The rational fertilization areas in different precipitation years were put forward, and analysis on the fertilization plan for the maximumyield and optimum economic effect was made.
并提出了不同降水年型的合理施肥范围,分析了最大和最佳产量的施肥组合及其经济效益。
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The rational fertilization areas in different precipitation years were put forward, and analysis on the fertilization plan for the maximumyield and optimum economic e...