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玉米地面覆盖技术的节水增产效果研究祁旭升，谢忠奎，杜文华（甘肃省农科院粮作所兰州７３００７０）玉米是黑河地区的主要粮食作物，常年播种面积在２５万亩以上，约占粮食作物播种面积的２５％。但黑河地区日照长，温差大，降雨稀少，蒸发强烈，加上该区水资源日趋紧张...
Research on Water-saving and Yield-increasing Effect of Corn Ground Covering Technology QI Xu-sheng, XIE Zhong-kui, DU Wen-hua (Gansu Academy of Agricultural Sciences, Gansu 730070, China) Corn is a staple food crop in Heihe Prefecture with perennial planting area above 250,000 mu 25% of the area. However, the Heihe region has a long sunshine, large temperature difference, scarce rainfall and strong evaporation, coupled with increasingly tense water resources in the area.