Getting land back into production quickly after a maize harvest can be the difference between having a crop for the spring that can be utilised or having expensive land out of production for a period. The sowing of a grass ley after maize can be extremely profitable as long as the correct choice is made.
If looking for a forage crop to establish after maize, then the choice of species is crucial. Late sowing can be difficult for non-aggressive options, including clovers. Aggressive, fast establishing grasses are best as they will get away well before winter sets in. Westerwolds grow in low temperatures and can provide a useful early bite in March or a first cut in mid April.
If looking for an option that will last longer than one year, then Italian ryegrass is a good choice. This species will give similar yields to Westerwolds, but offers the additional benefit of lasting for two years if required. Both of these can be used alone or planted in a mix.
Either of these ryegrasses should be drilled or broadcast as soon as possible, and before the middle of October. If looking for a green manure then a rye and vetch mix are a late season option which will give excellent overwinter cover and improve soil nutrient and organic matter levels dramatically. These can be drilled and left in till late spring. As bare soil is vulnerable to soil erosion and nutrient leaching, planting the right species now is definitely the best way to prepare for winter.