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Clarification of nitrogen dynamics in paddy fields in Vietnam

Clarification of nitrogen dynamics in paddy fields in Vietnam
越南稻田氮动态的澄清
批准号:
19405024
负责人:
WATANABE Takeshi
金额:
$3.74万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2007
资助国家:
日本
项目状态:
已结题
起止时间:
2007 至 2009

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中文摘要
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英文摘要
The nitrogen (N) losses from paddy field by ammonia volatilization were measured in 3 sites. The losses were 10.3kg ha^<-1> in average and equivalent to 11.4% of applied N fertilizer. Destinations of the applied N fertilizer were monitored at 2 sites in northern Vietnam. The gap between applied N fertilizer (94kg ha^<-1> in average) and sum of N recovered in rice plant and soil (0-25cm) and volatilized ammonia was 34.5kg ha^<-1>. It seemed that most of the gap was caused by N losses by denitrification and leaching.
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DOI: --
发表时间: 2008
期刊:
影响因子: --
作者: [Takeshi Watanabe, Tran T Son, 他5名, Takeshi Watanabe, 渡辺武]
通讯作者: 渡辺武
DOI: 10.1111/j.1747-0765.2009.00419.x
发表时间: 2009-12
期刊: Soil Science and Plant Nutrition
影响因子: 2
作者: [Takeshi Watanabe;T. T. Son-T.;N. N. Hung-N.;Nguyen van Truong;T. Q. Giàu;K. Hayashi;O. Ito]
通讯作者: Takeshi Watanabe;T. T. Son-T.;N. N. Hung-N.;Nguyen van Truong;T. Q. Giàu;K. Hayashi;O. Ito
火災時の現象を体験する実践的な居室を用いた煙体験訓練の改良
  • 批准号:
    20H00872
  • 项目类别:
    Grant-in-Aid for Encouragement of Scientists
  • 资助金额:
    $0.3万
  • 财政年份:
    2020
  • 负责人:
    WATANABE Takeshi
  • 依托单位:
Evaluation of Rebar Corrosion from Dormant Stage to Acceleration Stage by Ultrasonic Method
  • 批准号:
    15K06166
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 资助金额:
    $3.08万
  • 财政年份:
    2015
  • 负责人:
    WATANABE Takeshi
  • 依托单位:
Research to develop clinical education based on the relation between oral health and general health for professionalism promotion in dental school
  • 批准号:
    15K15780
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
  • 资助金额:
    $2.33万
  • 财政年份:
    2015
  • 负责人:
    WATANABE Takeshi
  • 依托单位:
Analysis of hydrogenase genes for the ecological elucidation of hydrogen-producing bacterial community in paddy field soil
  • 批准号:
    24780318
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
  • 资助金额:
    $2.91万
  • 财政年份:
    2012
  • 负责人:
    WATANABE Takeshi
  • 依托单位:
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