| 水稻氮、磷、钾施肥效应模型初探 |
| |
| 引用本文： | 陈怀红.水稻氮、磷、钾施肥效应模型初探[J].贵州农业科学,2009,37(8). |
| |
| 作者姓名： | 陈怀红 |
| |
| 作者单位： | 贵州省安顺市西秀区农业局土壤肥料站,贵州,安顺,561000 |
| |
| 基金项目： | 农业部、财政部测土施肥补贴资金项目 |
| |
| 摘 要： | 为安顺市西秀区主要水稻土优化肥料配方设计提供参考.采用"3414"回归最优设计在湖泥田上进行水稻氮磷钾肥效模型研究.结果表明,氮、磷、钾施用量设置在中、中、低水平能取得较高的经济效益,单因素和三因素肥料效应分析都表明,对产量形成贡献最大的是氮、其次是钾、磷最小.三元二次方程推荐的最佳施肥量为N14.24kg/667m2、P2O5 6.42kg/667m2、K2O 5.86kg/667m2,可获最佳产量为623.10kg/667m2.试验区农户施肥情况调查表明,当农户施肥与三元二次方程推荐的施肥方案接近时,产量效果比较好.综合表明,N14.24kg/667m2、P2)5 6.42kg/667m2、K2O 5.86kg/667 m2施肥配置方案对于指导施肥决策有参考价值.
|
| 关 键 词： | 水稻 氮、磷、钾肥 施肥模型 最佳施肥量 |
Application Models of Nitrogen,Phosphorus and Potassium Formulation in Rice |
| |
| CHEN Huai-hong.Application Models of Nitrogen,Phosphorus and Potassium Formulation in Rice[J].Guizhou Agricultural Sciences,2009,37(8). |
| |
| Authors: | CHEN Huai-hong |
| |
| Institution: | CHEN Huai-hong(Station of Soil and Fertilization,Xixiu Agricultural Bureau,Anshun,Guizhou 561000,China) |
| |
| Abstract: | The 3414application design of nitrogen,phosphorus and potassium formulation was tested in rice field to provide the optimum application formulation for rice production in Xixue district.The results indicated that the contribution rate affecting rice yield was nitrogen> potassium >phosphorus,and the highest rice yield(623.10 kg/667m2) could be obtained when application amount of N,P2O5 and K2O is 14.24 kg/667m2,6.42 kg/667m2 and 5.86 kg/667m2 in the test respectively,and the higher rice yields also were gain... |
| |
| Keywords: | rice nitrogen phosphorus and potassium fertilization application model optimum application amount |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
