苏北潮盐土地区小麦氮磷钾适宜用量及施用效果

Dptimal Application Amount and Fertilizer Effects of N, P, and K on Wheat in the Alluvial-Salty Soil of North Jiangsu Province

应用2006-2011年小麦"3414"肥料效应试验结果,分析苏北潮盐土地区小麦N、P、K适宜用量及施用效果。结果表明,小麦施用N、P、K均增产增收,其效果为NPK>N>P>K;推荐本地区小麦的氮(N)、磷(P2O5)、钾(K2O)的总施用量分别为270 kg/hm2、75 kg/hm2、60 kg/hm2,P、K全部基施;基施的氮(N)、磷(P2O5)、钾(K2O)比例为1.00∶0.51∶0.40。

Based on the data of "3414" fertilizer experiments from 2006 to 2011,the effects of N,P,and K fertilizers on wheat and the optimal application amount in the alluvial-salty soil of north Jiangsu province were studied.The results showed that application of N,P,and K fertilizer increased the yield of wheat,and the increase degree was NPK>N>P>K.According to the fertilizer effect and the actual production,the recommendation application amounts of N,P2O5,and K2O were 270,75,and 60 kg / hm2 respectively,and P and K fertilizers were completely used as basal dressing.N∶P2O5∶K2O in basal fertilizer was 1.00∶0.51∶0.40.