“山西黄土高原半干旱地区、旱作麦、棉面积占全省总耕地面积70%以上,实属靠天然降水的“雨养农业”,麦棉产量常常具有相对的稳定性和年际间的波动性。为实现旱地麦棉稳产高产,应千方百计提高自然降水的利用效率,建造“土壤水库“,走旱作节水农业的道路。旱垣麦棉全年全覆盖沟垄种植技术,即采用化学(地膜)和生物(秸秆)全年交替覆盖,通过整地起垄、条带种植、沟垄覆盖、间作套种形式,最 “In the semi-arid region of Shanxi Loess Plateau, dry farming of wheat and cotton covers more than 70% of the total cultivated land in the province, which is due to” rain-fed agriculture “by natural precipitation. The yield of wheat and cotton often has relative stability and interannual In order to realize stable and high yield of wheat and cotton in dryland, we should do everything possible to improve the utilization efficiency of natural precipitation, build ”soil reservoir" and take the road of water-saving agriculture for dry farming. Chemical (plastic film) and biological (straw) alternate cover throughout the year, through land preparation ridging, strip planting, furrow cover, intercropping intercropping forms