| 水稻田中氮元素迁移规律研究 |
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| 引用本文： | 冯海涛.水稻田中氮元素迁移规律研究[J].江西化工,2013(3):110-113. |
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| 作者姓名： | 冯海涛 |
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| 作者单位： | 西安地质调查中心 |
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| 摘 要： | 以汉中水稻田为研究对象,定期采集某水稻田不同深度的土样和水样,测定土样水解性氮含量和水样总氮含量,分析水稻田氮元素分布迁移规律.结论为：1.水稻田0-10cm土壤水溶性氮含量受施肥和降雨天气的影响不大,而10-15cm土壤水溶性氮含量受施肥和降雨影响较大.2.施肥后,水样中氮元素含量迅速增大；遇到降雨后,水样中氮元素含量迅速降低建议施肥前关注天气变化,合理施肥,减少化肥的损失率.
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| 关 键 词： | 水稻田 氮含量 土壤 迁移规律 |
Nitrogen migration of the rice fields |
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| FENG Hai-tao.Nitrogen migration of the rice fields[J].Jiangxi Chemical Industry,2013(3):110-113. |
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| Authors: | FENG Hai-tao |
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| Affiliation: | FENG Hai-tao;Xi’an Center of Geological Survey; |
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| Abstract: | The research focus on rice filed in Hanzhong city ,the soil samples of different depth and water samples were regularly collected, hydrolysis nitrogen content in soil samples and total nitrogen in water samples were determined. There were two conclusions, firstly, the nitrogen content in 0 - 10cm soil samples had almost no influence by fertilization and rainfall, meanwhile, there was more influence in 10 - 15em soil samples. Secondly, the total nitrogen in water sample would be lower after rains, and higher after fertilizations. |
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| Keywords: | Rice fields Nitrogen content Soil Migration law |
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