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"回归最优设计在潮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N 14.24 kg/667m2、P2O56.42 kg/667m2、K2O 5.86 kg/667m2,可获最佳产量为623.10 kg/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,N 14.24 kg/667m2、P2O56.42 kg/667m2、K2O 5.86 kg/667m2施肥配置方案对于指导施肥决策有参考价值。
The ＂3414＂application 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/667m^2） could be obtained when application amount of N, P2O5 and K2O is 14.24 kg/667m^2 , 6.42 kg/667m^2 and 5. 86 kg/667m^2 in the test respectively, and the higher rice yields also were gained in rice production of farmer households when the similar application amount of nitrogen, phosphorus and potassium. The optimum application formulation of nitrogen, phosphorus and potassium can be popularized in rice production in Anshun city.
出处
《贵州农业科学》
CAS
北大核心
2009年第8期57-60,共4页
Guizhou Agricultural Sciences
基金
农业部
财政部测土施肥补贴资金项目
关键词
水稻
氮
磷
钾肥
施肥模型
最佳施肥量
rice
nitrogen, phosphorus and potassium fertilization
application model
optimum application amount
