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根据中国科学院禹城综合试验站蒸渗仪所测的作物耗水量资料,简要分析了山东省禹城市冬小麦、夏玉米的耗水量及其耗水过程。该市冬小麦平均耗水量为482.2mm,水分利用率为11.01kg/(hm2mm);夏玉米平均耗水量为398.9mm,水分利用率为19.79kg/(hm2mm)。文中还研究了公顷单产为6000kg的冬小麦、公顷单产为9000kg的夏玉米的高产灌溉制度及其管理。该市冬小麦高产灌溉定额为360mm,应灌播前或越冬水,返青或起身水、拔节水、抽穗水和灌浆水;夏玉米高产灌溉定额为150mm,应灌苗期水、开花水和灌浆水。
According to the data of crop water consumption measured by the lysimeter of Yucheng Comprehensive Experimental Station, Chinese Academy of Sciences, the water consumption and water consumption of winter wheat and summer maize in Yucheng, Shandong Province were briefly analyzed. The city’s average winter wheat water consumption was 482.2mm, water use efficiency of 11.01kg / (hm2mm); summer corn average water consumption of 398.9mm, water use efficiency of 19.79kg / (hm2mm). The paper also studied the high-yield irrigation system and its management of winter maize with a yield of 6,000 kg ha, summer maize yield of 9,000 kg ha. Winter wheat high-yield irrigation quota of the city 360mm, should be pre-sowing or overwintering, rejuvenation or get up, jointing, heading and grouting water; summer corn high yield irrigation quota of 150mm, should be injected seedling water, flowering water and grouting water .