... NPK composite fertilizer NPK复合肥 NPK fertilizer experiment 氮磷钾肥料试验 NPK Humate Compound Fertilizer 腐殖酸氮磷钾复合肥 ...
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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。
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.
采用“3414”肥料效应试验方案，研究了安徽省东至县油菜高产栽培的氮、磷、钾肥肥料效应，并建立了肥料效应函数模型。
Using 3414 fertilizer effect experiment, the effect of nitrogenous(N), phosphate(P), potash(K) fertilizer on rape yield in Dongzhi County was researched.
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