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The use of N 15 for studying the relation between the development of the microbial biomass and the remineralization of nitrogen fertilizer by rice

Abstract

The study aims at determining the mechanism of secondary mineralization of fertilizer N in the form of (N{sup 15} H{sub 14})2 SO{sub 4} which was transformed to the organic N using soil samples taken after a period of 16 weeks from the series of pot experiments. The development of the microbial biomass was studied using the method of Jenkinson and Powlson(1976) which was modified by Bottner et al (1984). Nitrogen mineralization was determined using the Stanford and Smith (1972) method. The study indicated that the values of mineralization constant varied from 0.0012 to 0.027 in different treatments. Accordingly, the half-life of microbial biomass ranged from 6 to 7 months, indicating fast transformation of microbial N as compared with total organic N in the soil which ranged between 7 to 12 years.1 fig., 3 tabs.
Authors:
Al-Chater, M S [1] 
  1. King Faisal University - Faculty of Agriculture and Food Science Department of Soil and Water Al-Hassa, (Saudi Arabia)
Publication Date:
Oct 01, 1995
Product Type:
Miscellaneous
Report Number:
INIS-EG-001; CONF-9411323-
Reference Number:
SCA: 553002; PA: AIX-28:030245; EDB-97:057856; SN: 97001765064
Resource Relation:
Conference: 2. Arab conference on the peaceful uses of atomic energy, Cairo (Egypt), 5-9 Nov 1994; Other Information: PBD: Oct 1995; Related Information: Is Part Of Proceedings of the second Arab conference on the peaceful uses of atomic energy. Part II: A and B; Barakat, M.F.; El-Mashri, S.M. [eds.]; PB: 1199 p.
Subject:
55 BIOLOGY AND MEDICINE, BASIC STUDIES; RICE; FERTILIZERS; NITROGEN 15; AMMONIUM URANATES; CROPS; EGYPTIAN ARAB REPUBLIC; ENVIRONMENT; EXPERIMENTAL DATA; GREENHOUSES; STRAW; UREA
OSTI ID:
455978
Research Organizations:
Atomic Energy Authority, Cairo (Egypt); Arab Atomic Energy Agency (AAEA), Tunis (Tunisia); Middle Eastern Regional Radioisotope Centre for the Arab Countries, Cairo (Egypt)
Country of Origin:
Egypt
Language:
English
Other Identifying Numbers:
Other: ON: DE97620040; ISBN 9973-9927-3-3; TRN: EG9601695030245
Availability:
INIS; OSTI as DE97620040
Submitting Site:
INIS
Size:
pp. 807
Announcement Date:

Citation Formats

Al-Chater, M S. The use of N 15 for studying the relation between the development of the microbial biomass and the remineralization of nitrogen fertilizer by rice. Egypt: N. p., 1995. Web.
Al-Chater, M S. The use of N 15 for studying the relation between the development of the microbial biomass and the remineralization of nitrogen fertilizer by rice. Egypt.
Al-Chater, M S. 1995. "The use of N 15 for studying the relation between the development of the microbial biomass and the remineralization of nitrogen fertilizer by rice." Egypt.
@misc{etde_455978,
title = {The use of N 15 for studying the relation between the development of the microbial biomass and the remineralization of nitrogen fertilizer by rice}
author = {Al-Chater, M S}
abstractNote = {The study aims at determining the mechanism of secondary mineralization of fertilizer N in the form of (N{sup 15} H{sub 14})2 SO{sub 4} which was transformed to the organic N using soil samples taken after a period of 16 weeks from the series of pot experiments. The development of the microbial biomass was studied using the method of Jenkinson and Powlson(1976) which was modified by Bottner et al (1984). Nitrogen mineralization was determined using the Stanford and Smith (1972) method. The study indicated that the values of mineralization constant varied from 0.0012 to 0.027 in different treatments. Accordingly, the half-life of microbial biomass ranged from 6 to 7 months, indicating fast transformation of microbial N as compared with total organic N in the soil which ranged between 7 to 12 years.1 fig., 3 tabs.}
place = {Egypt}
year = {1995}
month = {Oct}
}