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腐熟作物秸秆与化肥氮磷钾配施对小麦有明显著增产效应 ,产量表现依次是MNPK >MNP >NPK >MN >NP >N >M >ck。化肥是小麦增产的主导因素 ,氮磷钾增产贡献率氮 >磷 >钾。腐熟秸秆与氮磷钾间存在正联应效应。腐熟秸秆增产效果主要是其携入的氮磷钾所致
The combined application of NPK fertilizers and straw NPK fertilizers on wheat significantly increased the yield of wheat. The yield of MNPK> MNP> NPK> MN> NP> N> M> ck, respectively. Fertilizer is the dominant factor of wheat yield, the contribution of nitrogen, phosphorus and potassium yield nitrogen> phosphorus> potassium. There is a positive correlation between decomposed straw and NPK. The effect of increasing the yield of decomposed straw is mainly caused by the NPK brought in by it