to maintain numbers.

Hamish McIntosh and his dairy herd at Hardwell Farm.

The aim is to minimise parlour-fed concentrates and derive as much as possible from the mixed ration, to support average yields of 9,000 litres/cow. Maize silage certainly plays a key part in this strategy, comprising around half of the forage component.

Around 200 acres of maize are grown on the farm, fitting into a rotation with winter wheat and grass, and this year a quarter of the acreage was given over to newly listed LG Highlight.

“It’s a variety that has looked really promising in trials and fits perfectly with Hamish’s requirement for high dry matter yields, quality in the clamp, and a sufficiently early harvest to allow a following crop of winter wheat to be established,” says Nickerson seed specialist Fraser House. “LG Highlight will be one of the top new varieties for dry matter yield on the 2027 maize Descriptive Lists, and with an FAO rating of 170 it certainly has the earliness. It also has high starch yields and strong agronomic characteristics. Where farmers are looking for the combination of yield, quality and earliness, this is a variety that really hits the sweet spot.”

It was grown alongside Prospect, also FAO 170, and the slightly later maturing Conclusion, both from the Limagrain Field Seeds UK breeding programme and having a proven track record on the farm.

“Some of the land at Hardwell Farm is not the best for maize, so the policy is to grow what we think will perform in the particular circumstances,” continues Fraser. “Robust varieties with early vigour, good standing power and the necessary disease tolerance are what’s required, plus early maturity and high dry matter yields. Increasingly, we are seeing varieties that will deliver this full package, with the additional benefits of high cell wall digestibility that ensure farmers like Hamish can rely on having a full clamp of energy dense forage.”

Hamish was delighted with the yield and quality of the LG Highlight silage.

With so much rain falling throughout the winter and spring, Hamish had to work hard to create a suitable seedbed for his 2025 maize crop. All the maize ground is ploughed, with slurry and manure applied before and sometimes afterwards.

“The heavy rain seems to be becoming more common and it does not help our heavier ground,” he says. “We’re increasingly needing to sub-soil, and on our heavier ground we’ll normally need to power harrow before drilling. We have our own maize drill, so we can be timely, going when the conditions are right.”

Optimum drilling date is 1^st May at Hardwell Farm, and maize is drilled with DAP fertiliser down the spout and 125kg N/ha onto the seedbed. Pre- and post-emergence herbicides maintain good weed control, and – with that including a reduction in blackgrass on the farm – offers a wider benefit of having maize in the rotation.

“I’m aware of the specialist maize fertilisers and developments like foliar sprays, and we’ll keep a close eye on any ways to improve, but – at the moment – our system seems to be working. Growing the right varieties is a good part of our success, and being aware of the progress in maize breeding.”

The maize at Hardwell Farm was harvested on 20^th September and, whilst it was not the best year for maize generally, Hamish was happy to see the LG Highlight standing out.

“It was our largest crop with big mature cobs, so it delivered what we wanted,” he says.

“We probably cut a little earlier than some, because I like to see some green leaf in the clamp. Overall, I’m very happy with the performance of the maize, and it was off in good time to establish the winter wheat.”

The maize will go into the ration at what Hamish considers the optimum level of around 50% of the forage, alongside grass silage, biscuit meal, a rape-soya meal and urea.

With maize breeding progress providing earlier varieties that avoid any compromise on dry matter yield or forage quality, it is a crop that will continue to be of great value at Hardwell Farm, for both milk production and crop rotation.

Early Maturing Maize Varieties: What Farmers Really Gain by Going Earlier

Producing milk without maize isn’t something that Flintshire dairy farmer Tom Beltcher would like to consider.

Not only is it a vital part of his 450-cow herd’s ration, but it has become an integral part of his farming system, fitting into a rotation in which double-cropping is now commonplace.

Success in recent years has come through the use of the earliest maturing varieties available, with continuing progress by maize breeders meaning that an early harvest does not have to result in any compromises on yield, nutritional value or digestibility.

“We’ve grown maize for as long as I can remember, but it has become more important to us in the last ten years,” says Tom. “Our cows are averaging around 10,000 litres, so maize silage is essential to complement grass silage. We make our grass silage using a multi-cut system. This produces a high quality forage but, with grass, there is always more risk of inconsistencies resulting from variable growing conditions and unpredictable weather at the time you’re cutting. Maize now typically makes up around half of our forage ration and offers all-important stability and consistency that ensures we keep the cows performing.”

The Beltchers are based at Argoed Hall Farm, near Mold, and typically grow around 250 acres of maize each year, with a further 150 acres usually grown on contract on neighbouring farms. Whether the maize is grown at home or on contract, Tom insists on a responsible approach that looks after the land and minimises the risks of any problems associated with a late harvest in wet conditions.

