小麦是潼关的主要粮食作物,种植面积占耕地面积的59.06％,产量占粮食总产的51.06％。但水利条件较差,全县12万亩小麦,保灌面积仅2—3万亩,主要依靠天然降水。因此,研究解决小麦水分供需矛盾,是个很重要的问题。一、小麦的产量与水分水对植物是不可须臾离的。植物的养分吸收、运转,进行光合作用,建造机体都离不开水。水分供应情况对小麦产量的高低影响极大。近年来,根据有关资料,对潼关县1973—82年10年降水和小麦亩产进行分析,结果见表。 Wheat is the main food crop in Tongguan. The cultivated area accounts for 59.06% of the total cultivated area and the output accounts for 51.06% of the total grain output. However, poor water conditions, the county 12 acres of wheat, Paul irrigation area of ​​only 2-3 million mu, mainly rely on natural precipitation. Therefore, it is a very important issue to study and solve the contradiction between supply and demand of wheat moisture. First, the yield of wheat and water on the plant can not be separated. Plant nutrient absorption, operation, photosynthesis, the construction of the body can not do without water. The moisture supply has a huge impact on the level of wheat production. In recent years, according to the relevant data, Tongguan County, 1973 - 82 10-year precipitation and wheat yield analysis, the results shown in the table.