| 琼中县水稻氮磷钾优化施用研究 |
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| 引用本文： | 谭丽霞,卓焕福.琼中县水稻氮磷钾优化施用研究[J].安徽农学通报,2012,18(15):81-82,133. |
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| 作者姓名： | 谭丽霞 卓焕福 |
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| 作者单位： | 琼中县农业技术推广服务中心,海南琼中,572900;琼中县农业技术推广服务中心,海南琼中,572900 |
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| 基金项目： | 农业部测土配方施肥资金项目，海南省科学事业费项目 |
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| 摘 要： | 采用"3414"试验研究水稻氮磷钾养分用量优化,结果表明:水稻产量受氮肥影响最大,其次是磷肥,钾肥影响较小。多元回归方程分析表明,每667m2施用氮、磷、钾养分分别为13.96kg、7.54kg和16.85kg时水稻产量最高为642.81kg,结合海南琼中水稻生产的实际,建议水稻生产中每667m2施用氮、磷、钾养分分别为10～11kg、6～7kg和9～11 kg,此时氮、磷、钾养分配比以1∶0.60～0.64∶0.9～1.0较合适。
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| 关 键 词： | 水稻 氮肥 磷肥 钾肥 优化施肥 |
Study on Optimizing NPK Rates for Rice in Qiongzhong County |
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| Institution: | Tan Lixia et al.(Agricultural Technical Extension Centre,Qiongzhong Li and Miao Autonomous County,Yinggen 572900,China) |
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| Abstract: | An experiment,adopting the theory of ＂3414＂ regression optimum design,were conducted to optimize NPK application rates for Rice.The results illustrated that yield of rice was mostly affected by nitrogen,followed by phosphorus,and potassium was less.Regression analyses concluded that the highest yield was 642.81 kg/667 hm2,the appropriate application rates of N,P2O5,K2O were 13.96,7.54 and 16.85 kg/667m2.The recommendation was that the appropriate application rates of N,P2O5,K2O were10~11,6~7 and 9~11 kg/667m2,the rational proportion of N∶ P2O5∶ K2O was 1∶ 0.60~0.64∶ 0.9~1.0 in Qiongzhong County. |
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| Keywords: | Rice Nitrogen fertilizer Phosphorus fertilizer Potassium fertilizer Optimized fertilization |
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