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フルテキストURL2007020012.pdf ( 2.3MB ) 公開日 2010-04-16
タイトル肥料被覆材の土壌中における分解性
タイトルヨミヒリョウ ヒフクザイ ノ ドジョウチュウ ニオケル ブンカイセイ
タイトル別表記Degradation of coating material for chemical fertilizer in soils
作成者坪内, 正之
山本, 一夫
山田, 憲照
丸本, 卓哉
作成者ヨミツボウチ, マサユキ
ヤマモト, カズオ
ヤマダ, ノリアキ
マルモト, タクヤ
作成者別表記Tsubouchi, Masayuki
Yamamoto, Kazuo
Yamada, Noriaki
Marumoto, Takuya
作成者所属山口大学農学部
内容記述(抄録等)Coating resin chemical fertilizer using alkyd resin and polyethylene resin is added into soils, and it is a problem that these resins remain in the soils. Therefore, we investigated the degradation of these resins in the soils. The results obtained were as follows. 1) The dergradation ratio of alkyd resin was higher than polyethylene resin. Three month later, the former was 4.5% and the latter was below 0.5%. The result that the degradation ratio of alkyd resin was higher in soil with a high humus content suggested that the degradation of the coating material is microbiological. 2) There were no differences between alkyd and polyethylene resins in the number of microorganisms on the coating membrane surface and in the soil around the coating membrane, but the number of fungi in the former was about 100 times higher in the coating membrane and was about 10 times higher in the soil around the coating membrane than in the latter. In addition, using the trial box for the measurement of enzymatic activity, soil enzymatic activity concerned with the degradation of alkyd resin membrane was measured, and the results showed that the activity of the soil enzymes was high nearer the membrane. 3) Under field conditions, we took the buried membrane out of soils and observed its surface by electron microscopy. It was observed that the surface of the alkyd resin membrane was consequently degraded than the surface of polyethylene resin. These results definitely show that the alkyd resin membrane was degraded faster than the polyethylene resin membrane by the microorganisms in soils, and it thus appears to be a good material for use in coated fertilizer.
本文言語jpn
著者キーワード被覆肥料
アルキッド系樹脂
生分解
ポリエチレン系樹脂
土壌酵素
alkyd resin
biological degradation
coating fertilizer
polyethylene resin
soil enzyme
主題農学
資料タイプtext
ファイル形式application/pdf
出版者日本土壌肥料学会
出版者ヨミニホン ドジョウ ヒリョウ ガッカイ
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0029-0610
NCIDAN00195767
掲載誌名日本土壌肥料学雑誌
掲載誌名別表記Journal of the science of soil and manure, Japan
66
3
開始ページ247
終了ページ252
発行日1995-06-05
関連情報URL(HasVersion)http://ci.nii.ac.jp/naid/110001754294/
著者版/出版社版出版社版
リポジトリID2007020012
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2007020012