Cover crops, N uptake, Nitrate concentration, Maize yield
Red clover, white clover, festulolium, ryegrass, nitrogen balance, surplus
Cattle slurry, Grass-clover ley, Soil C sequestration, Soil organic N storage
Agroecological modelling, nitrogen leaching, catch-crop, cereal crop, crop rotation
Carbon modelling, process-based models, R package, independent validation