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Factors affecting nitrogen immobilization in soil as estimated by simulation models
Year:
1992
Authors :
Feigenbaum, Sala
;
.
Hadas, Aviva
;
.
Volume :
56
Co-Authors:
Hadas, A., Inst of Soils and Water, ARO, The Volcani Center, Bet Dagan 50250, Israel
Molina, J.A.E., Inst of Soils and Water, ARO, The Volcani Center, Bet Dagan 50250, Israel
Feigenbaum, S., Inst of Soils and Water, ARO, The Volcani Center, Bet Dagan 50250, Israel
Clapp, C.E., Inst of Soils and Water, ARO, The Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
1481
To page:
1486
(
Total pages:
6
)
Abstract:
Different N flow schemes for N immobilization were tested by comparing the kinetics of CO2 evolution, NH+ 4-N, NO- 3-N, inorganic 15N, and organic 15N excess, measured in soils incubated with 200 mg kg-1 of 15N-labeled NH+ 4-N, with data simulated by the computer model NCSOIL structured to represent several pathways of C and N turnover. Cumulative N immobilization was up to 10% of the N added and was greater when NH+ 4 was added to dry soils than when added to preincubated soils. The immobilization was primarily due to the microbial biomass drawing N from the inorganic pool, rather than utilizing N directly from the decomposing soil organic matter. Nitrate formed by nitrification seemed to have also been immobilized. -from Authors
Note:
Related Files :
ammonium
Microbial biomass
NCSOIL
nitrogen immobilisation
Simulation model
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More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
Language:
English
Editors' remarks:
ID:
30580
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:55
Scientific Publication
Factors affecting nitrogen immobilization in soil as estimated by simulation models
56
Hadas, A., Inst of Soils and Water, ARO, The Volcani Center, Bet Dagan 50250, Israel
Molina, J.A.E., Inst of Soils and Water, ARO, The Volcani Center, Bet Dagan 50250, Israel
Feigenbaum, S., Inst of Soils and Water, ARO, The Volcani Center, Bet Dagan 50250, Israel
Clapp, C.E., Inst of Soils and Water, ARO, The Volcani Center, Bet Dagan 50250, Israel
Factors affecting nitrogen immobilization in soil as estimated by simulation models
Different N flow schemes for N immobilization were tested by comparing the kinetics of CO2 evolution, NH+ 4-N, NO- 3-N, inorganic 15N, and organic 15N excess, measured in soils incubated with 200 mg kg-1 of 15N-labeled NH+ 4-N, with data simulated by the computer model NCSOIL structured to represent several pathways of C and N turnover. Cumulative N immobilization was up to 10% of the N added and was greater when NH+ 4 was added to dry soils than when added to preincubated soils. The immobilization was primarily due to the microbial biomass drawing N from the inorganic pool, rather than utilizing N directly from the decomposing soil organic matter. Nitrate formed by nitrification seemed to have also been immobilized. -from Authors
Scientific Publication
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