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近年来,我县棉农由过去棉花缺苗点补绿豆,发展为棉花绿豆间作,收到了良好的生态经济效益。据近二年125个点次的调查,间作棉花比纯作棉花每亩增产皮棉10斤左右,多收绿豆40—75斤,增值25—46元。棉花间作绿豆,如同棉田设油菜诱集带一样,可以招引瓢虫,防治棉蚜。据1982年6月中旬调查,间作绿豆的棉田,平均每株棉花有瓢虫5.1头,间作油菜的棉田,平均每株棉花有瓢虫3.2头,间作棉田可以比纯作棉田少打药3—4遍,每亩节省农药费用1.2元.绿豆不仅招引来瓢虫等害虫天敌,而
In recent years, our county cotton farmers from the past lack of Miao Miao make up mung bean, cotton mung bean intercropping for the development, received a good ecological and economic benefits. According to the survey of 125 points in the past two years, intercropping cotton yields about 10 kg of lint per mu of pure cotton than that of pure cotton and 40-75 kg of levied mung beans more than 25-46 yuan. Mung bean inter-cotton, cotton fields set up as a rape trap, you can attract ladybugs, cotton aphids control. According to a survey conducted in mid-June 1982, inter-crop mung bean cotton fields had an average of 5.1 ladybugs per cotton plant and an inter-crop rapeseed cotton field with an average of 3.2 ladybugs per cotton plant. Times, saving pesticide costs per acre 1.2 yuan.Mungbean not only attracted ladybugs and other pests natural enemies, and