Maintenance work on the ZORA databases is scheduled for Wednesday 22 May 2019 from 20:00-22:00. During this period ZORA and JDB will not be available. Thank you for your understanding.
Vertès, Françoise; Abiven, Samuel; Loiseau, P (2004). Effects of grassland cultivation and ley-arable rotations on soil quality. In: Conijn, J G; Taube, F. Grassland resowing and grass-arable crop rotations. Consequences for performance and environment. Wageningen: Plant Research International, 27-40.