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Simulation of Rooting Profile Using Soil Properties, Crop Characteristics, and Climatic Data

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Relation http://oar.icrisat.org/4109/
 
Title Simulation of Rooting Profile Using Soil Properties, Crop Characteristics, and Climatic Data
 
Creator Devi, G
Rao, T P
Adu-Gyamfi, J J
Katayama, K
Ito, O
 
Subject Soil Science
Climate change
 
Description Observation and simulation of root development provides information on the soil resource utilization. Studying root growth with the support of a model helps envisage time-course changes in root development under varying environmental conditions. The quantitative root distribution with depth and over time is very essential for estimating the resource utilization. A modeling exercise was performed to characterize root development of five major crops in the semi-arid tropics (pigeonpea, cowpea, groundnut, sorghum, and pearl millet) using weather data, soil properties, and crop parameters. The model simulated the rooting profile for the investigated cereals and legumes adequately with the except ion of pigeonpea. Pigeonpea showed a characteristic behavior of deep rooting nature on an Alfisol. However, the model was unable to simulate the crop'> ability of penetrating and spreading it> roots extensively into soil irrespective of a higher bulk density.
 
Publisher Japan International Research Center for Agricultural Sciences
 
Date 1996
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4109/1/CP_114.pdf
Devi, G and Rao, T P and Adu-Gyamfi, J J and Katayama, K and Ito, O (1996) Simulation of Rooting Profile Using Soil Properties, Crop Characteristics, and Climatic Data. Series on International Agricultural Research, 3. pp. 573-584. ISSN 1341-3899