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Title Transcription
ネンド コウブツ ノ カリコテイ ト PH トノ カンケイ
Title Alternative (English)
The Relationship between pH and K-Fixation of the Clay Minerals
File
language
jpn
Author
Koshiba, Naohiro
Sano, Yutaka
Description
The purpose of the experiment, described in this paper, is to examine the effect of pH on the fixation of applied K in clay minerals, namely, kaolinite, sericite, hydrated halloysite, montmorillonite. The clay minerals were adjusted to pH values ranging from 3.00 to 9.08, adding HCL or NaOH, and a constant level of KCL were added, and were dried and wetted alternately or stood at 30℃ for 48 hours. The results obtained were as follows :
1) As to kaolinite, there was no tendency in K-fixation influenced by the pH under moist condition or alternately dried and wetted conition.
2) As to hydrated halloysite, the amounts of fixed K showed the maximum at pH 5-6 under both conditions, and reduced at pH value below or above 5-6.
3) As to sericite, the amounts of fixed K increased as the pH value rose, in both conditions.
4) As to montmorillonite, the amounts of fixed K reduced as the pH rose, at pH value below 5.05, under alternately dried and wetted condition, and there was little deviation of the fixed K at pH value above 5.05.
Under moist condition, there was little deviation of the fixed K caused by pH.
Journal Title
島根農科大学研究報告
Volume
12
Start Page
(A)43
End Page
45
ISSN
05598311
Published Date
1964-01-10
NCID
AN00108241
Publisher
島根農科大学
Publisher Aalternative
The Shimane Agricultural College
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
Remark
A,Bを含む
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