| 双氰胺对赤红壤中氯化铵硝化抑制效应研究 |
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| 引用本文： | 李卓勇,梁家作.双氰胺对赤红壤中氯化铵硝化抑制效应研究[J].广西农业科学,2011(10):1238-1240. |
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| 作者姓名： | 李卓勇 梁家作 |
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| 作者单位： | 广西区307核地质大队;广西农业科学院蔬菜研究所; |
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| 基金项目： | 广西农业科学院基本科研业务专项项目[2005002(基)] |
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| 摘 要： | 【目的】研究双氰胺（DCD）对赤红壤中氯化铵硝化抑制效率的影响,为提高赤红壤氮肥利用率和减少氮肥污染提供科学依据。【方法】设置双氰胺6个土壤浓度梯度处理,采用室内好气恒温培养方法进行研究。【结果】赤红壤中添加DCD在同一培养时间均能显著降低土壤较高的铵态氮含量,提高硝态氮含量。但添加0.6%～1.0%DCD对氯化铵抑制作用效果相差不大。赤红壤中添加DCD对氯化铵的硝化抑制效率有3个高峰期：第1个高峰期在1～3d,第2个高峰期在28d,第3个高峰期在45d。【结论】DCD双氰胺与氯化铵配施能有效抑制氯化铵的硝化作用,氯化铵在赤红壤上使用时以配施0.6%DCD为宜。
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| 关 键 词： | 赤红壤 双氰胺（DCD） 氯化铵 硝化作用 抑制效应 |
The inhibitory effect of dicyandiamide on nitrification in latosolic red soil |
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| LI Zhuo-yong ,LIANG Jia-zuo.The inhibitory effect of dicyandiamide on nitrification in latosolic red soil[J].Guangxi Agricultural Sciences,2011(10):1238-1240. |
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| Authors: | LI Zhuo-yong LIANG Jia-zuo |
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| Institution: | LI Zhuo-yong 1,LIANG Jia-zuo2(1 Cuangxi 307 Nuclear Geology Team,Guigang,Guangxi 537121,China,2 Vegetable Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,China) |
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| Abstract: | Objective]Dicyandiamide(DCD) is widely used in agricultural production as nitrification inhibitor.The present study was carried out in order to study the inhibitory effect of DCD on ammonium chloride nitrification in lateritic red soil.Method]An experiment was conducted under aerobic conditions and constant temperature.Result] The results indicated that adding DCD significantly increased ammonium content and decreased nitrate nitrogen content at the same time.But inhibitory effect varied slightly at 0.6-... |
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| Keywords: | latosolic red soil dicyandiamide ammonia chloride nitrification inhibiting effect |
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