Establishment, effect and residual effect of catch crops in winter cereals

azote brassica rapa catch cropping cereal crops crop yield cultivo intermedio cultivos de cereales cultivos de invierno culture d'hiver danemark denmark dinamarca festuca rubra hordeum vulgare lolium multiflorum lolium perenne nitrogen nutrition des plantes phacelia plant nutrition raphanus sativus rendement des cultures rendimiento de cultivos secale cereale sinapis alba trifolium pratense triticum aestivum winter crops