当归/万寿菊多样性种植控制当归根结线虫病的田间效应评价

ngelica sinensis root-knot disease, caused by Meloidogyne incognita, is the most destructive disease across Angelica sinensis production regions. To achieve the purpose of angelica root-knot control, three of inter-planting with marigold scheme was designed and put into practice in field, and their performance was evaluated as well. Disease investigation and analysis results showed that all inter-planting treatments could reduce disease accidence. Specifically, A5 (two rows of angelica inter-planting on both sides of two rows of marigold) and A3 (one rows of marigold inter-planting on both sides of four rows of angelica) obtained control effect 65.2% and 45.5% respectively. However, A5 could hinder cropping practice so as to be refused for adoption by angelica grower. Angelica in inter-planting patterns achieved higher theoretical yield than mono-cropping (p<0.05). Typically, A3 got the highest yield (713.5 kg/666.7 m2) among all models, with yield increase 17.8% and significant difference comparing to mono-cropping (p<0.01). Further, all inter-planting individuals contribute to LER, and A3 treatment obtained the highest LER 1.7 and the highest output value with 15% extra value to mono-cropping.