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Undersowing mixtures for maize

The benefits of under-sowing a cover crop into maize

  • Reduced nitrate leaching

  • Potential for improved digestate utilisation

  • Improve soil structure

  • Can help to reduce soil erosion

  • Improve organic matter levels

  • Potential for winter livestock grazing

  • Options available for the following SFI schemes: SAM2, CSAM2 and SOH4

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The environmental impact of maize growing in the UK is a topic that continues to cause debate amongst growers, environmentalists and the general public.

However, taking a more holistic approach to maize growing can drastically reduce the impact of the crop. Cover cropping maize ground reduces soil erosion, protects the soil profile and reduces nutrient leaching and one of the most reliable ways to establish a cover crop is by undersowing the growing maize crop.

There are now a number of options for maize growers within the Sustainable Farming Incentive including SAM2 multi-species winter cover crop, CSAM2 multi-species winter cover crop for growers entered into the expanded 2024 offer and SOH4 winter cover crops for maize, also within the expanded offer. All of these options can be undersown with the growing crop.

Agrovista’s range of maize undersowing and post-harvest mixtures offer flexibility around sowing, are fully compliant for the relevant SFI actions when grown in a way that meets the aims of the action and come backed by many years of research and experience.

TechniSward Soilmax

(SAM2, SOH4)

Hipast

Tall fescue plusTM (festulolium)  

40%

Tower

Tall fescue

50%

Donata  

Soft leaved cocksfoot

10%

TechniSward Soilmax Plus

(SAM2, CSAM2, SOH4)

Hipast

Tall fescue plusTM (festulolium)  

40%

Tower

Tall fescue

50%

Donata  

Soft leaved cocksfoot

10%

TechniSward Enviromax

(SAM2, SOH4)

Twymax  

Tetraploid late perennial ryegrass   

70%

Hispast

Tall fescue plusTM (festulolium)

20%

Donata

Soft leaved cocksfoot

10%

TechniSward Enviromax Plus

(SAM2, CSAM2, SOH4)

Twymax

Tetraploid late perennial ryegrass  

60%

Donata

Soft leaved cocksfoot

10%

Common Vetch  

30%

Fastmax

(SAM2, SOH4)

Fox

Diploid Italian ryegrass  

30%

Lofa

Festulolium

30%

Donata  

Soft leaved cocksfoot  

10%

  • Designed to be sown at the 4 to 6 leaf stage

  • Rapid early establishment slows as the maize canopy closes and then grows quickly postharvest to provide good winter cover

  • Capable of providing an early cut of silage the following spring

  • Sow at 7.5–12.5kg/ha

After Maize Cover Crop

(SAM2, CSAM2, SOH4)

Westerwolds ryegrass               

56%

Winter vetch

44%

  • A fast-establishing winter cover crop for sowing after maize is harvested

  • Provides quality late winter grazing or an early cut of high protein silage the following spring

  • Care should be take to avoid soil contamination if a silage cut is planned for the following spring. Topping the maize stalks is also advised if a silage cut is intended

  • Sow at 30-37kg/ha before mid-October

To download the Agrovista 2025 maize brochure click here.

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REF: AGV/SEED/1.1