Allelopathic Effects of L. Var. Sch. Bip. on the Tuber Sprouting and Seedling Growth of L

L. var. Sch. Bip. () had been found capable of excluding L. () from its vegetation in fallow fields. Both allelopathy and competition of were able to limit the growth of , but this has not been extensively investigated. To verify the two effects of on management, density-dependent experiments and interspecies competitions with the application of activated carbon were conducted. The effects of soil and its residues on the reproduction of were also evaluated. The results showed that the residues of reduced the growth (54-61% of control) and tuber number (58-71% of control) of in the 3 plants pot treatment but not in higher density treatments. In the interspecies competition, exhibited an allelopathic but not competitive effect on when activated carbon was absent. tuber sprouting was significantly suppressed when sowed in the soil. Likewise, residue mulch inhibited the plant density by 87% as compared to natural-occurring residue mulch in the field. This study revealed that might have potential for use as a cover plant and allelopathic mulch to control in the agroecosystem.