| A field experiment is conducted which focuses on different aspects of crop rotations for cereal production in organic farming. Three factors are included in the experiment in a factorial design: A) fraction of grass-clover and pulses in the rotation (crop rotation), B) catch crop (with or without catch crop or bi-cropped clover), and C) manure (with or without animal manure applied as slurry). The experiment is conducted at four locations (Jyndevad, Foulum, Flakkebjerg and Holeby), representing different soil types and climate regions in Denmark. There are 64 experimental plots at both Jyndevad and Foulum, 72 at Flakkebjerg and 12 at Holeby. In autumn 1996 soil samples were taken for soil chemical and physical characterisation. The soil horizons were... |
