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タイトル山口大学農学部附属農場の土壌の化学性
タイトルヨミヤマグチ ダイガク ノウガクブ フゾク ノウジョウ ノ ドジョウ ノ カガクセイ
タイトル別表記Chemical Properties of Soils in the Farm Attached to Faculty of Agriculture, Yamaguchi University
作成者東, 俊雄
丸本, 卓哉
山本, 圭一
作成者ヨミヒガシ, トシオ
マルモト, タクヤ
ヤマモト, ケイイチ
作成者別表記Higashi, Toshio
Marumoto, Takuya
Yamamoto, Keiichi
作成者所属山口大学農学部
内容記述(抄録等)The chemical properties of soils in the farm attached to Faculty of Agriculture, Yamaguchi University were examined. The topsoils and subsoils of 4 paddy fields, 2 orchards and 3 forage crop fields were analyzed for mechanical compositions, pH, exchangeable bases, CEC, macro and micro nutrients and clay minerals. The soil textures were LiC (mainly upland field) or CL (mainly paddy field). Except for a field of special conditions, soil reactions of all fields were neutral reflecting succesive liming. Careful attention to overliming would be required hereafter. The topsoils of all fields were lower in organic carbon, total nitrogen and available nitrogen. More application of organic materials is indispensable to improve the farm land fertility. In the base status, the forage crop fields were conspicuous for the low available potassium contents. Available molybdenum contents were rather low for all fields. Available boron and manganese contents were fluctuated among the fields from deficient to proper amounts, and the higher values were seemed to be resulted from the residual effects of the FTE fertilizers (BM-fused phosphate) applied before. There were no specific problems on phosphorous, copper and zinc. All the clay fractions were composed mainly with kaolin minerals, mica and hydroxy-Al interlayered vermiculite. It indicates that the cation exchange characteristics of clay fractions are exclusively pH-depending and ion-selective.
本文言語jpn
著者キーワードSoil chemical property
farm land fertility
micronutrients
soil clay minerals
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
39
開始ページ47
終了ページ59
発行日1991-12
著者版/出版社版その他
リポジトリIDD490039000005
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/D490039000005