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镇原县位于甘肃省庆阳市西南部,是陇东黄土高原沟壑区的一部分,境内海拔高度1 100~1 700m,年降水量450~580 mm,平均海拔1 456 m,年平均气温10.5℃,无霜期140~184天,≥10℃有效积温2 600℃,年平均日照时数2 800小时,属典型的偏干旱半湿润旱作雨养农业区,适宜种植西瓜、冬油菜。近年来,随着地膜覆盖旱作农业技术的推广应用,镇原县积极探索新型高产高效栽培模式,其中西
Located in the southwestern part of Qingyang City, Gansu Province, Zhenyuan County is a part of the Gully Region of Longdong Loess Plateau with an altitude of 1,100-1,700m and an annual precipitation of 450-580 mm with an average elevation of 1 456 m and an annual average temperature of 10.5 ° C , Frost-free period of 140 to 184 days, ≥ 10 ℃ effective accumulated temperature of 2 600 ℃, the average annual sunshine hours of 2 800 hours, is a typical partial dry and dry rain for rain farming areas, suitable for planting watermelon, winter rape. In recent years, with the popularization and application of dry-farming techniques covering plastic mulching, Zhenyuan County actively explores new high-yield and high-efficiency cultivation modes, in which the west