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Bt基因抗虫棉与瓜、菜、薯间作,不但提高了棉田的经济效益,同时还提高了农田环境效益,克服了普通棉花与瓜、菜、薯间作,治虫施药多,瓜菜薯污染严重的弊病,保护了农田有益昆虫。1、经济效益1996—1997年,在武清县城关镇柳林屯,无梁庙、河西务乡韩庄等村镇,示范35hm~2,抗虫棉与土豆、甘兰、西瓜间作,与非抗虫棉中棉16号间作棉田进行比较示范,结果抗虫棉皮棉产量为1410公斤/hm~2,比中棉16号皮棉产量1357.5公斤/hm~2增52.5公斤皮棉,增幅为3.86%。皮棉按每公斤14元计算,每公顷增
Bt transgenic cotton and melon, vegetable and potato intercropping not only improve the economic benefits of cotton field, but also improve the environmental benefits of farmland, to overcome the common cotton and melon, vegetables, potato intercropping, pest control and pesticide pollution Serious ills protect the farmland useful insects. 1. Economic Benefit From 1996 to 1997, demonstrating 35hm ~ 2 in the villages and towns of Liulin Village, Chengguan Town, Wuqing County, Liangzhu Temple without Liang Temple, and Hanzhuang Township, Hexi Township, demonstrating 35hm ~ 2, intercropping cotton and potatoes, The results showed that the yield of pest-resistant cotton lint was 1410 kg / hm ~ 2, and the increase rate was 3.86% compared with the increase of 5257.5 kg / hm ~ 2 cotton lint yield of 1357.5 kg / hm ~ 2. Lint per kilogram 14 yuan per hectare increase