氮磷钾肥对结球甘蓝商品性状及其产量的影响  

Effect of N、P、K Application Rate on Merchandise Properties and Yield of Headed Cabbage

作　　者：林昌华[1] 白由路[2] 罗国安[3] 谢祝捷[4] 

机构地区：[1]华南农业大学资源环境学院,广东广州510642 [2]中国农业科学院农业资源与农业区划研究所,北京100081 [3]上海农业科学院环境科学研究所,上海201106 [4]上海农业科学院园艺科学研究所,上海201106

出　　处：《中国农学通报》2008年第6期329-334,共6页Chinese Agricultural Science Bulletin

基　　金：上海市科技兴农重点攻关项目(农科攻字(2004)第2-8)资助

摘　　要：应用311-A拟饱和最优回归设计,通过氮磷钾肥配比田间试验,建立结球甘蓝施用氮磷钾肥对叶球紧实度、经济产量及施肥利润的效应函数。寻优结果表明,结球甘蓝叶球紧实度氮、磷、钾优化施肥组合为N233.15kg/hm2、P2O575.00kg/hm2、K2O158.19kg/hm2,此时的叶球紧实度为0.1112;最高经济产量的氮、磷、钾优化施肥组合为N302.99kg/hm2、P2O575.00kg/hm2、K2O125.06kg/hm2,此时的产量为104794.00kg/hm2;最佳施肥利润的氮、磷、钾优化施肥组合为N289.80kg/hm2、P2O575.00kg/hm2、K2O121.16kg/hm2,其最佳施肥利润达103171.6元/hm2,经济产量达104773.00kg/hm2。The effect functions of N P K application on economical yield,fertilization benefit and the degree of leaf ball strength of headed cabbage （Brassica oleracea var.capitata L.） were studied by the field experiments with 311-A best regression design of supposed saturation. The results showed that the best N P K application of headed cabbage with maximum degree of leaf ball strength of 0.112 was N233.15, P2O5 75.00 and K2O 158.19kg/hm^2, the best N P K application with maximum economical yield of 104794kg/hm^2 was N302.99, P2O5 75.00 and K2O 125.06kg/hm^2, the best N P K application with the best fertilization benefit of 103171.6yuan/hm^2 and higher economical yield of 104773.00kg/hm^2 was N289.80, P2O5 75.00 and K2O 121.16kg/hm^2.

关 键 词：结球甘蓝 平衡施肥 商品性状 产量 

分 类 号：S572.062[农业科学—烟草工业] S513[农业科学—作物学]