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Title Transcription
ドジョウ ノ オンド ショリ ト カリ コテイ ノ カンケイ
Title Alternative (English)
The Relation of K-Fixation to the Treatment of the Soils with Temperature
File
language
jpn
Author
Misu, Hideo
Koshiba, Naohiro
Sano, Yutaka
Description
We usually combust the soil to take away the humus in the soil.
In the case of such a treatment of the soil, we observed the phenomenon in which the exchange sites of the inorganic substances of the soil may be changed. To study it more conclusively, we adopted this experiment.
Now, we treated two kinds of the soils under the various temperatures, that is, 100℃, 300℃, 500℃ and 700℃, and then in addition to this experiments, we observed how the K-fixation may be changed by the various hours, that is, 5 hours, 10 hours, 20 hours, under the same condition of the temperature.
The exchangeable K and the fixed K of the soils treated under 100℃ did not almost differ from those of the untreated soils. Then, we could observe that their differences between the treatments of the long hours and those of the short hours, under the 100℃, did not exist.
In the case of the soils treated under 300℃, the exchangeable K decreased with time, in comparison to the soils treated under 100℃. On the other hand, under the treatments of 5 hours, the fixed K did not almost differ from those of the soils of each treatment at 100℃, while it decreased with time.
Under the treatments at 500℃, the exchangeable K decreased with time, in comparison to the soils of each treatment at 300℃. The fixed K decreased, in comparison to the soils of each treatment at 300℃, and we did not recognize its differences among the soils treated at the fomerly cited hours.
Keeping the soils under 700℃, we recognized the exchangeable K decreased, in comparison to the soils treated at 500℃, but we could not observe the influence of time to exchangeable K. The fixed K were almost equal to those of the soils of each treatment at 500℃ and also we did not recognize the influence of time to the fixed K.
Journal Title
島根農科大学研究報告
Volume
9
Start Page
(A-1)124-126
ISSN
05598311
Published Date
1961-03-31
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
開学十周年記念号(Commemoration Number for the 10th Anniversary)
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