“The aim is to have the crops off as early as we can, allowing the opportunity to establish another crop in the autumn,” he says. “On our farm that is usually winter wheat, but it can be a grass crop that will provide an early first cut. We apply the same thinking with crops grown on contract, because double-cropping is the best way to manage the land, environmentally and economically. It’s about working together for the best mutual outcomes.”

Tom Beltcher with his father Roger.

Argoed Hall Farm is predominantly a heavy clay site, so is considered marginal for maize. The policy is to grow the earliest maturing material available, with Limagrain Field Seeds’ Ultra Early variety Duke standing out in 2025. Duke is an example of the type of genetic progress resulting from an extensive UK breeding programme that is focused on producing stable varieties that deliver high yields of dry matter within a shorter growing window, without compromising on nutritional quality and digestibility.

With up to eight trials sites across the UK, Limagrain Fields Seeds is selecting LG varieties that have the proven consistency of performance required in UK conditions by farmers like Tom Beltcher, delivering a number of new improved varieties onto the NIAB/BSPB Descriptive List every year.

“Overall, we’ve averaged around 18-19 tonnes per acre across all our maize crops this year, and Duke has been the standout performer,” adds Tom. “We drilled about a week earlier than usual, in the first week of April, because seedbed conditions were right. It was something of a gamble, but it paid off because we had moist soils during the critical establishment phase. Given the early start the maize had, it’s been a good year for the crop, and our earliest harvest ever.”

Making up around half of the forage ration, maize provides much-needed stability and consistency alongside grass silage.

For Tom, maize is his priority, which he admits sometimes means the farm is not making full use of cover crops grown over winter. It’s a sacrifice he considers worthwhile, however, as it means the maize always has the best possible start.

“We want to have the maize ground mucked, ploughed, broken down and power harrowed by early April, so we can drill as soon as soil temperatures are right,” he says.

“That may mean we’re taking a very early first cut off a grass crop, and losing potential yield, but I’d rather maximise what we can achieve from the maize.”

Maize is drilled with a microgranular phosphate and nitrogen fertiliser down the spout, and receives a further 100 units of nitrogen per acre when the crop is around knee-high. Crops receive pre-emergence and post-emergence herbicides, but no other specialist inputs.

“It’s a great crop, when you consider the amount of high quality dry matter you can put in the clamp, and an ideal complement for grass silage.

“Maize has at times had something of a bad name, in relation to issues such as soil erosion, but there is really no need for that to be the case. Growing the very early maturing varieties, which can now deliver great yields and quality, should – more often than not – allow the opportunities to harvest in good conditions and establish an over-winter crop. In the majority of cases, this should be a positive for soil health and the environment, as well as producing clamps full of high quality forage.”

High-Quality Maize is Driving Exceptional Dry Matter Intakes in UK Dairy Herds

For Somerset dairy farmer Andrew Bristol, dry matter intake is the key parameter as he seeks to maintain performance in his 240-cow high yielding Holstein Friesian herd. 

At an impressive 27.1 kg DM/cow/day with the full ration included, he is on target, driving yields of 11,400 litres/cow and with an improving milk from forage figure sitting close to 3,500 litres/cow.

Though it makes up only around twenty percent of the dry matter in the ration, high quality maize is an essential element, giving much needed balance alongside grass silage, and boosting the energy levels of the forage component.

“Intakes, intakes, intakes … that’s my mantra,” says Andrew. “I am a great believer in giving the cows variety in order to stimulate intakes, and maize certainly delivers that, and more. If we could grow more maize and increase the proportion in the ration, we would, but most of our land is simply too heavy. Improvements in maize breeding are certainly helping, so the contribution is growing, and perhaps in the future we’ll be able to increase from current levels.”

Maize is an essential part of the milking ration, offering an ideal balance to the grass silage and helping to drive intakes.

Based at Greenlands Farm, near Wincanton, Andrew operates a relatively simple dairying system, with just himself and one herdsman employed. Running a flying herd, and calving all year round, with grazing only for the later lactation cows, the focus is primarily on management of the cows and their housed ration, with full reliance on contractors when it comes to maize growing, for example. Andrew also works with Pearce Seeds agronomist Ben Allard, who is involved not only in maize variety selection but also has a valued input throughout the growing process.

“Given the heavy wet clay soil type on most of this farm, we are looking for very early varieties in order to achieve a mature crop in the shortest window, to avoid harvesting in wet conditions that can result in soil damage and erosion,” says Ben. “On Andrew’s heaviest ground, we grew Limagrain’s new ultra early variety LG 31.152, the earliest he’s ever grown. This variety yields very well and also benefits from good early vigour, so the crop was up and out of the ground very quickly, resulting in a good start that proved particularly important this season. On the lighter ground, we grew the slightly later variety Dignity, another Limagrain variety with good early vigour and strong agronomic characteristics, and very high yielding.”

