| 太行山山前平原冬小麦生长季硝态氮的淋失研究 |
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| 引用本文： | 李晓欣,胡春胜,Stephen J．Herber.太行山山前平原冬小麦生长季硝态氮的淋失研究[J].中国生态农业学报,2004,12(3):83-85. |
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| 作者姓名： | 李晓欣 胡春胜 Stephen J．Herber |
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| 作者单位： | 1. 中国科学院石家庄农业现代化研究所,石家庄,050021
2. University of Massachusetts Amherst,Massachusetts,01003 |
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| 基金项目： | 中国科学院知识创新工程项目(KZCX2-413-3,KZCX2-404-5)资助 |
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| 摘 要： | 试验研究太行山山前平原冬小麦生长季NO3- N淋失结果表明 ,该区现有灌溉施肥制度冬小麦生长季存在NO3- N的淋失 ,且主要发生在底墒水和返青水灌溉时期。整个冬小麦生长季施N水平为 1 0 0kg hm2 、2 0 0kg hm2 和 4 0 0kg hm2 时 ,通过 1 80cm土层界面的NO3- N淋失量分别为 0 1kg hm2 、2 2 1kg hm2 和 1 1 0 1kg hm2 。
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| 关 键 词： | NO3-N淋失 水量平衡 冬小麦 |
| 收稿时间： | 2/9/2003 12:00:00 AM |
| 修稿时间： | 2003年2月9日 |
Leaching loss of nitrate during the wheat growing season in Piedmont of Mountain Taihang |
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| LI Xiao Xin,HU Chun Sheng.Leaching loss of nitrate during the wheat growing season in Piedmont of Mountain Taihang[J].Chinese Journal of Eco-Agriculture,2004,12(3):83-85. |
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| Authors: | LI Xiao Xin HU Chun Sheng |
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| Abstract: | The leaching loss of NO 3 - N during wheat growing season in Piedmont Mountain Taihang are studied in this paper. The results show that there are lots of NO 3 - N leached during the wheat growing season in Piedmont of Mountain Taihang for the over fertilization and improper irrigation. The nitrate leaching through 180cm soil depth are 0 1kg/hm 2, 22 1kg/hm 2, and 110 1kg/hm 2 in wheat season with N 100kg/hm 2, 200kg/hm 2, and 400kg/hm 2 treatments, the irrigation before wheat planting and the first irrigation in the next year causes lots of nitrate leached. |
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| Keywords: | NO 3 - N leaching Water balance Winter wheat |
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