旱作灌溉农业在陕西占有举足轻重的重要地位,而关中灌区又是全省商品粮、棉、油、菜的重要生产基地。在旱象严重的1985年关中灌区粮食种植面积823.21万亩,粮食总产量达到338.7万吨,平均亩产411.5公斤,面积占全省粮食耕地面积的18.5％,产量占全省粮食总产的35.7％,高出全省粮食平均产量近200公斤。因此如何保证关中灌区旱作高产,是关系 Dry irrigated agriculture plays an important and pivotal role in Shaanxi, and Guanzhong irrigated area is also an important production base for the province’s grain, cotton, oil and vegetables. In the serious drought in 1985 Guanzhong irrigation area 823.21 hectares of grain acreage, the total grain output reached 3.387 million tons, the average yield of 411.5 kilograms, the area of ​​the province’s arable land area of ​​18.5%, the output of the province’s total grain output of 35.7% , Higher than the province’s average grain output of nearly 200 kilograms. So how to ensure Guanzhong irrigated area high yield dry farming is the relationship