玉米地膜栽培(简称地膜玉米),自1987年引进毕节地区试验、示范以来,发展很快,从1990年起,每年稳定在50～60万亩。大面积亩产平均为350～430公斤,亩增产为120～150公斤。地膜玉米是一项高投入、高产出、经济效益明显的栽培技术。通过改进栽培技术,玉米产量的提高还有较大的潜力。为此,自1990年开始,我们以农业系统工程的原理 Cultivation of corn film (referred to as plastic film maize), since 1987 the introduction of Bijie regional trials, demonstration, has developed rapidly, from 1990 onwards, stable at 50 to 60 acres. Large-scale average yield of 350 to 430 kg per mu, mu yield 120 to 150 kg. Mulching corn is a high input, high yield, economic efficiency obvious cultivation techniques. By improving cultivation techniques, there is great potential for increasing corn production. To this end, since 1990, we have adopted the principle of agricultural systems engineering