Record Details

Pedotransfer functions to estimate soil water retention at field capacity and permanent wilting point in hot arid western India

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Pedotransfer functions to estimate soil water retention at field capacity and permanent wilting point in hot arid western India
Not Available
 
Creator Santra, P., Kumar, M., Kumawat, R.N., Painuli, D.K., Hati, K.M., Heuvelink, G., Batjes, N.
 
Subject Soil water retention
Dry lands
Western India
Pedotransfer functions
Soil moisture calculator.
 
Description Not Available
Characterization of soil water retention, e.g., water content at field capacity (FC) and permanent wilting
point (PWP) over a landscape plays a key role in efficient utilization of available scarce water resources
in dry land agriculture; however, direct measurement thereof for multiple locations in the field is not
always feasible. Therefore, pedotransfer functions (PTFs) were developed to estimate soil water retention
at FC and PWP for dryland soils of India. A soil database available for Arid Western India (N=370) was
used to develop PTFs. The developed PTFs were tested in two independent datasets from arid regions of
India (N=36) and an arid region of USA (N=1789). While testing these PTFs using independent data
from India, root mean square error (RMSE) was found to be 2.65 and 1.08 for FC and PWP, respectively,
whereas for most of the tested ‘established’ PTFs, the RMSE was >3.41 and >1.15, respectively.
Performance of the developed PTFs from the independent dataset from USA was comparable with
estimates derived from ‘established’ PTFs. For wide applicability of the developed PTFs, a user-friendly
soil moisture calculator was developed. The PTFs developed in this study may be quite useful to farmers
for scheduling irrigation water as per soil type.
Not Available
 
Date 2018-11-12T10:56:31Z
2018-11-12T10:56:31Z
2018-03-27
 
Type Research Paper
 
Identifier 2
https://doi.org/10.1007/s12040-018-0937-0
http://krishi.icar.gov.in/jspui/handle/123456789/10501
 
Language English
 
Relation Not Available;
 
Publisher Indian Academy of Science