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Simulation of N uptake from soil and partitioning in potato plants: model description and sensitivity analysis
Year:
1995
Authors :
Bar-Yosef, Bnayahu
;
.
Fishman, Svetlana
;
.
Volume :
Co-Authors:
  • Svetlana Fishman - Department of Statistics and Operations Research, Agricultural Research Organization, the Volcani CenterBet Dagan, Israel
  • B. Bar-Yosef - Institute of Soils and Water, Agricultural Research Organization, the Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
147
To page:
166
(
Total pages:
20
)
Abstract:

A model is presented describing nitrogen transport and biochemical transformations in soil, the uptake of N by the potato crop and its partitioning between the plant organs. The model enhances an earlier model of the potato crop, which described the grows of leaves, stems, roots and tubers as affected by meteorological conditions assuming of optimal nitrogen status in the plants. Coupling these two submodels enabled a simulation of the influence of N fertilization (amount of N applied, timing of fertilization and the kind of the fertilizer) on the yield of tubers and on nitrate concentration in the tubers. A detailed sensitivity analysis was performed, which identified the most critical parameters in the model for its calibration under different environmental and managerial conditions.

Note:
Related Files :
Nitrate concentration
Plant organs
potato plants
root surface area
Soil layer
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Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Publication Type:
Book chapter
;
.
Language:
English
Editors' remarks:
ID:
53062
Last updated date:
02/03/2022 17:27
Creation date:
12/01/2021 19:56
Scientific Publication
Simulation of N uptake from soil and partitioning in potato plants: model description and sensitivity analysis
  • Svetlana Fishman - Department of Statistics and Operations Research, Agricultural Research Organization, the Volcani CenterBet Dagan, Israel
  • B. Bar-Yosef - Institute of Soils and Water, Agricultural Research Organization, the Volcani Center, Bet Dagan, Israel
Simulation of N uptake from soil and partitioning in potato plants: model description and sensitivity analysis

A model is presented describing nitrogen transport and biochemical transformations in soil, the uptake of N by the potato crop and its partitioning between the plant organs. The model enhances an earlier model of the potato crop, which described the grows of leaves, stems, roots and tubers as affected by meteorological conditions assuming of optimal nitrogen status in the plants. Coupling these two submodels enabled a simulation of the influence of N fertilization (amount of N applied, timing of fertilization and the kind of the fertilizer) on the yield of tubers and on nitrate concentration in the tubers. A detailed sensitivity analysis was performed, which identified the most critical parameters in the model for its calibration under different environmental and managerial conditions.

Scientific Publication
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