The good start culminated in a very impressive outcome, with maize being harvested at the end of August, a full month earlier than usual, and the overall average yield across the farm’s sixty acres averaging around 18 tonnes per acre.

“Our yields were slightly up on what we normally expect,” reveals Andrew, “and the LG 31.152 most certainly contributed to that, despite being a very early variety. From an early forage analysis, the dry matter percentage is a little lower than optimal at 29.0%, but a starch level of 33.4% and ME of 11.7% are where we want them to be.”

Maize yields at Andrew Bristol’s Greenlands Farm were higher than usual from a harvest that was around a month earlier than the norm.

Another factor that impressed Andrew was the stay-green characteristic of the varieties, something that has been a feature of Limagrain’s breeding programme for many years as it strives for better and better nutritional value in forage maize.

“To have a good hard mature cob whilst the leaves and stem are still green is a real benefit,” he says. “It means the crop ensiles better and the end result is a more stable and palatable forage for the cows. You can see it on the clamp face and in the cows’ intakes.”

Maize is grown as part of a rotation at Greenlands Farm that includes wheat, which all goes into the milking ration either rolled or caustic-treated. The ground destined for maize receives around 6,000 gallons/acre of slurry and 10 tonnes/acre of farmyard manure in the spring before being ploughed. Two passes with a power harrow are usually sufficient before drilling, with the heavier ground also being sub-soiled when necessary. Maize was drilled in 2025 on 26^th April, when soils were still moist. Apart from pre- and post-emergence herbicides, the only other input is nitrogen fertiliser applied to the seedbed at 60 units N/acre.

The summer of 2025 proved to be a good one for growing maize, at least in Andrew’s area, but it was still a surprise to have a mature crop as early as the end of August. The fact that yields were slightly up on the norm underlines how modern maize breeding can deliver earlier maturity without compromising significantly on output.

Andrew began feeding the maize almost immediately, including it in a mixed ration alongside grass silage, a rape meal and protected rape blend, rolled and caustic treated wheat, minerals and yeast, fed once a day.

“It’s a key ingredient in the ration so I don’t like to be without it,” he adds. “There’s no doubt that having earlier varieties that deliver high yields is making the crop more viable on a heavy land farm like ours, which could in future mean we are able to grown more. In addition, qualities like stay-green help to add value when it comes to feeding out, not least in helping to drive those all-important intakes.”

Table: Typical fresh weight milking ration at Greenlands Farm

The exceptionally dry season proved challenging for many crops this harvest, and although some yields did suffer, others fared much better, with some stand-out performers, as the LG Legends explain.

The LG Legends are a group of farmers from around the UK, working with diverse situations on-farm. They share their honest and practical on-farm experiences, from variety selection and husbandry, to harvest results and everything in between.

LG Typhoon tops the charts

Ryan McCormack

In Suffolk, LG Typhoon was the star performer at Dennington Hall Farms, where a 100 ha block averaged 10.1 t/ha, with good grain quality and plenty of high quality straw, says farm manager, Ryan McCormack.

“It was the first of the wheats to be harvested, starting on 14 July, and gave the highest average yield out of all wheat varieties we grew last season; one small field achieved 11.7 t/ha, which was a good result given the dry conditions.”

All LG Typhoon was grown as a first wheat after beans, with minimal surface cultivations ahead of drilling in the first week of October – slightly later than he would normally sow the variety.

Another strong performer was LG Beowulf, which was coming in at over 10 t/ha, until 60mm of rain in the third week of July interrupted harvest for 10 days, Ryan says. “That rain delay seemed to knock the specific weight by 7-8%, and had a similar impact on yield. Despite that, it still did well overall, and, like the LG Typhoon, stayed pretty clean.

“We didn’t see any yellow rust, although to be fair, it was quite a low disease pressure season. We will be growing more LG Typhoon and LG Beowulf next year, combatting any yellow rust risk by applying tebuconazole at T0 to bolster disease resistance”. LG Redwald is another wheat variety the farm will grow again this autumn, as the extra vigour ideally suits later sowing after sugar beet, he notes.

 

After achieving an impressive 10.75 t/ha this harvest, winter barley variety LG Caravelle is another that will be grown again in 2025/26, along with LG Capitol, 100 ha of LG Avenger oilseed rape, and the new candidate hard wheat, LG Defiance. “We saw LG Defiance in trials and really liked how it looked, so will give it a try this autumn as a first wheat after oilseed rape.”

