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

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

PDF - Published Version Restricted to ICRISAT users only Download (1MB) | Request a copy

Abstract

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.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Others > Soil Science Others > Climate Change
Depositing User:	Library ICRISAT
Date Deposited:	14 Dec 2011 03:24
Last Modified:	14 Dec 2011 03:24
URI:	http://oar.icrisat.org/id/eprint/4109
Official URL:
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

View Statistics

Actions (login required)

View Item