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Air-drying treatment and mineralization of biomass nitrogen in paddy soils

Journal of the science of soil and manure, Japan Volume 68 Issue 4 Page 376-380
published_at 1997-08-05
2007020017.pdf
[fulltext] 1.95 MB
Title
水田土壌の風乾処理とバイオマス窒素の無機化
Air-drying treatment and mineralization of biomass nitrogen in paddy soils
Creators Marumoto Takuya
Creators Andoh Hoh
Creators Wada Gensichi
Creator Keywords
風乾 乾土効果 微生物バイオマス クロロホルム燻蒸-抽出法(FE法) air-drying chloroform fumigation-extraction method drying effect microbial biomass
The relationship between the nitrogen mineralized after the air-drying treatment of paddy soils and microbial biomass nitrogen was investigated. The amount of nitrogen mineralized after air-drying and water-logging treatment increased throughout the air-drying period and reached the maximum level of two weeks of incubation. The amount of microbial biomass decreased during air-drying. The relationship between the nitrogen mineralized after two weeks of incubation following air-drying treatment and the biomass nitrogen in paddy soils was significantly high. The contribution of biomass nitrogen to total mineralized nitrogen was about 20-48% in paddy soils and lower than that in upland soils (45-50%).
Subjects
農学 ( Other)
Languages jpn
Resource Type journal article
Publishers 日本土壌肥料学会
Date Issued 1997-08-05
File Version Version of Record
Access Rights open access
Relations
[ISSN]0029-0610
[NCID]AN00195767
[isVersionOf] [NAID]http://ci.nii.ac.jp/naid/110001747363/
Schools 農学部