OSR is stand-out performer

Rob Atkin

For Staffordshire grower, Rob Atkin, oilseed rape has been the “crop of the year” on the 380 ha mixed family farm.

His 14 ha of LG Armada yielded around 5 t/ha (2 t/acre), well above the farm average of nearer 4.2 t/ha (1.7 t/acre), and with relatively high oil content.

“For us, it was one of the best years for growing oilseed rape for a long time.”

The two fields both followed winter barley; one drilled on 5^th August, the other on the 25^th. “The later-sown field did struggle a bit with pigeon damage last autumn, but other than that, there wasn’t a lot to choose between them. They established quickly and looked well all through winter, and into spring/summer,” he notes.

Rob has increased his oilseed rape area to 60 ha for 2025/26, split 50:50 between LG Armada and the cabbage stem flea beetle-resilient variety, LG Avenger. “Although CSFB pressure was very low last year, and we haven’t seen much activity so far this year, it can be an issue here, so it’s another tool to help reduce risk.”

On the cereals front, Rob acknowledges dry weather did reduce the farm’s average wheat yield by around 2.5 t/ha across all fields and varieties, although there were stronger performers within this, in a very challenging season.

“LG Rebellion is one variety that’s really surprised me in how well it’s done considering the year. We tried a small 5 ha area for the first time, which despite being drilled late in unfavourable conditions after maize, still did really well, yielding 7.4 t/ha (3 t/acre). There was a lot of rain soon after drilling, but it survived really well, with nice even establishment, and got going quickly in the spring. It also stayed clean and produced a decent amount of straw.”

A similar trial area of LG Beowulf did equally well, coming in just shy of the farm’s highest average yield, at 8.4 t/ha (3.4 t/acre), with good specific weight (77 kg/hl), protein (12.3%) and Hagberg (283).

Given this strong performance, he plans to grow both varieties on a larger scale this coming season, increasing the total area to 40-50 ha.

Overcoming late-sowing challenges

Trialling new varieties in a season as challenging and stressful as 2024/25 was never going to be ideal, but Leicestershire farmer Will Oliver says there were still some interesting differences, which will help shape future decisions.

A small area of three LG varieties was trialled on the 650 ha arable, grassland and indoor poultry farm last season, including LG Beowulf, LG Rebellion, and LG Redwald (500 kg of seed for each).

Will Oliver

“They were all fairly late sown, direct drilled after maize in November, onto heavy, high magnesium content clay soil, so it certainly wasn’t ideal conditions. There were challenges at every end of the growing season; crops were drilled in the wet, and then when we needed rain, there wasn’t any.”

As a consequence, the average yield across all varieties and total wheat area of 300 ha was down 1.4 t/ha on the farm’s five-year average of 8.5 t/ha, with LG Redwald and LG Rebellion performing best out of the LG trial varieties, Will says.

He was particularly impressed by the establishment and growth of the LG Rebellion through last autumn and into spring, as well as its final specific weight, which came in at 78 kg/hl.

“We will probably grow LG Rebellion again on a larger scale this autumn, alongside KWS Vibe, and Champion; all of which will be for seed.

“It’s been a hard year to judge varieties on yield performance alone, so I’m basing my decisions on how varieties established and looked through the season. We want a variety that can establish in late-drilling, more challenging situations, and I felt the LG Rebellion emerged well and looked better than some others we trialled.”

The wheat area is likely to be down to nearer 200 ha this autumn though, as after a six-year hiatus, oilseed rape is back into the rotation. Some 130 ha of LG Avenger was direct drilled after wheat in late August, just ahead of forecast rain.

“We’ve not grown oilseed rape for six years, but have decided to give it another go,” Will notes.

Other cropping includes 200 ha of maize, mainly LG Prospect and LG30.179, drilled in early April. “We normally combine our maize, but because of the forage shortage this year, we took the decision to sell it as a standing crop. Everything looks good, and it sold well at auction. Although it’s been a challenging year for maize, I’d say it’s been our stand-out crop.”

Will likes LG Prospect and LG30.179, and plans to grow both varieties again next year. “I like the early maturity, which really helps us get the following wheat crop in. They also have good standing power, good cob size, and they also tend to combine easier than some other varieties.”

Defying a tough season

Luke Palmer

The winter barley variety LG Capitol was one of the highlights from a challenging season for Cambridgeshire grower, Luke Palmer.

Some 100 ha (250 acres) was grown for seed, on a range of different soil types, with yields averaging 9.1 t/ha across the board, and excellent grain quality.

“That’s a pretty good result considering the season, and the fact that none of it was drilled particularly early last autumn. Most of the LG Capitol followed either sugar beet, potatoes, or maize, so was sown anywhere between the 1^st October and 20^th November. It got up and grew away really well though.”

