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Water retention characteristics of various soil types under diverse rainfed production systems of India

OAR@ICRISAT

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Relation http://oar.icrisat.org/408/
 
Title Water retention characteristics of various soil types under diverse rainfed production systems of India
 
Creator Rao, C S
Rao, K V
Chary, G R
Vittal, K P R
Sahrawat, K L
Kundu, S
 
Subject Agriculture-Farming, Production, Technology, Economics
 
Description The relationships of soil water retention at 1/3 and 15 bar and available water content with soil physicochemical properties were studied in 147 soil samples collected from 21 profiles from rainfed regions of the country. In general Vertisols and Vertic sub-groups showed higher water retention at 1/3 and 15 bars, and available water content. A number of profiles showed an increasing trend in water retention with increase in soil depth. Reduction in water retention from 1/3 bar to 15 bar was greater in Inceptisols/Entisols, Alfisols/Oxisols and Aridisols than in Vertisols. Amount of clay and CEC showed significant positive correlation, while sand showed negative correlation with soil water retention. The relationships between organic carbon and water retention in surface soils were non¬significant. Multiple regression analysis for pooled soils (n=147) showed that EC, CaCO-, sand, clay and CEC contributed to the variations in available water in soil.
 
Date 2009
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/408/1/IJDARD24_1_1-7__2009.pdf
Rao, C S and Rao, K V and Chary, G R and Vittal, K P R and Sahrawat, K L and Kundu, S (2009) Water retention characteristics of various soil types under diverse rainfed production systems of India. Indian Journal of Dryland Agricultural Research and Development, 24 (1). pp. 1-7.