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ID 11441
JaLCDOI
Sort Key
9
フルテキストURL
著者
Khan Md. H. R. 岡山大学
Mohiuddin M. Department of Soil, Water and Environment, University of Dhaka
Rahman M. Department of Soil, Water and Environment, University of Dhaka
Akhtar M. S. 岡山大学
沖 陽子 岡山大学 Kaken ID researchmap
足立 忠司 岡山大学
抄録
Studies on the existing non-symbiotic diazotrophic systems still are the most promising for better use of biological nitrogen fixation (BNF) in agriculture. The possibilities for the extension of nitrogen fixation to rice plants still speculative. The prospect of extension of N(2)-fixation to other plants was originally formulated to simulate the possibilities for the biological use of atmospheric nitrogen in order to overcome the ecological and economical problems of nitrogenous fertilizers. In view of this, the present study was conducted for the characterization and identification of N(2)-fixing bacterial strains at the maturity (110 days) stage in rhizosphere of rice (BR 10, Oryza sativa L.) grown in Brahmaputra Alluvium soil of Bangladesh. The soil is characterized as 'Inceptisol' order and 'Aquept' suborder. It was identified as 'Dhamrai series', had 'silt' texture, pH 6.0 and 6.8 C/N ratio. The present results of the microbial tests on the rice rhizosphere soil demonstrated that out of 401 isolates, only 94 were branded as nitrogen fixing organisms per gram of soil, which is about 23.4% of the total isolates. Based on the selection criteria, four individual strains were selected for identification. Biochemical tests were conducted for proper identification. They were identified as Closteridium spp., Klebsiella spp., Bacillus spp. and Azospirllum spp.
キーワード
Azospirllum spp.
Bacillus spp.
BNF
Closteridium spp.
Diazotrophs
Klebsiella spp.
Oryza sativa L.
出版物タイトル
岡山大学環境理工学部研究報告
発行日
2007-03-15
12巻
1号
出版者
岡山大学環境理工学部
出版者(別表記)
Faculty of Environmental Science and Technology, Okayama University
開始ページ
77
終了ページ
81
ISSN
1341-9099
NCID
AN10529213
資料タイプ
紀要論文
OAI-PMH Set
岡山大学
言語
English
論文のバージョン
publisher
NAID
Eprints Journal Name
fest