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15年定位监测结果表明：不同施肥结构对小麦、玉米产量有明显影响，各处理单产依次为：MNPK＞MNP＞MN＞NPK＞NP＞N＞M1）＞CK。长期不施肥区，土壤养分供应不足，产量逐年下降。基础地力贡献率平均为37．2％，肥料的增产贡献率为62.8％。在肥料中有机肥占25．2％，化肥占74.8％。在化肥中氮占64．6％，磷占27．2％，钾占8.2％。有机肥有明显改土培肥作用，有利土壤物理性改善，增强作物抗逆，提高产量的稳定性。施肥处理区土壤速效钾出现亏缺，在生产上应注意钾肥施用。
The result of 15 years of location monitoring showed that different fertilization structures had significant effects on the yield of wheat and maize. The yields of all the treatments were: MNPK> MNP> MN> NPK> NP> N> M1)> CK. Long-term non-fertilization area, insufficient supply of soil nutrients, production declined year by year. The contribution rate of basic geology was 37.2% on average, while that of fertilizer was 62.8%. Organic fertilizers accounted for 25.2% of fertilizer, fertilizer accounted for 74.8%. Nitrogen in fertilizer accounts for 64.6% of the total nitrogen, with 27.2% of phosphorus and 8.2% of potassium. Organic fertilizers have significantly improved soil fertility, soil physical benefit to improve and enhance crop resistance, improve the stability of the yield. Fertilization treatment area of available potassium deficiency, pay attention to the production of potassium fertilizer.