All straw was baled, although he admits straw yields were down on normal, due to the exceptionally dry spring and summer.

Mr Palmer plans to grow a similar area of LG Capitol again this coming season.

“It’s an excellent variety that I’m really pleased with. It has a high specific weight, strong disease profile, and seems to yield well on our land.”

Located just outside Uttoxeter in Staffordshire, Rob Atkin manages a 1,000-acre farm with a focus on arable cropping and grass -fed, home-reared cattle. As a third-generation farmer, he works alongside his father Peter, combining experience with a practical, forward-thinking approach to land management.

The farm operates across a wide range of soil types, from organic-rich alluvial soils to heavier, more challenging clays; Mixed – light alluvial (9–12% OM) to heavy clay (3–4% OM).

To maintain soil structure and workability, Rob has used a shallow tillage system since 2003, working to a depth of 10–15 cm, but remains flexible — what he refers to as “thoughtful farming” — adjusting his methods according to seasonal and soil conditions.

The cropping strategy is designed around maximising first wheat performance while maintaining oilseed rape (OSR) as a break crop just once every five years. The rotation includes wheat, barley (winter and spring), oats, beans, maize, and OSR. Cattle are fed using home-grown rations based on forage maize and beans, contributing to a fully integrated farm system.

How many different varieties are grown and how long is a variety grown for?

Wheat: LG Beowulf, LG Rebellion, Oxford, Bamford, LG Typhoon
Winter Barley: LG Caravelle
Spring Barley: LG Diablo, Planet, Skyway
Oats: Ascani
Beans: LG Raptor (spring), Tundra (winter)
Maize: KWS Leto, LG Gema

Rob grows a wide range of varieties tailored to different roles in the rotation.

His current wheat portfolio includes LG Beowulf, LG Rebellion, Oxford, Bamford, and LG Typhoon, grown for feed and marketed through Openfield and ADM. He aims for around 8.5t/ha.

“A variety is typically grown for two to three years to assess performance across different seasons. If it continues to deliver strong results, it remains in the programme until yield performance begins to decline,” he explains.

Barley plays a smaller role in the rotation, with 13–14 ha of winter barley (currently LG Caravelle) and around 80 ha of spring barley split between LG Diablo, Planet, and Skyway.

OSR remains an important break crop, typically covering 50–60 ha. While the farm has long favoured Dekalb hybrids, this season Rob is trialling LG Armada and LG Avenger to evaluate their performance.
Rob prefers to use local trials when looking at new varieties to grow. “ We are an Agrii iFarm and host trials for then, so that gives us an invaluable insight to how varieties will grow on our farm, I also judge for the Staffordshire Agricultural Society so get to visit farms in the region and look at a range of different varieties that way.”

What characteristics are most important to you when choosing a variety?

For Rob, yield remains a key priority — but not at any cost. He looks for varieties that offer good performance without needing excessive inputs.

“Yield is always important,” he says, “but I want that to come without ridiculously high inputs— we are not interested in a variety that requires high spend to push for yields.”

High disease resistance is just as critical. “That’s really linked to yield and just as important,” he adds.

Crop vigour is another major consideration, both in autumn and spring. “I’d much rather be managing a forward crop in March than trying to catch one up.”

Early drilling suitability rounds out the main criteria, as drilling around the third week of September is standard practice on the farm. “Any later than this and crops just don’t have the time to get the tillers on before the winter.”

1. Yield
2. Disease resistance
3. Vigour
4. Early driller

Have these characteristics, or weight of importance, changed over recent years?

No! Rob believes his priorities in variety selection have remained consistent. While environmental and regulatory pressures may be evolving, the fundamental traits he values have stayed the same.

“It’s always been about finding the right balance between yield and reliable agronomics,” he says.

Why LG varieties?

LG varieties feature strongly in Rob’s rotation because they offer a practical combination of yield and agronomic strength.

“In my view, LG produces farmer-friendly varieties,” he explains. “They’re high yielding, but they’re also clean, vigorous, and manageable. That gives us a kind of yield security — and that’s worth a lot.”

He also values how clearly LG varieties are positioned in terms of agronomy and management. “Take LG Typhoon — it’s well suited to early drilling, and it’s a very clean variety. You know where it fits and how to get the best out of it.”

How have the varieties performed this season?

Crops are performing well so far, with low disease pressure across all varieties. Rob reports that the season has allowed for a reduction in fungicide inputs, helping to control costs without compromising crop health.

“Disease levels have been low this year, so we dropped the T0 spray. We’ll go in with a T2 as the flag leaf pulls away from the ear — what I call a ‘head & shoulders’ spray.”

