Record Details

Wetted Front Advance under Surface Vertical Line Segment Source for Designing Drip Irrigation for Deep Rooted Crops

Indian Agricultural Research Journals

View Archive Info
 
 
Field Value
 
Title Wetted Front Advance under Surface Vertical Line Segment Source for Designing Drip Irrigation for Deep Rooted Crops
 
Creator Verma, Chhedi Lal
Pandey, Ravi Kant
Sushrut Richa
Mishra, Shyam Ji
 
Subject Drip irrigation
Hydraulic conductivity
Line source
Surface irrigation
Wetting pattern
 
Description Surface vertical line segment source is suitable for applying irrigation water to deep rooted plantations. Wetted front advance in horizontal and vertical direction are required for deciding the spacing between emitters, drip laterals and depth of water application. Shape of wetted soil mass in combination of average change in volumetric moisture content as single soil input parameter has led to develop simple models for predicting wetted front advance. Two mathematical models namely Moving Cylinder Model and Cylinder with Hemispheroid Model were developed to describe wetted front advance under surface vertical line segment source water flow geometry. The developed models were tested with sand tank model data especially for lateral and vertical advances of wetted fronts. The values of predicted wetted front radii and depths compared closely with the observed wetted front radii and depths with average percent deviations of 2.47% and 4.84% for Moving Cylinder Model and 2.78% and 7.44% for Cylinder with Hemispheroid Model once the flow geometry is fully developed. Advantage of the models is that they require average change in volumetric moisture content as basic soil input parameter, which is quite easy to determine under field conditions. The developed model may be satisfactorily used for field application in normal as well as salt affected soils.
 
Publisher Indian Society of Soil Salinity and Water Quality, Karnal (Haryana)
 
Date 2024-07-29
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/JoSSWQ/article/view/151020
10.56093/JSSWQ.v16i1.151020
 
Source Journal of Soil Salinity and Water Quality; Vol. 16 No. 1 (2024): JSSWQ; 94-102
0976-0806
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/JoSSWQ/article/view/151020/55217
 
Rights Copyright (c) 2024 Journal of Soil Salinity and Water Quality