玉米地膜覆盖栽培是一项蓄热增温、节水保墒、发挥晚熟高产品种增产潜力的技术措施,具有增产效果稳定、经济效益高、适应范围广等特点,是北方冷凉干旱地区大幅度提高玉米产量的突破性技术。近年来,这项技术的推广面积逐年扩大,已成为玉米高产、高效栽培的新途径。 The plastic film mulching cultivation of corn is a technical measure of increasing the yield potential of late-maturing and high-yielding varieties by accumulating heat and warming, saving water and preserving soil moisture, has the characteristics of stable yield, high economic benefit and wide adaptability, which is greatly enhanced in cold and dry areas in the north Breakthrough technology in corn production. In recent years, the area of ​​popularization of this technology has been expanded year by year, and it has become a new way of high-yielding and efficient cultivation of corn.