Leguminosen als Zwischenbegrünung im ökologischen Ackerbau mit konservierender Bodenbearbeitung

摘要

In large-plot field trials leguminous cover crops were examined under conservation tillage systems in organic farming conditions for their ability to suppress weeds. Cover crops were directly drilled after wheat harvest into the field. Suitability of cover crop was estimated by assessing their growth, soil coverage, biomass, biomass of weeds, mulch layer and yield of the main crop, which was either maize or sunflower. Fast growing cover crops, which had a high biomass, reduced weed growth most. Any cover crops grown reduced weed biomass significantly compared to the control without cover crop. Effects on the main crops will be determined after harvest in autumn 2010.