油菜与蚕豆间作模式对油菜菌核病危害及产量的影响

Effects of rape and faba bean intercropping on Sclerotinia stem rot and yield

通过两年定点试验,研究了油菜与蚕豆间作不同行比处理对油菜菌核病发病情况、主要经济性状和产量的影响。结果表明:与油菜单一种植模式相比,油菜与蚕豆间作使油菜菌核病病情指数及发病率降低,油菜与蚕豆总产量及经济效益提高。其中,油菜与蚕豆2:2行比处理的油菜菌核病发病最轻,两年发病率分别为9.16%和11.90%,病情指数分别为5.90和7.14,总产量及经济效益最高,两年平均分别为2 641.1 kg/hm^2和12 546.6元人民币/hm^2;其次是3:3行比。

The effects of rape and faba bean intercropping on the occurrence of Sclerotinia stem rot, main economic characters and yield of rape were studied through two years＇ fixed-point experiment. The results showed that compared with single cropping of rape, rape and faba bean intercropping reduced the disease index and incidence of Sclerotinia stem rot,and increased the total yield and economic benefit of rape and faba bean. The Sclerotinia stem rot incidence of rape and faba bean row ratio 2 ： 2 treatment was the lowest, the two-year incidence was 9. 16% and 11.90% respectively,and the disease index was 5. 90 and 7.14 respectively. The total yield and economic benefit were the highest,with a two-year average of 2 641. 1 kg/hm%2 and 12 546. 6 yuan/hm%2 respectively. The following was rape and faba bean row ratio 3： 3 treatment.