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タイトル山口県下における水田作土の窒素組成
タイトルヨミヤマグチケンカ ニオケル スイデンサクド ノ チッソソセイ
タイトル別表記Nitrogen Composition of the Plow Layers of Paddy Soils in Yamaguchi Prefecture
作成者進藤, 晴夫
東, 俊雄
作成者ヨミシンドウ, ハルオ
ヒガシ, トシオ
作成者別表記Shindo, Haruo
Higashi, Toshio
作成者所属山口大学農学部
内容記述(抄録等)The nitrogen composition of the plow layers of 30 paddy fields which belong to major soil groups in Yamaguchi Prefecture was investigated. The soils, namely 8 gray lowland soils, 7 gley soils, 6 yellow soils, 6 gray upland soils, and 3 brown lowland soils, were used. The results are as follows: 1) The total nitrogen contants per 100 g soil sample ranged widly from 150 to 480 mg, being 200 to 300 mg in 19 out of 30 samples studied. 2) The amounts of the NaOH-extractable nitrogen were 85-300gm per 100 g in all soil samples and were 100-200mg in 24 from a total of 30 samples. 3) The ratios of the NaOH-extractable nitrogen to the total nitrogen were 60-70% in 19 out of 30 samples. 4) The amounts of humic acid-nitrogen were nearly aqual to those of fulvic acid-nitrogen in most soil samples used. 5) No definite tendency was found between the nitrogen composition and the soil groups.
本文言語jpn
主題農学
資料タイプtext
出版者山口大学農学部
出版者ヨミヤマグチ ダイガク ノウガクブ
NII資料タイプ紀要論文
ISSN0513-1715
NCIDAN00244250
学内刊行物(紀要等)山口大学農学部学術報告
掲載誌名山口大学農学部学術報告
掲載誌名別表記Bulletin of the Faculty of Agriculture, Yamaguchi University
37
開始ページ61
終了ページ68
発行日1989
著者版/出版社版その他
リポジトリIDD490037000005
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/D490037000005