【摘要】 针对宁南半干旱偏旱区旱作农田夏熟作物所需水分严重缺乏的实情，在平整不产流农田上，通过沟垄径液集水蓄墒措施，在干旱年份中每年可向作物种植区增加水分供应５７．４ｍｍ～２７２．７ｍｍ，采用起垄覆膜措施可使夏熟作物休闲蓄墒期（８～２月）增加土壤蓄水量２８．６ｍｍ～４４．７ｍｍ，增产率２０％～３３２％。采用起垄覆膜蓄墒措施配合春小麦套种地膜马铃薯种植方式增产效应和经济效益较好更多还原

【Abstract】 In order to release the severe water shortage for summer crops, ridge building method is used to harvest water on the dryland field without run off in semi arid areas of South Ningxia. The results show: the amount of water supply to crop plot can increase 57.4～272.7 per year and the amount of soil water storage during fallow period before spring wheat planting with the ridge mulched can increase 28.6mm～ 44.7 mm. The crop yield increases by 20%～332% during drought years. The mulched ridge combining spring wheat intercropping with potato can get higher crop yields and good economic benefits.更多还原