| 水位管理对稻田水质及水稻生长的综合影响 |
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| 引用本文： | 付勇智,马永胜,赵冉,孙光.水位管理对稻田水质及水稻生长的综合影响[J].东北农业大学学报,2009,40(8). |
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| 作者姓名： | 付勇智 马永胜 赵冉 孙光 |
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| 作者单位： | 东北农业大学水利与建筑学院,哈尔滨,150030 |
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| 基金项目： | 黑龙江省科技(攻关)计划项目，黑龙江省水利厅开发重点项目，东北农业大学创新团队发展计划 |
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| 摘 要： | 采用田间小区试验的方法,研究对比了水稻分蘖期施肥后不同水位管理下稻田表面水体中氨氮、硝氮含量变化特征以及水稻植株的自身生长状况。结果表明,尿素施用后,各处理小区田表水中氨氮和硝氮含量的变化趋势都是先增加,并在达到最大值后迅速下降。对比不同水位下的情况:水层越浅,水中氨氮的衰减速率越快。同时水中氨氮的最终含量也越低,水层深度与氨氮的最终含量值呈线性正相关。但在深水位管理下,水中硝氮含量的衰减速率最快,最终含量值最低;而水层深度与水稻的分蘖数呈线性负相关。基于试验结果,本研究提出了分蘖期宜采用浅水灌溉的方式,有助于田间地表水中氮含量的下降和水稻自身的生长。
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| 关 键 词： | 水稻 氨氮 硝氮 分蘖数 |
Comprehensive effect of the water table management on the surface water quality in rice field and the growth of rice |
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| Fu Yongzhi,MA Yongsheng,ZHAO Ran,SUN Guang.Comprehensive effect of the water table management on the surface water quality in rice field and the growth of rice[J].Journal of Northeast Agricultural University,2009,40(8). |
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| Authors: | Fu Yongzhi MA Yongsheng ZHAO Ran SUN Guang |
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| Institution: | FU Yongzhi,MA Yongsheng,ZHAO Ran,SUN Guang(College of Water Conservancy , Building Engineering,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | By using the test method of the field district, the article researched and compared the content variation features of the nitrate nitrogen, the ammonia nitrogen on the surface water and the growth status of rice plant which were in the different water table management after fertilizing in the tillering stage. The results showed that the whole developing trend of the nitrate nitrogen content was rapidly increasing, and then was decreasing rapidly after reaching its maximum value, however, the whole developin... |
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| Keywords: | rice ammonia nitrogen nitrate nitrogen tiller number |
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