AHMADU BELLO UNIVERSITY, ZARIA DEPARTMENT OF AGRICULTURAL ENGINEERING DEVELOPMENT OF DESIGN PROCEDURE FOR BORDER IRRIGATION SYSTEM
AHMADU BELLO UNIVERSITY, ZARIA DEPARTMENT OF AGRICULTURAL ENGINEERING DEVELOPMENT OF DESIGN PROCEDURE FOR BORDER IRRIGATION SYSTEM
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Date
1989-08
Authors
OYEBODE, MUIDEEN 'YEMI ABUBAKAR
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Abstract
A design procedure was developed for border
irrigation based on the need to have very high
efficiencies of water distribution while at the same
time maintaining an acceptable degree of water
application efficiency. The water application
efficiency for the design was estimated from the
analysis of a border strip in which a cut back flow
was not used.
The required time of advance was estimated from
the analysis of the advance and recession functions,
by ensuring that the advance and recession curves be
parallel. The desired initial flow rate was
estimated from the solution of two standard advance
equations, and limiting the advance estimate to an
error of + 2% relative to the expected advance.
The performance evaluations on the border
strips in current use were in general satisfactory.
The analysis in this study also indicates that a
unit stream size of 2.5 l/s/m will give an
acceptable field application efficiency. It is
therefore concluded that the unit stream size be
kept at 2.5 l/s/m for border slope of 0.0/2 percent
obtained from border strip 3.2 - 3,
Description
Being a thesis submitted to the Postgraduate
School, Ahnadu Bello University, in partial fulfillment
of the requirements for the award of M.Sc. degree in
Agricultural Engineering.
AUGUST, 1989
Keywords
IRRIGATION,, DESIGN PROCEDURE