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针对半干旱冷凉区玉米生产的制约因素——水分和温度，在定西地区布设了微地型种植方法、覆盖材料和补灌时期的综合试验研究。结果表明，坑种和沟种都能比平作接纳更多的降水，２３．６ｍｍ的降雨，使坑种０ｃｍ～１００ｃｍ的土壤贮水量增加了１９．４ｍｍ，沟种的增加了１８．４ｍｍ，平作的仅增加了８．５ｍｍ，并且能防霜冻，提高玉米出苗率。地膜覆盖能使玉米苗期０ｃｍ～１０ｃｍ的土温升高０．９℃～１．２℃。大喇叭口期补灌６０ｍｍ，使产量提高１４．６％～３２．７％；坑种盖地膜大喇叭口期补灌是当地玉米高产的最佳组合，沟种盖地膜大喇叭口期补灌的栽培模式，方法简单易行，又具有显著的增产作用。沟种地膜覆盖效果明显优于对照。秸秆覆盖不宜用于半干旱冷凉区玉米生产。
Aiming at the restrictive factors of corn production in semi-arid cool area-moisture and temperature, a comprehensive experimental study on micro-planting methods, covering materials and recharge period was conducted in Dingxi area. The results showed that both pit type and ditch type could receive more precipitation than horizontal cropping. The rainfall of 23.6mm increased the soil water storage of 0cm ~ 100cm in pit type by 19.4mm and the increase of ditch species by 18.4mm, Only increased by 8.5mm, and can prevent frost, improve the emergence rate of corn. Plastic film mulching can make corn 0 cm ~ 10cm soil temperature increased 0.9 ℃ ~ 1.2 ℃. Large bell mouth filling 60mm, the output increased by 14.6% ~ 32.7%; pit planting plastic cover large bell mouth filling is the best combination of local corn yield, furrow cover the big bell mouth filling period Cultivation methods, the method is simple and easy, but also has a significant increase in production. Ditch species mulching effect was significantly better than the control. Straw cover should not be used for semi-arid cold area corn production.