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Kinetics of the mineralization of ureaform as influenced by temperature
Year:
1974
Source of publication :
Soil Science
Authors :
Hadas, Aviva
;
.
Volume :
118
Co-Authors:
Hadas, A., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Kafkafi, U., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
16
To page:
21
(
Total pages:
6
)
Abstract:
The rate of nitrogen release from improved ureaform (AI = 72 percent) in a soil of pH 7.6 was determined in a laboratory experiment as a function of temperature and initial ureaform concentration. The mineralization percent of ureaform at several periods of time was unaffected by its initial concentration in soil but increased greatly with temperature in the range of 14°C to 34°C. A temperature of 14°C induced a long delay period at the beginning of the mineralization process of ureaform. The Michaelis-Menten rate equation was applied to the process of UF mineralization. In the concentration range of 100–1000 ppm N, first-order reactions were obtained and rate constants were calculated. The rate constants increased with temperature. © 1974 The Williams & Wilkins Co.
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DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
27513
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:31
Scientific Publication
Kinetics of the mineralization of ureaform as influenced by temperature
118
Hadas, A., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Kafkafi, U., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Kinetics of the mineralization of ureaform as influenced by temperature
The rate of nitrogen release from improved ureaform (AI = 72 percent) in a soil of pH 7.6 was determined in a laboratory experiment as a function of temperature and initial ureaform concentration. The mineralization percent of ureaform at several periods of time was unaffected by its initial concentration in soil but increased greatly with temperature in the range of 14°C to 34°C. A temperature of 14°C induced a long delay period at the beginning of the mineralization process of ureaform. The Michaelis-Menten rate equation was applied to the process of UF mineralization. In the concentration range of 100–1000 ppm N, first-order reactions were obtained and rate constants were calculated. The rate constants increased with temperature. © 1974 The Williams & Wilkins Co.
Scientific Publication
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