| 氮素化肥在水稻上最佳施用量试验结果分析 |
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| 引用本文： | 伍文初,孟庆金,谢裕壁,覃锦龙.氮素化肥在水稻上最佳施用量试验结果分析[J].广西农学报,2009,24(2):7-8. |
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| 作者姓名： | 伍文初 孟庆金 谢裕壁 覃锦龙 |
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| 作者单位： | 全州县农业局土肥站,广西桂林市,541500 |
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| 基金项目： | 广西农业测土配方施肥补贴项目 |
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| 摘 要： | 为摸索最佳施氮量，对5种不同氮肥施用量进行对比试验，试验结果表明：在中等肥力的潴育潮沙田中，每667m^2施腐熟栏粪500kg、P2O5 4kg、K2O 9kg的基础上，水稻产量随施氮量的增加而增加，超过一定量后，产量下降；最高产量施氮量：667m^2施纯氮量早稻为10．92kg，晚稻为12．15kg，晚稻施氮量略高于早稻；早稻667m^2施纯氮10．07kg。晚稻667m^2施纯氮11．03kg，经济效益最佳。
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| 关 键 词： | 氮素化肥 水稻 最佳施用量 |
The experimental analysis of nitrogen fertilizer's best application amounts on rice |
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| Institution: | Wu Wen-chu et al (Soil and fertilizer station of agriculture bureau of Quanzhou County, Guilin, Guangxi 541500, China) |
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| Abstract: | In order to explore the best application amounts for nitrogen fertilizers,a plots experiment was conducted by five application amounts and the results show that in middle fertility paddy field, on basis of 500kg manure,4kg P2O5 and 9kg K2O/667m^2,the rice yield will be increased along with the increase of nitrogen application, and above a certain amounts, the yield will be decreased. The highest nitrogen applications are 10.92kg/667m^2 for early rice and 12.15kg for late rice. The best application amounts for economic effectiveness are 10.07kg/667m^2 for early rice and 11.03kg for late rice. |
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| Keywords: | Nitriogen fertilizer rice best application amount |
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