不同氮磷钾用量对卷心菜的影响

Effects of different N,P and K fertilizer applications on cabbage

研究不同的氮磷钾使用量对卷心菜的影响,试验结果表明,在16个不同施肥处理中10个处理的产量均能达到3 100 kg/666.7 m^2以上,扣除肥料成本后净收入1700元(人民币,下同)/666.7 m^2以上,其中处理6的经济效益最佳。考虑到增施有机肥可以改良土壤而收入减幅不显著,因此推荐在处理6基础上增施1000 kg/666.7 m^2的商品有机肥。

Cultural experiments of cabbage were carried out under different fertilizer applications in order to study the effects of different N,P and K fertilizer applications on cabbage. The results indicated that the ten of sixteen different treatments of N, P and K fertilizer application could made cabbage yield reach above 3 100 kg/666.7 m^2 and their net income after deducting fertilizer cost was over l 700 yuan/666.7 m^2. The economic efficiency under Treatment 6 was the best. Considering an effect of adding organic fertilizer on improving soil and less decrease in income, it was recommended adding 1 000 kg/666.7 m^2 commercial organic fertilizer application on the basis of Treatment 6,or the recommended application rates of commercial organic fertilizer, pure nitrogen, pure phosphorus and pure potassium were respectively 1 000,16,8 and 12.8 kg/666.7 m^2.