To compensate for the lighter fungicide programme, Rob has focused on supporting plant health through nutrition:

• Nitrogen: All wheat crops receive around 200 kg/ha in three splits, with early applications of sulphur
• Micronutrients: Particular attention is paid to managing trace elements, especially on the alluvial soils where nutrient availability can be more variable
• Spring applications: Crops received boron, sulphur, magnesium, and manganese to support key growth stages

“On the light soils, trace elements like magnesium and manganese are critical. If they’re not available when the plant needs them, it shows.”

“Among the wheats LG Beowulf and LG Rebellion are looking very clean this spring, and in the dry conditions appear to be holding on better than other varieties.”

OSR crops are also showing promise, supported by slurry applications pre-drilling and targeted spring nutrition.

“LG Armada has held onto its petals just that little but longer than other varieties, so hopefully this will play out in numbers of pods.”

• Early slurry helps establish strong root systems
• Spring sulphur is applied to maintain growth and yield potential
• A cost-effective fungicide approach is used — selecting varieties with good phoma and sclerotinia resistance is essential

“We don’t overspend on fungicides for OSR — that’s why varietal resistance is a key factor for us.”

As experienced contractors and longstanding maize growers in their own right, Martin Evans Farming know all about the importance of good variety selection.

In their own case, very early maturity is a key priority, to ensure harvest is underway by the end of September so that following crops can be established in good time.

They also require consistent performance, with starch and energy levels as high as possible to underpin the ration of their 1,500-cow herd of high performing pedigree Holsteins.

“Maize is the mainstay of the forage ration for our milking herd, making up around 60% alongside grass silage,” explains Josh Evans. “The higher the quality, the better, as it reduces other feed costs, but we’re also focused on crops reaching full maturity early. We always aim to establish a following crop to cover the ground over the winter, whether that’s after maize grown within a rotation or a crop that’s grown continuously. It’s important to prevent soil erosion over winter, and to have a crop in the ground to minimise any leaching of nutrients.”

Martin Evans Farming, based at Priddbwll Mawr, Llangedwyn, near Oswestry, usually grows between 500 and 600 acres of maize each year, most of it as part of an arable rotation and typically followed by winter wheat. The remainder is grown on ground suited to continuous maize, where the usual practice is to follow it with an over-winter cover crop, such as a Westerwolds and Italian ryegrass blend.

The farm’s agronomist, Ian Evans of BCW Agriculture Ltd (Frontier), provides guidance on varieties, with the 2024 acreage largely being drilled with the very early variety Skipper or the slightly later maturing Saxon, both from Limagrain and bred through the company’s robust and extensive UK screening and testing programme.

“With such a large and important maize acreage, we’re looking for varieties that will reliably get up and out of the ground, and stand up and perform in terms of yield, starch and energy,” Josh explains. “Skipper meets all these criteria, and as it is very early – often selected to perform in more marginal areas – it delivers the early harvest. Saxon has similar attributes, but is slightly later and therefore a better option for our lighter ground.”

The Priddbwll Holsteins are split into two herds, one milked through a rotary and one through a semi-rapid exit parlour, calving all year round. Milked three times daily, the cows are averaging around 13,000 litres/lactation.

“A typical milking ration will contain 22kg of maize silage and 16kg of grass silage, with rape, wheat, ground maize and a protein blend making up the mix,” adds Josh. “The maize is a primary source of energy, so we are trying to maximise the amount we include in the diet.

“It’s important that we fill the clamps with as good a quality crop as possible, so we need reliably performing varieties, and we do the best job we can with everything from seed bed preparation through to nutrition.”

The maize ground at Priddbwll Mawr benefits from applications of either farmyard manure, slurry or poultry muck, so baseline soil nutrition is good. After ploughing at 8-10 inches, the ground is sub-soiled, usually between 14 and 18 inches, and then power harrowed to create a fine tilth.

“We’ll go over with the power harrow twice if necessary, in order to create the seedbed conditions that we need,” says Josh. “There’s little to be gained trying to cut corners with seedbed preparation.”

Drilling date is dictated by the season, but would be as early as 24th April if conditions allowed. In 2024, with cold and damp conditions dominating until beyond the end of April, drilling was delayed until 12th May, further underlying the importance of selecting early maturing varieties like Skipper to counter harvesting delays due to seasonal conditions. As with variety selection, agronomist Ian Evans advises on any further inputs, with the farm using both pre- and post-emergence herbicides to ensure all crops have a clean start.

With base level soil nutrition underpinned by the application of the farm’s own manures, any additional fertilisers are for targeted use, designed to help early establishment and deliver a boost when the crop needs it most. To this end, a starter fertiliser is applied down the spout at drilling, at a rate of 125kg/ha, delivering nitrogen, phosphate and key trace elements. Then, at around 6-8 weeks, Josh has seen benefits from the use of the slow-release urea Nutrino Pro, applied as a foliar spray.

