Research Article
Dec 1970
Furrow Irrigation with Decreasing Inflow Rate
Authors: Radhey Lal and Amarendra C. PandyaAuthor Affiliations
Publication: Journal of the Irrigation and Drainage Division
Volume 96, Issue 4
Abstract
A mathematical model has been developed to provide the manner in which the inflow stream size at the upstream end of a furrow must be reduced stepwise according to the infiltration characteristics of the soil so as to eliminate runoff losses from the downstream end and keep the deep percolation losses to the minimum. Owing to the high infiltration rate in the beginning the initial stream size may be large and kept constant till water reaches the end of furrow length. The total period of irrigation is divided into equal intervals of advance time. Equation for calculating the factors by which the initial stream size should be multiplied to get inflow rates during subsequent time intervals has been developed. Graphs have been presented for simplifying the calculations. The method of practical application of the analysis is illustrated by an example.
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Published In
Journal of the Irrigation and Drainage Division
Volume 96 • Issue 4 • December 1970
Pages: 451 - 460
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Dec 1970
Published online: Feb 11, 2021
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Authors
Affiliations
Radhey Lal
Dean, College of Agricultural Engrg. and Technology, Orissa Univ. of Agriculture and Technology, Bhubaneswar, India
Amarendra C. Pandya
Prof. and Head, Agricultural Engrg. Dept., Indian Institute of Technology, Kharagpur, India
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