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通过多点田间氮肥、磷肥和钾肥的对比试验,摸清温泉县常规施肥下主要农作物氮肥、磷肥和钾肥的利用率现状和测土配方施肥提高氮肥、磷肥和钾肥利用率的效果。小麦肥料利用率田间试验表明,测土配方施肥较常规施肥增产38.01 kg/666.7m2,增产率12.23%;氮肥、磷肥、钾肥利用率分别提高6.36%、35.73%、55%。
Through the comparative experiments of nitrogen, phosphate and potash fertilizers in the field, the effect of nitrogen, phosphorus and potash fertilizer utilization of main crops under conventional fertilization in Wenquan County and the application of soil testing and formula fertilizers to improve the utilization rate of nitrogen, phosphate and potash fertilizers were investigated. The results showed that soil fertilization increased 38.01 kg / 666.7m2 and yield increased 12.23% compared with conventional fertilization. The utilization rates of nitrogen, phosphate and potassium increased by 6.36%, 35.73% and 55% respectively.