氮磷钾肥配施对大豆产量及性状的影响

Effect of N,P and K Combined Application on Yield and Characters of Soybean

为确定氮磷钾肥配施对平豆2号产量及品质的影响,试验设置了11个处理,通过缺素肥料试验、经济学性状及产量效益综合分析,结果表明:氮磷钾肥之间对大豆产量的影响存在正互作关系,但互作效应不同:氮钾>氮磷>磷钾;T9(N2+P2+K2)株荚数、株粒数及百粒重均处于第一位,与其它处理有极显著差异;比对照增产24.7%,收益提高17.2%,为平豆2号最佳施肥措施。

In order to determine the effect of N、P、K combined application on yield and quality of Pingdou 2 soybean, 11 treatments were set up in this experiment.Through the comprehensive analysis of fertilizer deficiency experiment, economic properties, yield and benefits, the effect of N,P,K fertilizer on yield of soybean had positive correlation, but the effect was different as follows: N and K 〉 N and P 〉P and K;The pod number, grain number and 100-grain weight of T9(N2+P2+K2) were the greatest, which were significantly different from other treatments;Compared with the control, the yield and the profit were generally increased by 24.7% and 17.2%,respectively, T9(N2+P2+K2) was the best fertilization measure for Pingdou 2.