甘蔗糖业Issue(3)：14-18,5.
甘蔗氮磷钾优化施肥对产量的效应
Optimal Fertilization of NPK to the Sugarcane Yield
摘要
Abstract
A field experiment was conducted with “311-A” optimal combination design to find the best NPK fertilization scheme for mechanical cultivation of sugarcane in the central part of Guangxi. SAS was employed for regression analysis and for finding an optimal fertilization formula. Formula for the greatest yield of Guitang 31 were (kg/hm2): N=267.75, P2O5=341.40, K2O=455.25 with N:P:K ratio of 1:1.28:1.7, and formula for the optimal yield were (kg/hm2): N=155.25, P2O5=341.40, K2O=117.75 with N:P:K ratio of 1:2.2:0.76. Formula for the greatest yield of Liucheng 05-136 were (kg/hm2): N=117.75, P2O5=341.40, K2O=455.25 with N:P:K ratio of 1:2.9:3.9, and formula for the optimal yield were (kg/hm2): N=117.75, P2O5=341.40, K2O=117.75 with N:P:K ratio of 1:2.9:1.关键词
甘蔗/氮磷钾优化配比/产量Key words
Sugarcane/Optimal fertilization of NPK/Yield分类
农业科技引用本文复制引用
李群芳,江泽普..甘蔗氮磷钾优化施肥对产量的效应[J].甘蔗糖业,2016,(3):14-18,5.基金项目
国家甘蔗产业技术体系建设专项资助资金(CARS-20-6-7、CARS-20-3-5) （CARS-20-6-7、CARS-20-3-5）
