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“氮—磷—复合肥”是一种近10年来在实际生产中出现的较为普遍的施肥模式。这种施肥模式较“氮—磷”施肥模式有进步,但仍会造成氮磷过量而钾不足,加上目前复合肥的质量难以保证,更易造成氮过量而钾严重不足。为合理施肥,有必要改变我国在农业生产上尽量避免施用氯化钾作为钾肥的不恰当做法,确保钾肥的供应,加大对化肥尤其是钾肥质量的监管力度。
“Nitrogen-Phosphorus-Compound Fertilizer ” is a more common mode of fertilization that appears in actual production in the past 10 years. This mode of fertilization than “nitrogen - phosphorus ” fertilization mode has improved, but will still cause excessive nitrogen and phosphorus and potassium deficiency, coupled with the current quality of the compost is difficult to guarantee, more likely to cause nitrogen excess potassium serious shortage. In order to rationally fertilize, it is necessary to change our country’s improper practice of avoiding potassium chloride as a potash fertilizer in agricultural production, to ensure the supply of potash fertilizer and to strengthen the supervision on the quality of fertilizers, especially potash fertilizer.