Manuscript Title:

EVALUATION OF SOME PERFORMANCE PARAMETERS ON PRESSURIZED IRRIGATION SYSTEMS UNDER FIELD CONDITIONS IN DUHOK GOVERNORATE (IRAQI KURDISTAN)

Author:

ABDULSATTAR H. SULAIMAN, AKRAM ABBAS KHALAF

DOI Number:

DOI:10.17605/OSF.IO/S84PD

Published : 2022-12-10

About the author(s)

1. ABDULSATTAR H. SULAIMAN - Department of Soil and water College Agricultural Engineering Sci. University of Duhok.
2. AKRAM ABBAS KHALAF - Department of Soil and water College Agricultural Engineering Sci. University of Duhok.

Full Text : PDF

Abstract

The study was conducted in May–October 2021 at Duhok University, Iraq, where the land adjacent to the College of Agricultural Engineering Sciences, in “Seajay” village fields, latitude 360 55’28’’N, longitude 420 52’ 36’’E and 640 (m.a.s.l), the objectives of the current study are to assess the pressurized irrigation system's efficiency in applying water, intending to lessen irrigation water and managed , a set of performance guidelines and recommendations for the design to attain the highest uniformity and efficiency in water application in the field condition through selecting some parameters (Water depth, D), System coefficient of uniformity, CUS), and (radius of throw, R), a layout of (144 m2 ) was designed according to the length of lateral lines, 36 catch cans were positioned in a grid of (2m) apart, a single nozzle type (5mm) was used under operating pressures of (1.0 - 2.0) bar and riser heights of (1.0 - 2 m), during two- daily runs (morning &evening), and two time periods (May and June-July 2021), statistically using RSBD and (ANOVA ) table with LSD test was applied , It was observed that there was a highly significant effect (P> 0.01) of the riser height and operating pressure on the water depth (mm) in the catch cans, while, it was observed a highly significant effect between the means of CUS % value (P> 0.01) at the riser height parameter, maximum mean of wetted radius among (36 catch cans) was (13.833 m), recorded in the morning with a riser height of (2m) and operated pressure,2 bar in May, 2021,It is not suggested to run the sprinkler irrigation system at wind speeds more than (2.2 - 3.0 ms-1 ).


Keywords

Evaporation, losses, performance, pressure, riser, radius throw, sprinkler.