Leistungen von Kleegras in Abhängigkeit des Saatzeitpunktes und der Nutzung in einem Dauerfeldversuch

Summary translation

Grass-clover swards should be used as effectively as possible in organic farming due to their importance for weed control and N-fixation in the crop rotation. We examined the seeding time (undersowing in the preceding crop cereal in spring or sowing after harvest in early autumn) and the utilization (cutting or mulching) in a long-term trial. Undersown grass-clover swards yielded 22 % higher than sown in early autumn. Furthermore, the quality in the first utilization in spring was higher for undersowing due to higher proportions of legumes and lower proportions of weeds. However, undersowing may not be recommended if docks or couch grass occurred. In comparison to cutting, mulching yielded 16 % less and promoted the proportion of grass and weeds. Utilization did not affect the quality of grass-clover swards.