Einfluss der Leguminosen Ackerbohnen, Körnererbsen und Buschbohnen auf die Fruchtfolge

Summary

In organic farming legumes play an important role in crop rotation. Especially
instockless farming systems, grain legumes are preferred over clover-grass, which is
not cultivated any more. The purpose of the field trial was to test the previous crop
effect of field beans, grain peas and bush beans on the whole crop rotation. Control
crop was spring wheat. Follower crops were potato – winter wheat – barley. The
experiment was repeated consecutively for four years. In the first year yield of potato
following the cultivation of all legumes was on average significantly higher (14 %)
compared to previous crop spring wheat. No significant effect could be observed on
winter wheat during the second year. Yield of barley following the legumes in the third
year was significantly (22%) higher. No differences could be seen between the three
legumes. The positive effect of legumes was obvious during the whole crop rotation.
The nitrogen efficiency of field beans and grain peas was better than from bush beans.