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%文章阐述了贵州省凤冈县黄泥土中氮磷钾不同配比施用对玉米产量的影响。试验结果表明:试验的最大施肥量N=10.281kg/667m2,P=2.79kg/667m2,K=20.84kg/667m2,最大产量Y=563.79kg/667m2;最佳施肥量N=10.0kg/667m2,P=4.21kg/667m2,K=16.93kg/667m2,在此最优组合下,最佳产量Y=560.64 kg/667m2。试验实现目标产量400~500kg/667m2。
% Article The effects of different N, P and K ratios on the yield of maize in yellow soil of Fenggang County, Guizhou Province were described. The results showed that the maximum amount of fertilization N = 10.281kg / 667m2, P = 2.79kg / 667m2, K = 20.84kg / 667m2, the maximum yield Y = 563.79kg / 667m2; P = 4.21kg / 667m2, K = 16.93kg / 667m2. Under this optimal combination, the optimal yield Y = 560.64 kg / 667m2. Test to achieve the target output of 400 ~ 500kg / 667m2.