From the yield, supreme yield was the treatment under nitrogenous acid phosphorus acid potassium fertilizer, second were phosphorus and phosphorus acid potassium fertilizer, potassium fertilizer have little production.

• 从经济产量结果看，氮磷钾肥配施的产量最高，其次为单施磷肥和磷钾肥配施，单施钾肥增产效应不大。