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A Comparative Study of Standard Center Pivot and Growers-Based Modified Center Pivot for Evaluating Uniformity Coefficient and Water Distribution
- Source :
- Agronomy, Vol 11, Iss 1675, p 1675 (2021), Agronomy, Volume 11, Issue 8
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- The center pivot irrigation system is a type of irrigation technology used to apply water effectively and uniformly over a wide variety of areas and topographies. These irrigation systems’ uniformity of water application greatly affects water use, energy consumption, and crop production. Performance tests of the standard lateral galvanized and modified polyethylene plastic pipes in the center pivot irrigation systems were conducted in different regions of Saudi Arabia. Water distribution depths along the laterals, coefficient of uniformity (CU), and distribution uniformity of the low quarter (DU) were determined. The results revealed that profiles of water distribution ranged from 4 to 14 mm for the standard-center pivot irrigation systems, while those for the modified-center pivot irrigation systems ranged from 6.5 to 50 mm. Standard-center pivot irrigation systems’ CU values ranged from 74 to 90%, with an average of 86%. In comparison, the modified-center pivot irrigation systems’ CU values ranged from 62 to 83%, with an average of 78%. The DU values ranged from 60 to 82% for the standard-center pivot irrigation systems, with an overall average of 77%. For the modified-center pivot irrigation systems, the DU values, in contrast, ranged from 31 to 75%, with an average of 65%. Thus, the accuracy and uniformity of the standard-center pivot irrigation systems are superior to those that have been modified. Additionally, a statistical model was developed to investigate the relationship between the water losses and the main climatic factors under field operating conditions. Therefore, the study results are expected to draw attention to standard lateral pipes’ value on the one hand and demonstrate the detrimental consequences of growers’ incorrect practices in pivot irrigation systems, motivating them to take strong action against these activities, on the other hand.
- Subjects :
- Irrigation
business.industry
center pivot
Distribution (economics)
Agriculture
Agricultural engineering
water conservation
lateral configuration
Soil gradation
MLR
distribution uniformity
Center pivot irrigation
Water conservation
Crop production
coefficient of uniformity
Distribution uniformity
business
Agronomy and Crop Science
Water use
Mathematics
Subjects
Details
- Language :
- English
- ISSN :
- 20734395
- Volume :
- 11
- Issue :
- 1675
- Database :
- OpenAIRE
- Journal :
- Agronomy
- Accession number :
- edsair.doi.dedup.....242d87d00c40a0d1178257fb664cc5a8