论文部分内容阅读
京郊地区栽培西瓜历史悠久。自地膜覆盖技术推广以来,亩产5000公斤千元的地块也比较普遍。据调查,大多数瓜农在现有条件和技术水平的情况下西瓜亩产在2500—3000公斤,产值500—600元左右。在普通的条件下,在地膜覆盖的瓜田中,实行西瓜、花生、菜豆和冬小麦的间作套种,与其他布局方式相比,可使复种指数提高到283％,亩产值可稳得千元。同时既能充分地利用集约化瓜田的水、肥、光热、地膜及
Beijing suburbs of watermelon cultivation has a long history. Since the promotion of plastic film mulching technology, 5000 kg per mu of land is also more common. According to the survey, most melon farmers in the existing conditions and technical level of watermelon in the case of 2500-3000 kilograms per mu, output 500-600 yuan. Under normal conditions, the interplanting of watermelon, peanut, kidney bean and winter wheat in melon-covered melon fields can increase the multiple-cropping index to 283% compared with other layouts and the yield per mu can reach as much as RMB1,000. At the same time can make full use of intensive melon fields of water, fertilizer, light and heat, plastic film and