基于“3414”田间试验的水稻施肥模型的研究——以重庆市合川区为例  

Research on a Rice Fertilization Model Based on the "3414" Field Trial

作　　者：宋晓梅[1,2] 蒋太明 刘洪斌[1,2] 武伟[4] 张微微 

机构地区：[1]西南大学资源环境学院,重庆400715 [2]重庆市数字农业实验室,重庆400715 [3]贵州省农科院,贵阳550006 [4]西南大学计算机信息与科学学院,重庆400715 [5]合川区农业技术推广站,重庆401520

出　　处：《西南大学学报（自然科学版）》2010年第9期94-99,共6页Journal of Southwest University(Natural Science Edition)

基　　金：国家科技支撑计划课题(2008BADA4B10)

摘　　要：以合川区"3414"田间试验为依据,进行数据的收集与整理,通过回归分析建立水稻产量与氮、磷、钾施肥量的三元二次施肥模型.对三元二次肥料效应函数进行降维处理,分别分析了氮肥、磷肥、钾肥与水稻产量的单因素效应和交互效应.并且通过对该试验区水稻施肥模型的研究,获得了水稻氮、磷、钾的最佳施肥量及三者的配比组合情况,实现各种养分平衡供应,满足作物的需要;达到提高肥料利用率和减少用量,提高作物产量的目的.A ＂3414＂ fertilizer experiment was carried our in Hechua District of Chongqing and the data were collected and analyzed. Based on the regression analysis of the data,a ternary quadratic fertilization model was developed to study the relationship between rice yield and fertilizer （nitrogen,phosphorus and potassium）. Dimension reduction was performed of the fertilizer effect functions and the single-factor effect and interaction between NPK and rice yield were analyzed. Based on this model,the optimum rates of N,P and K and their optimum combination are recommended.

关 键 词：水稻 施肥模型 肥料效应函数 

分 类 号：S511[农业科学—作物学] S147.21