氮磷钾肥配施对大白菜产量和硝酸盐含量的影响研究  

Effects of Combined Application of N,P and K on the Yield and Nitrate Content of Chinese Cabbage

作　　者：肖厚军 闫献芳 彭刚 

机构地区：[1]贵州省农科院土肥所,贵州贵阳550006

出　　处：《土壤通报》2002年第4期281-284,共4页Chinese Journal of Soil Science

基　　金：贵州省自然科学基金项目 (黔基 1 999第 30 1 8号 )资助

摘　　要：采用三因素五水平最优回归设计 ,研究了贵阳黄泥土施用氮、磷、钾肥对大白菜 (ChineseCabbage)产量和硝酸盐含量的影响。结果表明 ,大白菜高产和低硝酸盐含量的最佳氮磷钾用量为N180～ 2 0 0kg/hm2 ,P2 O512 0～ 15 0kg/hm2 ,K2 O12 0～ 15 0kg/hm2 。An optimized regression design with three factors and five levels was applied to study the effects of N, P and K fertilizers on the yield of Chinese Cabbage and its nitrate content in Guiyang. The optimum combination of the three fertilizers was shown to be in the range of N 180～200kg/hm 2+P 2O 5120～150kg/hm 2+K 2O120～150 kg/hm 2 , which gave high yields of the crop with low contents of nitrate.

关 键 词：钾肥 配施 大白菜 产量 黄泥土 磷肥 硝酸盐含量 氮肥 

分 类 号：S634.1[农业科学—蔬菜学] S147.3[农业科学—园艺学]