Options after Maize
Optimization of ground for production of extra forage, whilst retaining nutrients, boosting soil organic matter and reducing soil erosion over winter. Follow maize with a winter cereal Forage Rye - very hardy, capable withstanding severe frost IRG - quick to establish, high yields for grazing or conservation Westerworlds - similar characteristics to IRG, good at reducing nitrogen leaching over winter. Cover crop - choices can be limited by cooler soil temperatures, winter hardy species should be chosen Stubble turnips/forage rape - latest sowing up to mid- September If a crop post-harvest is unlikely due to harvest date, and likely conditions, an undersown crop could be a good option. Under sow at 4-8 leaf stage – timing will depend on weed burden Sow at a rate of 20-25kg /ha Drill rather than broadcast to increase success of establishment. Under sowing:
Key benefits to undersowing:
Reduces bare soil – reducing risk of run off and erosion Holds the soil together during harvest, allowing better travel, less risk of compaction Can produce an additional forage crop overwinter/early spring Creates cover if a late harvest is required or risk of not getting a crop in afterwards Adds diverse root structuring and can provide organic matter if incorporated Water holding capacity increased Can count towards to SFI winter cover The key rule for undersown maize is the same as that for any cover crop. The performance of the main crop should not be compromised in any way by the undersown crop. Sowing too early will cause competition with the maize and issues with herbicides – MGA, 2022.
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