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田间试验结果表明，化肥对小麦的效应为氮＞磷＞钾，氮的最大作用期在分蘖至拔节期，磷在苗期至分蘖期，钾则在苗期。氮、钾配施能明显地促进小麦的生长发育，从而明显地提高产量。高氮情况下，配施磷钾的效果更优。含氯化肥不宜穴施，以防土壤局部含氯离子浓度过高而影响小麦的生长发育。
The results of field experiments showed that the effect of chemical fertilizers on wheat was nitrogen> phosphorus> potassium, the maximum period of nitrogen was at tillering to jointing stage, phosphorus was at seedling to tillering stage, and potassium was at seedling stage. The combination of nitrogen and potassium can obviously promote the growth and development of wheat, thus obviously increase the yield. High-nitrogen case, with phosphorus and potassium better. Chlorinated fertilizer should not be applied to prevent the local soil chloride ion concentration is too high and affect the growth and development of wheat.