【摘要】 通过田间试验 ,获取了氮磷钾与玉米产量各自的肥料效应函数模型 ,从产量角度讲 ,最佳的肥料施用量 ,N为 143kg/hm2 ,P2 O5为 60kg/hm2 ,K2 O为 35 5kg/hm2 ,一般可获得玉米产量为710 0kg/hm2 ～ 790 0kg/hm2 。还讨论了经济最佳施肥量的确定。表 4 ,参 2更多还原

【Abstract】 In this paper the functional model,which was for the manure effect of NPK and maize yield,was set up through field test.In terms of yield,the best ferlilizer rates were 143 kg/hm 2 of N, 60 kg/hm 2 of P 2O 3 and 35.5 kg/hm 2 of K 2O and commonly achieved the yield of 7100 kg/hm 2～7900 kg/hm 2.The economic and reasonable fertilizer application was also discussed.更多还原