Clarification of nitrogen dynamics in paddy fields in Vietnam
越南稻田氮动态的澄清
基本信息
- 批准号:19405024
- 负责人:
- 金额:$ 3.74万
- 依托单位:
- 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
- 起止时间:2007 至 2009
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
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.
在3个试验点测定了氨挥发对稻田氮素的损失。损失平均为10.3kg ha^<-1>,相当于施氮量的11.4%。在越南北部的两个地点监测了施用氮肥的目的地。施氮量(平均94kg ha^<-1>)与水稻植株和土壤(0-25cm)氮素恢复和氨挥发量之间的差距为34.5kg ha^<-1>。间隙大部分是由反硝化和淋溶造成的氮损失造成的。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
ベトナムの水田におけるアンモニア揮散の測定と水田の窒素収支
越南稻田氨挥发和氮平衡测量
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:Takeshi Watanabe;Tran T Son;他5名;Takeshi Watanabe;渡辺武
- 通讯作者:渡辺武
Measurement of ammonia volatilization from flooded paddy fields in Vietnam
- DOI:10.1111/j.1747-0765.2009.00419.x
- 发表时间:2009-12
- 期刊:
- 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
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WATANABE Takeshi其他文献
Development in fundamental physics of polymer gels
聚合物凝胶基础物理研究进展
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
KAWAMOTO Teppei;AOKI Makoto;KIMURA Taro;CHINAPANG Pondchanok;MIZUSAWA Takako;YAMADA Norifumi L.;NEMOTO Fumiya;WATANABE Takeshi;TANIDA Hajime;MATSUMOTO Masashi;IMAI Hideto;MIYAKE Junpei;MIYATAKE Kenji;INUKAI Junji;○萱場裕貴・北條健太・小野健太・石崎学・金井塚勝彦・近藤慎一・栗原正人・三ツ石方也・松井淳;Takamasa Sakai - 通讯作者:
Takamasa Sakai
CVD-Graphene-Based Optically Transparent Antennas
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- DOI:
10.4139/sfj.72.433 - 发表时间:
2021 - 期刊:
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- 作者:
KOH Shinji;KOSUGA Shohei;SUGA Ryosuke;WATANABE Takeshi;HASHIMOTO Osamu - 通讯作者:
HASHIMOTO Osamu
WATANABE Takeshi的其他文献
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22780290 - 财政年份:2010
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