“We’ve used the liquid fertiliser over the last couple of years and it’s something we’ll continue as it seems to give the crops an advantage.”

Harvest date is determined with the help of Ian Evans, with the optimum dry matter range being between 28 and 32% in order to optimise the starch percentage, metabolisable energy (ME) and neutral detergent fibre (NDF) available to the dairy cows.

“Even in what has been a difficult year for growing maize, we’ve harvested a mature crop in good time and have what we need in the clamps,” Josh concludes.

Learn more about our high performance maize varieties here or contact your usual seed merchant for availability

Download the Maize Variety Selection Guide here

Despite traditionally being regarded as a niche crop in Scotland due its requirement for warm soils and long hours of sunshine, an increasing number of growers north of the border are successfully harvesting maize as a reliable source of winter forage for livestock.

“With careful planning and attention to detail, early maturing maize varieties can produce consistently high yields of dry matter, starch and easily metabolisable energy,” explains Tim Richmond, Maize Manager for Limagrain Field Seeds UK and Ireland.

The latest generation of ultra early varieties means maize is now a viable forage crop for some Scottish growers.

“Thanks to significant investment in maize breeding programmes, Scottish growers now have the option to grow maize without having to drill crops under plastic and without automatically having to sacrifice yield or crop quality in order to secure a safe and early harvest.

“In fact, many growers in Scotland, typically in the Borders but also further north, have achieved good yields from varieties such as Gema, Dignity and Skipper, all of which are able to produce cost-effective crops in a shorter growing season. In the right conditions, all three can be drilled in May and harvested successfully in October, leaving sufficient time for a following catch crop such as forage rye to be grown before the next maize cycle begins. And with the next generation of ultra early varieties such as Duke which has an even shorter growing season, yield, quality and earliness of harvest are even easier to achieve.”

In addition to a variety which matures early and can therefore be harvested in favourable conditions, and which has a high lodging resistance rating to enable it to cope with unfavourable weather conditions, the key to growing a good crop of maize in Scotland is to ensure crops are drilled into a well-prepared seedbed which has warmed to at least 8oC for at least five consecutive days.

“How well a crop performs at harvest ultimately comes down to how it was cared for in its infancy,” Tim continues. “Even the very best genetics can’t compensate for poor soil preparation, a lack of nutrients or seed which hasn’t been drilled to the correct depth, so attention to detail and selecting the right location is vital to ensuring the crop’s success.

“A sheltered location with free draining soils and preferably with a south facing aspect will be beneficial, with growers also advised to work with an experienced maize contractor and agronomist before jumping into growing maize for the first time,” Tim adds. “And growers should also do their own homework to make sure they’re using a suitable variety. The first port of call should be to study the independent data provided by the BSPB/NIAB Forage Maize Descriptive List to create a shortlist of potential varieties, but growers can also access free tools such as the LG Seeds Maize Manager App to determine which variety or varieties are suited to their specific location.”

The LG Maize Manager App simplifies the decision about which variety to grow.

The Maize Manager App uses the latest trials data and postcode-specific Met Office data to calculate Ontario Heat Unit accumulations for the specified location and processes this information to recommend relevant varieties. In doing so, growers can easily select the optimum variety for their location. The App also features a Sowing Manager tool which calculates the optimum seeding rate for the chosen variety, and a Maturity Manager to determine if the selected location is likely to receive sufficient heat units to grow maize and to advice the optimum date for harvest.

“Growers can also find most of the information they need in the LG Maize Variety Selection Guide,” Tim concludes. “As well as making maize variety choice simple, this handy guide also provides a wealth of crop establishment and nutritional advice, as well as some key pointers in terms of bird, insect and disease control.”

More info

For the BSPB/NIAB Forage Maize Descriptive List, click here

To download the LG Maize Manager App from Apple, click here

To download the LG Maize Manager App from Google Play, click here

To view the 2025 LG Maize Variety Selection Guide, click here

Maximising methane output is the primary objective when running an anaerobic digester and, for the Channing family, that means growing the most consistent and high-quality maize feedstock across 1,000 variable acres. Good advice, on-farm analysis and growing the best varieties all play a part in success.

Consistency is key to maximising ad feedstock value

Running a 500kW anaerobic digester fuelled solely by maize, Alistair Channing has – over the past nine years – learned more about growing the crop than most.

From soils to crop sample analysis, he’s left no stone unturned to achieve not only high yields, but also consistency and quality, all in a remarkably short harvest window.

