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＜紀要論文＞
A Preliminary Monitoring of the No_3-N Concentration in the Surface Water in the Paddy-Cultivated Area of the Central Red River Delta, Viet Nam 

作成者
著者識別子
K001567
作成者名
Kurosawa, Kiyoshi
黒澤, 靖
所属機関
所属機関名
Land-Water resources and Environment Conservation Section, Institute of Topical Agriculture, Kyushu University
九州大学熱帯農学研究センター地水環境保全学
作成者名
Hai Do, Nguyen
所属機関
所属機関名
Faculty of Land and Water Resources Management, Hanoi Agricultural University
作成者名
Canh Nguyen, Tat
所属機関
所属機関名
Faculty of Land and Water Resources Management, Hanoi Agricultural University
作成者名
Tanh Nguyen, Huu
所属機関
所属機関名
Faculty of Land and Water Resources Management, Hanoi Agricultural University
作成者名
Manh Nguyen, Dinh
所属機関
所属機関名
Faculty of Land and Water Resources Management, Hanoi Agricultural University
著者識別子
K001541
作成者名
Egashira, Kazuhiko
江頭, 和彦
所属機関
所属機関名
Laboratory of Soil Science, Division of Soil Science and Plant Production, Department of Plant Resources, Faculty of Agriculture, Kyushu University
九州大学農学部土壌学
本文言語
英語
出版者
Kyushu University
九州大学農学部
発行日
2002-10-30
収録物名
九州大学大学院農学研究院紀要
巻
47
号
1
開始ページ
159
終了ページ
165
出版タイプ
Version of Record
アクセス権
open access
Crossref DOI
https://doi.org/10.5109/24469
関連DOI
九州大学農学部紀要 || 47(1) || p159-165
Journal of the Faculty of Agriculture, Kyushu University || 47(1) || p159-165
http://www.agr.kyushu-u.ac.jp/
関連URI
九州大学農学部紀要 || 47(1) || p159-165
Journal of the Faculty of Agriculture, Kyushu University || 47(1) || p159-165
http://www.agr.kyushu-u.ac.jp/
関連情報
九州大学農学部紀要 || 47(1) || p159-165
Journal of the Faculty of Agriculture, Kyushu University || 47(1) || p159-165
http://www.agr.kyushu-u.ac.jp/

本文ファイル

pdf p159 pdf 678 KB 360  

詳細

PISSN
0023-6152
NCID
AA00697606
レコードID
24469
査読有無
査読無
主題
NO_3-N concentration
Soil
Paddy field
pH level
ISSN
0023-6152
NCID
AA00697606
注記
The NO_3-N concentration and pH in the surface water in the paddy-cultivated areas of the central Red River Delta, Vietnam were monitored at 24 sites of 5 districts in March 2002 after the spring rice was transplanted. In the areas, fertilizer N of 100-150 kg/ha has been conventionally applied in each of the three cultivations in a year. The measured NO_3-N concentration was in the range of 0.11-3.03 mg/L and was below the permissible level of 11.3 mg/L for drinking water, but some samples exceeded the standard for pH （8.5）. The districts could be separated from one another according to the combination of the NO_3-N and pH levels, but this separation was not due to the comparative land elevation. Relevant factors such as the soil pH, the amount and time of N application in every cultivation, and the NH_4 level are to be monitored in the future study. The NO_3-N concentration was negatively correlated with the pH level in some districts, possibly impacted by nitrification. No remarkable difference was observed in both the NO_3-N and pH levels between the ponding water of the paddy field and the water of the neighboring irrigation/drainage canal.
登録日 2012.08.02
更新日 2022.11.11

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