PERFORMANCE EVATUATTON OF IRRIGATION WATER DISTRIBUTION SYSTEMS OF THE KANO RIVER PROJECT
PERFORMANCE EVATUATTON OF IRRIGATION WATER DISTRIBUTION SYSTEMS OF THE KANO RIVER PROJECT
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Date
1995-05
Authors
GAMALIEL, A.G.
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Abstract
The study was conducted during the 1992/93
irrigation season at the Kadawa sector of the Kano River
Project (KRP) , with the primary aim of evaluating the
performance of a part of the distribution system
(distributary canal and field channels), irrigation water
distribution and allocation methods and the relative
water supply (RWS) index, as they affect control,
operation and equity. Block 3F7 was selected as the
experimental site. Stage measurements were monitored at
the selected stations on both the distributary canal,
field channels and farm units. Discharge was obtained
from calibrated structures (cilt-throat flumes) . The
water conveyance efficiencies, and losses were determined
for each of the selected stations.
The results obtained from the study showed that
84 1/s on the average was recorded as discharge for the
distributory canal (DC), with conveyance efficiency and
losses of 87% and 14 1/s, respectively. The average
field channel discharge of 15 1/s was recorded as against
a design discharge of 28 1/s, while the conveyance
efficiency and losses were 65% and 4 1/s, respectively.
The result obtained for the various farm units showed
significant variations, both at the head-end and tail-end
of the farm, hence low equity of distribution as a result
of low water supply.
The field evaluation of the RWS, showed that all the
plots recorded low values, which indicates under
irrigation in all the plots. However, the high
performance of field crops and high yield recorded was
due to contribution from high water table recorded in
most parts of the project area. The 1.5 t/ha yield for
wheat on the avarage, further confirmed the high
performace of the crops
Description
A Thesis submitted to the Postgraduate School,
AHMADU BELLO UNIVERSITY, ZARIA
In partial fulfillment of the requirements for the
award of the degree of master of science in
Agricultural Engineering
DEPARTMENT OF AGRICULTURAL ENGINEERING
Faculty of Engineering
Ahmadu Bello University, Zaria
Nigeria
MAY, 1995
Keywords
EVATUATTON,, IRRIGATION,, WATER,, DISTRIBUTION,, KANO RIVER PROJECT