For most of this time, he has worked collaboratively with the specialist maize team at Limagrain, benefiting from agronomic advice, using an assortment of their varieties, and even hosting crop trials.

Alistair Channing grows 1,000 acres of maize as the sole source of feed for his 500kW AD

“We’re growing 1,000 acres of maize in total, half on our own land and half coming from six neighbouring farms,” explains Alistair. “There is naturally a variation in soil types and soil fertility across this acreage, not least because maize is a break crop on most of the neighbouring farms, so the challenge is to have it all, as far as possible, reaching optimum maturity at the same time.

“At one time we grew maize for dairy cows and growing for AD is basically the same. We want an optimum dry matter of 32% and good levels of starch and digestibility in order to maximise the methane output.

“Over the last eight years, average yields on our home ground sit at 18.8t/acre, compared with 17.35t/acre on the other farms.”

In 2024, the 1,000 acre maize harvest for Channing Digester was completed between the 2nd and 6th October, this being at the better end of their target of 5-7 days.

A dry matter of 32% and good levels of starch and digestibility help to maximise methane output from maize.

“Firstly, we select varieties to suit the soil type and the soil fertility, generally earlier maturing types but it depends on the fields, and this helps to achieve consistent maturity dates,” Alistair continues. “This year harvest was a little later than the norm, largely due to conditions in the spring forcing later drilling, but we were still ahead of most other growers. Working with a reliable contractor that runs two full teams is certainly a big part of hitting our objectives.”

At the Channing’s own farm at Brandon Grange near Coventry, where they once grew a lot of potatoes, the sandy loam soils are generally well-suited to growing maize. Varieties this year have included relatively late maturing types, such as LG31.207, but also one of the newer very early varieties, Promise. By matching varieties to soil type and fertility, the aim is to have everything mature at the same time, as close to 32% dry matter as possible.

“Every trailer goes over a weighbridge and we sample every second or third load to measure the dry matter,” says Alistair. “We have our own mobile laboratory to carry out NIR (near infra-red) spectroscopy and also check dry matters in an oven. Payments are made on weights adjusted to 32% dry matter and we want to be scrupulously fair to all parties.”

Yields range from 17.35 to 18.8t/acre depending on soil type and fertility across the farmed acreage.

Consistency in crop yields and maturity is also achieved with a standardised approach to growing, as far as possible. All maize grown for Channing Digester now has to be sown with a maize drill, with DAP (diammonium phosphate) applied down the spout, and there is a collaborative approach to variety selection. At Brandon Grange Farm, maize is now grown with tramlines, allowing digestate to be used between the rows and the application of late nitrogen. Foliar applied nutrition has also been used.

“We’re constantly looking to improve the way we grow maize, with developments such as slow-release nitrogen under consideration,” adds Alistair.

Growing maize sustainably has always been a priority for the Channings, and the early harvest is important as it allows the establishment of a cover crop, which now enables the farm to qualify for an SFI payment.

“We usually use a mixture of spring oats and mustard, which we seek to establish soon after the maize comes off,” concludes Alistair. “We see this as a green manure, and destroy it mechanically, preferring not to use glyphosate, usually in February. This leaves ample time to apply digestate before preparing the ground for the next crop.

“It’s all about doing the job the best way that we can.”

ROBUST CROPPING PLAN ESSENTIAL

With the government’s Green Gas Support Scheme open to applications until March 2028, interest in growing maize as an important part of the feedstock for biomethane plants remains high.

According to Tim Richmond, Maize Manager for Limagrain Field Seeds UK & Ireland, AD plants are increasing in scale, but the principles around growing a crop remain very much the same.

“Whatever the size of the operation, maximum efficiency will be achieved when all the maize is harvested at the optimum dry matter, and as early in the season as possible,” he says. “A robust cropping plan is even more important for someone that may be harvesting as much as 10,000 acres to supply a biomethane plant.

“After a harvest like 2024, the importance of early maturing varieties cannot be emphasised enough. Avoiding a wet and muddy harvest should be a priority within that cropping plan. Furthermore, early harvests will allow the establishment of cover crops, which is first and foremost best practice but now has the added benefit of an SFI payment.”

When it comes to the suitability of varieties for AD, Limagrain does test varieties for gas output, but as important is the anecdotal evidence coming back from the many plants that the company is working with.

“Often the advice is to grow a range of varieties, tailored to soil type and conditions, that will deliver 32% dry matter within a safe harvest window, with the starch level and cell wall digestibility to maximise gas production,” he adds. “We have a lot of experience of supporting biomethane plant operators, not just in choice of varieties but also how to grow maize to achieve the best outputs.”

Find out more

Learn more about our high performance maize varieties here or contact your usual seed merchant for availability

Download the Maize Variety Selection Guide here