水田土壤における鉄化合物の行動について-1-
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- 資料種別
- 記事
- 著者・編者
- 高井 康雄
- 著者標目
- タイトル（掲載誌）
- 日本土壌肥料学雑誌 = Japanese journal of soil science and plant nutrition
- 巻号年月日等（掲載誌）
- 26(11) 1956.03
- 掲載巻
- 26
- 掲載号
- 11
- 掲載ページ
- ????
- 掲載年月日（W3CDTF）
- 1956-03
- ISSN（掲載誌）
- 0029-0610
- ISSN-L（掲載誌）
- 0029-0610
- 出版事項（掲載誌）
- 東京 : 日本土壌肥料学会 ; 1927-
- 出版地（国名コード）
- JP
- 本文の言語コード
- jpn
- NDLC
- 対象利用者
- 一般
- 所蔵機関
- 国立国会図書館
- 請求記号
- Z18-331
- 連携機関・データベース
- 国立国会図書館 : 国立国会図書館雑誌記事索引
- 書誌ID（NDLBibID）
- 10058905
- 整理区分コード
- 632
- 要約等
- In reference to the investigation on reversion of ferric to ferrous iron in paddy soils under waterlogged condition, an attempt was made to establish a rapid method for determining Fe^<++> and Fe ^<+++> in soil. The principle of the method was as follows : After Fe^<++> and Fe^<+++> in the soil were dissolved in hot 3N H_2SO_4 solution, Fe^<++> in the solution was determined colorimetrically by use of α, α'-dipyridyl. Then Fe^<+++> in the solution was determined, after it was reduced by the ammoniacal solution, saturated with sulfur dioxide. The results of the determination, according to this procedure, satisfied well author's purpose. From the results it was shown that : (1) After a larger part of easily reducible Fe^<+++>, was reduced to Fe^<++>, there was a rapid increase in sulfide. (2) A correlatin was observed between the lowering of Eh_7 and the increase of ratio of Fe^<++> to Fe^<++>+Fe^<+++>. From this correlation , the easily reducible iron compound in the soil appears to be one of the dynamic component of "electroactif" substances, buffering soil oxidation -reduction potential.
- DOI
- 10.20710/dojo.26.11_467
- オンライン閲覧公開範囲
- インターネット公開
- 連携機関・データベース
- 科学技術振興機構 : J-STAGE
- 要約等
- In reference to the investigation on reversion of ferric to ferrous iron in paddy soils under waterlogged condition, an attempt was made to establish a rapid method for determining Fe^<++> and Fe ^<+++> in soil. The principle of the method was as follows : After Fe^<++> and Fe^<+++> in the soil were dissolved in hot 3N H_2SO_4 solution, Fe^<++> in the solution was determined colorimetrically by use of α, α'-dipyridyl. Then Fe^<+++> in the solution was determined, after it was reduced by the ammoniacal solution, saturated with sulfur dioxide. The results of the determination, according to this procedure, satisfied well author's purpose. From the results it was shown that : (1) After a larger part of easily reducible Fe^<+++>, was reduced to Fe^<++>, there was a rapid increase in sulfide. (2) A correlatin was observed between the lowering of Eh_7 and the increase of ratio of Fe^<++> to Fe^<++>+Fe^<+++>. From this correlation , the easily reducible iron compound in the soil appears to be one of the dynamic component of "electroactif" substances, buffering soil oxidation -reduction potential.
- DOI
- 10.20710/dojo.26.11_467
- 連携機関・データベース
- 国立情報学研究所 : CiNii Research
- 提供元機関・データベース
- Japan Link Center雑誌記事索引データベースCiNii Articles
- 書誌ID（NDLBibID）
- 10058905
- NII論文ID
- 110001752006