肥料运筹对强筋小麦西农979群体及产量效应

为了给强筋小麦生产提供施肥依据,以西农979为材料,采用不同的氮磷钾肥配施做底肥,研究其对群体、产量及其结构的效应。结果表明,高磷处理各生育期群体数量最高,磷肥对群体调节有显著作用,氮磷钾构成对不同生育期生物产量效应不尽相同,以越冬前生物量与成熟期关系最为密切。在各处理中,高氮处理的产量最高,比CK0增产33.1%,比CK增产19.1%。增施一定量的氮钾肥有明显增产效果。传统施肥水平下增施钾肥有显著的增产效果,增产幅度为5.8%,氮磷水平相同条件下适量增加钾肥可增产11.8%,钾肥过多增产效果不明显;磷钾水平相同的条件下适量增加氮肥可增产12.6%,氮肥过高则减产3.9%;氮钾水平相同的条件下增加磷肥产量变化不大。

Effect of Fertilizer Application on Yield and Population of Strong Gluten Wheat Xinong 979

The effects of fertilizer application on yield and population of strong gluten wheat of Xinong 979 were studied by using different combinations of N,P,K fertilizers.The results showed that application of different N,P,K fertilizers could significantly improve wheat population at different stage,the treatment of high P had the most significant effect on population of wheat and the P fertilizer was the best.The effect on the biological yield of wheat was different at different stage by different fertilizer application and there was closely related to biological yield of wheat between winter stage and mature stage.The highest yield was obtained in the treatment of high N fertilizer,with the 33.1% yield increase than CK0.There was more significantly effect on yield of wheat by increase N and K fertilizer.The yield was increased 5.8% than farmer fertilizer level by increase K fertilizer.The yield was increased 11.8% under some N and P fertilizer level by increase K fertilizer and there was not significantly effects on yield by high K fertilizer application.The yield was increased 12.6% under some P and K fertilizer by increasing suite N fertilizer and the yield reduced 3.9% by high N fertilizer.There was not increase on yield under some N and K fertilizer level by increase P fertilizer.