万寿菊-当归轮作与间作种植对当归根结线虫的防控效果

he damage of root-knot nematodes (Meloidogyne spp.) has been seriously affected the production of the Chinese Angelica[Angelica sinensis (Oliv. ) Diels] in Zhanyi, Yunnan. In order to explore the safe and effective ways of control this disease，we used the nematode-antagonism during 2012 to 2013 in Zhanyi，to evaluate the potential usage of planting marigold with Angelica on management of root-knot nematodes. At the same time, we investigated the population dynamics of root-knot nematodes, disease index and yield of Angelica. The results showed that both the rotation and intercropping models could effectively control root knot nematode disease. Control effect of crop rotation reached 49.53% and the value of two years' yields was 81769.20yuan per hectare；and the row intercropping control effect got 27.27% - 36.36%, the maximum value of the yield could achieve 42674.55 yuan per hectare. By comparing the field actual operations, the capital investment, and the control effect of two planting models, it showed that the rotation cropping model was more suitable to control the root-knot nematode disease on Chinese Angelica.