[1]段永蕙,张乃明,张玉娟.施肥对滇池流域农田土壤氮流失的影响[J].水土保持研究,2004,11(03):243-244,271.
　DUAN Yong-hui,ZHANG Nai-ming,ZHANG Yu-juan.Effect of Fertilizer Application on Nitrogen Loss from Farmland Runoff in Dianchi Watershed[J].Research of Soil and Water Conservation,2004,11(03):243-244,271.
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施肥对滇池流域农田土壤氮流失的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 11 期数: 2004年03期 页码: 243-244,271 栏目: 出版日期: 1900-01-01
Title:
Effect of Fertilizer Application on Nitrogen Loss from Farmland Runoff in Dianchi Watershed
作者:
段永蕙1,2, 张乃明1,2, 张玉娟1,2
1. 山西财经大学环境经济系 太原 030006;
2. 云南农业大学资源与环境学院 昆明 650201
Author(s):
DUAN Yong-hui1,2, ZHANG Nai-ming1,2, ZHANG Yu-juan1,2
1. Department of Environmental Economics, Shanxi University of Finance Economics, Taiyuan 030006, China;
2. College of Resources & Environmental Science, Yunnan Agriculture University, Kunming 650201, China
关键词:
施肥; 氮流失; 非点源污染; 滇池流域
Keywords:
fertilizer application; nitrogen loss; non-point source pollution; Dianchi watershed
分类号:
S147.2;X53
摘要:
采用模拟实验的方法，研究了滇池流域农田N素的去向及施肥方法、不同肥料配方对农田 N流失的影响。结果表明，不同N肥品种对农田 N的去向与利用率的影响不同，作物（水稻）对尿素的吸收利用率高于碳铵，施用碳铵的径流与渗漏损失大于尿素；合理的基肥比例及追肥次数，适当的种植密度及适量的N、P、K肥配合既可提高白菜产量，又可降低径流中 N的流失量；不同改性肥料配方可以调控农田径流 N的污染负荷
Abstract:
By means of simulation test, the movement state of nitrogen and effect of fertilizer application on nitrogen loss from farmland runoff were studied in Dianchi watershed. The result showed that the movement state and utilization ratio of nitrogen derived from chemical fertilizers varied with different fertilizer varieties, the assimilate nitrogen and utilization ratio of crops from urea were higher than from ammonium bicarbonate, among the fertilizer nitrogen loss from farmland runoff and leaching loss, ammonium bicarbonate application were higher than urea. The rational ratio between base fertilizer and top application, proper plant-growing density, moderate fertilizer application quantities could reduce nitrogen loss and heighten cabbage yield;the different compound fertilizers and improvement fertilizers could control nitrogen pollution loading from farmland runoff.

参考文献/References:

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备注/Memo

收稿日期:2004-6-23;
基金项目:云南省应用基础研究基金项目（No.1999C0011G）
作者简介:段永蕙（1964- ），女，汉族，硕士，副教授，主要从事环境地学与环境评价方面的教学与科研工作.

更新日期/Last Update: 1900-01-01