氮磷钾肥不同配施量对油菜产量的影响

Effect of Different Application Amount of N,P and K on Rape Yield

采用“3414”试验方法研究了油菜在不同氮、磷、钾肥施用量组合下 ,油菜产量与施肥的关系 ,应用回归效应方程寻找最优施肥量组合。试验结果 :氮磷钾肥的最优组合为 N 119.2 4 kg/ hm2 ,P2 O599.88kg/ hm2 ,K2 O12 8.82 kg/ hm2 ,此组合下 ,可信程度达 95% ,产量可达 2 713.2 3± 112 .4 6 kg/ hm2。

The relationship between yield and fertilizer application was studied by means of “3414” method under different amounts of N,P and K applied . The best combination of amounts of N,P and K applied was obtained by establishing with a regression equation. The results showed that the best combination is N 119.24 kg, P 2O 599.88 kg and K 2O 128.82 kg/ha, and that the yield would reach to 2 713.23± 112.46 kg/ha with 95% confidence.