论文部分内容阅读
2004～2005年,在云南通海县设置甜玉米与甘蓝和辣椒间作试验小区,研究了甜玉米与蔬菜间作种植对作物主要病虫害的控制作用。结果表明:玉米与甘蓝以2∶4带型间作种植后,玉米锈病、玉米小斑病、甘蓝霜霉病平均病情指数均低于其它种植模式、小菜蛾虫口密度也明显低于其1∶4带型及其它种植模式。玉米与辣椒以2∶4带型间作种植后,间作辣椒霜霉病、蚜虫及棉铃虫虫口密度均低于辣椒单作田。由此,玉米与甘蓝、辣椒以2∶4带型种植对玉米、甘蓝和辣椒主要病虫害具有明显的控制作用,可用于无公害蔬菜的栽培管理。
From 2004 to 2005, a pilot plot of sweet corn and cabbage and pepper was set up in Tonghai County, Yunnan Province to study the control effect of intercropping sweet corn and vegetables on the main pests and diseases of crops. The results showed that the average disease index of corn rust, maize leaf spot and downy mildew was lower than that of other planting patterns when maize and cabbage were intercropped in 2: 4 intercropping system. The population density of diamondback moth was also significantly lower than its 1: 4 Belt and other planting patterns. After intercropping with corn and pepper in intercropping system of 2: 4, intercropped pepper downy mildew, the density of aphids and bollworm was lower than that of pepper alone. Thus, corn and cabbage, pepper with 2: 4 banding on corn, cabbage and peppers have a significant role in the control of pests and diseases, can be used for pollution-free cultivation and management of vegetables.