Kontrolle bodenbürtiger Krankheiten des Fußkrankheits-komplexes an Erbsen mit Komposten

Summary

Soil borne diseases are highly important in organic grain legumes. Suppressive composts are an important measure to control soil borne pathogens in different crops. So far, reports on the foot rot causing pathogens in peas such as Fusarium spp., Phoma medicaginis, Mycospherella pinodes are rare. In our study Phoma medicaginis, Pythium ultimum and Fusarium avenaceum were significantly controlled with yard waste composts demonstrating the principal potential of composts to suppress these diseases. However, the main challenge for organic farmers are to transfer these results to the practise in organic farms. In a field trial with peas 5 and 18 t/ha of compost were applied as broadcast or as strip application while sowing peas with a new developed sowing machine with special tools for strip application of composts. It was shown that the strip application supplying high amounts of composts suppressed the foot rot complex of peas significantly in comparison to the broadcast or the un-amended control plots. Strip application of composts were superior over the broadcast application throughout the season.