optimum irrigation mode 优化灌溉模式
optimum irrigation norm 最优灌水定额
optimum irrigation index 灌水控制上限
optimum irrigation methods 最佳灌溉组合
optimum irrigation decision 优化灌溉决策
optimum irrigation scheduling 灌溉制度优化
optimum irrigation parameters 最优灌水参数
The model was used to determine optimum irrigation amount for obtaining maximum net return.
以净效益最大为原则，用所提出的模型研究了不同灌水均匀系数时的最优灌水量。
The case study of irrigation management during the winter wheat growing season at Zhengzhou eco-site in 1991, 1992 was conducted to analysis the optimum irrigation scheduling.
以郑州冬小麦生长季水分管理为对象，对当地1991,1992年冬小麦生长季优化灌溉制度决策进行了实例分析。
The"311-A"regression design was adopted to study the optimum ratio of N, P and K fertilizers on maize field of Yellow River Pumping Irrigation District in Cheng Xitan, Yanchi Ningxia.
运用“311-A”试验设计，探讨宁夏盐池县城西滩扬黄灌区玉米氮、磷、钾肥料的最佳配比。
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