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玉米地膜覆盖栽培,是在玉米生育期间,地面覆盖一层塑料地膜,以利增温、保墒、保肥,达到全苗壮苗,早熟高产的一项新的栽培技术。能减缓高山早春低温、阴雨寡照和秋风等不良气候对玉米的危害,尤其能使杂交玉米上高山,扩大杂交玉米的社会效益。我区1982年引进试验以来,累计覆盖10,531亩。综合261个验收点的结果是:“两增加一好,综合效益高”。即平均单产增186.8公斤,亩平均纯收入增加38.32元,经济性状好,综合效益高。根据四年试验示范资料,拟定栽培技术“三关二十条”,供大面积示范推广参考。
Corn plastic film mulching cultivation is a new cultivation technique that during the growth of corn, a layer of plastic film is covered on the ground to facilitate warming, preserving soil moisture and preserving fertilizer so as to achieve full seedling strong seedling and early maturity and high yield. Can slow down the harmful effects of early spring low temperature, rainy season, autumn weather and other bad weather on maize, in particular, make hybrid maize on the mountain and expand the social benefits of hybrid maize. Since the introduction of the test in 1982, our district has totally covered 10,531 mu. A total of 261 acceptance point results are: “two to add a good, comprehensive high efficiency.” That is, the average yield increased by 186.8 kg, and the average net income per mu increased by 38.32 yuan. The economic traits were good and the comprehensive benefits were high. According to four years of experimental demonstration data, to develop cultivation techniques “three 20” for large-scale demonstration of promotion reference.