| 冀南稻麦轮作区化肥施用与氮磷流失状况分析 |
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| 引用本文： | 马保国,刘永朝,薛进军.冀南稻麦轮作区化肥施用与氮磷流失状况分析[J].灌溉排水学报,2007,26(3):72-74. |
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| 作者姓名： | 马保国 刘永朝 薛进军 |
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| 作者单位： | 1. 河北工程大学,水电学院,河北,邯郸,056021
2. 河北工程大学,农学院,河北,邯郸,056021 |
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| 基金项目： | 河北省自然科学基金
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国家自然科学基金 |
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| 摘 要： | 于2004年调查了冀南稻麦轮作区化肥施用状况和作物产量,并分析了稻田土壤速效氮和速效磷(Olsen-P)、田面水样及受田面影响的附近田外水样全氮、磷。结果表明:冀南地区施肥以化肥为主,有机肥施用比例较小,传统施肥对氮、磷地表流失明显,尤其是化肥用量大且配施有机肥的氮、磷流失最严重。田面水与田外水中氮、磷含量均达到极显著水平,氮、磷化肥不合理施用对附近水体存在较大污染风险。而试验区Ⅰ和Ⅱ,氮、磷流失较低。减少化肥施用量,合理施肥可降低施用化肥的环境风险。
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| 关 键 词： | 稻麦轮作 石灰性土壤 化肥施用 氮磷流失 |
| 文章编号： | 1672-3317（2007）03-0072-03 |
| 修稿时间： | 2006-11-24 |
Application of Chemical Fertilizer and the Loss of Nitrogen and Phosphorus in Rice and Wheat Rotation Soil in South Hebei |
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| MA Bao-guo,LIU Yong-chao,XUE Jin-jun.Application of Chemical Fertilizer and the Loss of Nitrogen and Phosphorus in Rice and Wheat Rotation Soil in South Hebei[J].Journal of Irrigation and Drainage,2007,26(3):72-74. |
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| Authors: | MA Bao-guo LIU Yong-chao XUE Jin-jun |
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| Institution: | 1. College of Water Resource and Hydroelectricity, Hebei University of Engineering, Handan 056021, China; 2. College of Agronomy, Hebei University of Engineering, Handan 056021, China |
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| Abstract: | Rice and wheat output and fertilizers application in high-yield rice-wheat rotation areas of south Hebei province were investigated in 2004.Soil samples in topsoil,surface-water samples in paddy field and drain-off water samples were collected,and available nitrogen and phosphorus in soil samples and total nitrogen and phosphorus in water samples were analyzed.The results show that most fertilizers applied in field are chemical.The more chemical fertilizers and manure are applied,the more nitrogen and phosphorus are lost.The nitrogen and phosphorus between surface-water of paddy soils and drain-off water are relative obviously.By application of excessive fertilizers and manures,pollution risk to water body is higher.However,there were lower N and P loss in testⅠand testⅡ.Reducing chemical fertilizer and applying rationally fertilizer could decrease the environmental risk of fertilizer in rice-wheat rotation soils. |
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| Keywords: | rice-wheat rotation calcareous soil application of fertilizer loss of nitrogen and phosphorus |
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