对地膜覆盖在临汾地区小麦生产中战略地位的再认识

Recognition of Strategic Status for Thin-Plastic-Covered Wheat in Linfen District

临汾地区小麦生产由于受土地瘠薄、干旱、寒冷等因素限制,产量没有大的突破。近两年,对小麦进行了广泛的地膜覆盖试验、示范,实践证明了小麦实行全生育期地膜覆盖,具有明显的增温、保墒、节水、改土作用,可使生育期提早,单株生长健壮,成穗率提高。可使小麦生产丰年高产、旱年稳产、增产25％以上;解决小麦与前茬争时、争地矛盾、实现夏、秋双季高产;减少浇水次数和浇水量,扩大浇水面积,实现节水增效。

Due to the restriction of drought poorness and coldness,there isn't a large breakthrough in wheat output in Linfen district, we have studied and demonstrated widely on thin-plastic-covered wheat. The practice showed that this has obvious advantages of adding temperature, preserving soil moisture, saving water and improving soil. It can also cause the plant mature in advance, single plant grows health and the seed-growing rate can be improved. All of which result is:high output in good year, stable output in drought .increasing the output over 25%; solved the problems of the time and soil with the previous crop, achieved the aim of high output in Summer and Autumn; reduced the watering times and amount .enlarged the watering area, thus saved the water and increased the efficiency.