Allelopathic effect of Steura chamaejasme decomposing in soil on Onobrychis viciifolia

The allelopathic effect of Steura chamaejasme decomposing in soil on Onobrychis viciifolia was studied in a growth chamber in pot culture. The result showed that the root and stemleaf of Steura chamaejasme inhibited dry weight of stemleaf, leaf area and the height of Onobrychis viciifolia. The inhibiting effect was stronger with the increase of amount of Steura chamaejasme. The inhibiting effect of root was stronger than that of stemleaf, but no significant effect on cell permeability of Onobrychis viciifolia was found.