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本文研究了晋南麦区平川水地土壤生态条件下不同氮磷钾施肥比例的增产增效情况。结果表明,氮磷钾肥缺一不可,任何一种肥料的零施用, 都会较大地影响产量的增加,且不同氮磷钾施肥比例对小麦增产有显著差异。在该试验的14个处理中,以N2P2K3即每666.7m212kgN、8kgP2O5、12kgK2O 的施肥比例对小麦增产增效最佳。
In this paper, the yield and efficiency of different N, P and K fertilization ratios under soil ecological conditions in Pingchuan water area of Jinnan wheat field were studied. The results showed that nitrogen, phosphorus and potassium fertility were indispensable. Zero application of any kind of fertilizers would greatly affect the increase of yield, and different proportion of N, P and K fertilizer had significant difference on yield increase of wheat. In the 14 treatments of this experiment, the yield increase efficiency of wheat with N2P2K3, ie, 666.7m212kgN, 8kgP2O5, and 12kgK2O, was the best.