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由于各地春小麦地区自然地理气候条件的不同,因而生长期长短不同,一般田113—149天,各个发育阶段的耗水量存在一定的差异,但是其耗水规律不变。一般是幼苗期少,分叶、拔节增多,抽穗开花最多,灌浆期逐渐减少。从耗水规律和耗水量看,小麦对水份的需要是非常敏感的。必须适时适量的灌溉。如武威县金羊公社601.6亩小麦获得平均亩产1,042斤的丰产经验,是灌水满足了作物生理的需水要求,在各发育阶段共进行了4次灌水;第一次水在分叶期即播后40—45天进行,
Due to the different geographical and climatic conditions of spring wheat in different regions, the growth period varies from 113 days to 1949 days. There is a certain difference in water consumption at all developmental stages, but the water consumption is not changed. Generally less seedling stage, leaves, jointing increased, heading flowering, grain filling gradually reduced. From the perspective of water consumption and water consumption, the demand of wheat for water is very sensitive. Must be timely and appropriate irrigation. For example, 601.6 mu of wheat in Wuyang County Jinyang Commune has obtained an average yield of 1,042 kg per mu, which is a result of irrigation. It meets the water requirements of crop physiology and has been infused for 4 times at all developmental stages. 40-45 days after sowing,