Efficacy of Boom Systems in Controlling Runoff under Center Pivots and LinearMove Irrigation Systems

Nakawuka, Prossie; Okwany, Romulus O.; Peters, R. Troy; Desta, Kefyalew Girma; Sadeghi, Sayed-Hossein

doi:10.13031/aea.30.10540

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Surface runoff is more likely to occur when FSPS are used if the radial position R a values significantly exceed the soil infiltration rate. Therefore, measures need to be taken to reduce or control surface runoff, such as installing a boomback system [29] or a control apparatus to adjust the sprinkler height [30]. Alternatively, an appropriate polyacrylamide compound could be applied [31].…”

Section: Water Application Ratementioning

confidence: 99%

Effects of Travel Speed and Collector on Evaluation of the Water Application Uniformity of a Center Pivot Irrigation System

Hui

Yan

et al. 2020

Water

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Water application uniformity is an important performance parameter when designing and operating an irrigation system. Performance tests of a center pivot irrigation system equipped with fixed and rotated spray plate sprinklers (FSPS and RSPS, respectively) were conducted at five travel speeds. The effects of travel speed, collector size, and setting height on water application uniformity were evaluated using Heermann and Hein’s coefficient of uniformity (CUH). The CUH was 12.7% higher for the RSPS than the FSPS and decreased as the travel speed increased. Collector size and setting height affected CUH, and CUH was higher when the collector had a large opening cross-section compared to the collector with a small opening cross-section. CUH was higher when the collector with a low setting height compared to when it a high setting height for the FSPS. However, collector setting height had no effect on CUH for the RSPS. The weighted average water application depth (Dw) decreased as the travel speed increased. Collector size had no significant effect on Dw, but Dw with a low collector setting height was larger than the values with a high collector setting height. The water application rate increased as distance from the pivot point increased and was higher for the FSPS than the RSPS. The results will improve the selection of travel speed and collector when the water application uniformity of a center pivot irrigation system is evaluated.

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Section: Water Application Ratementioning

confidence: 99%

Effects of Travel Speed and Collector on Evaluation of the Water Application Uniformity of a Center Pivot Irrigation System

Hui

Yan

et al. 2020

Water

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“…Variable Rate Irrigation (VRI) is a technology that may improve irrigation water productivity (yield produced per unit of water diverted for irrigation), or when combined with sensor feedback, improve crop water productivity (CWP yield produced per unit of evapotranspiration) [1][2][3][4]. Self-propelled sprinkler irrigation (center pivot or lateral move) has irrigated over 12.5 million hectares, replacing traditional techniques like flood and other methods [5][6][7][8][9]. Since center pivot irrigation systems account for most of the sprinkler irrigated agricultural land in Iraq [10], they will be the primary focus of the application of VRI in this paper.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Variable (VRI) Versus Constant Rate Irrigation (CRI): Review

Alomari,

Alfatlawi

2024

IJDNE

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Variable Rate Irrigation (VRI) hold potential for enhancing the efficiency of center pivot and linear movement irrigation by adapting water supply to diverse soil conditions within fields. We evaluated VRI technologies, considering their benefits, drawbacks, challenges, and the performance of Variable (VRI) versus Constant Rate Irrigation (CRI). Studies on VRI technologies have demonstrated significant promise in enhancing crop water productivity with reduced energy demands. Research findings indicate that these technologies have the potential to improve crop water productivity by an average of 20% compared to traditional irrigation methods, while simultaneously reducing energy consumption by approximately 18%. Evidence from studies of VRI supported that water saving of up to 50% can be achieved. However, it's essential to consider that adopting VRI involves higher initial costs due to precision irrigation equipment and infrastructure installation. Despite the upfront investment, the potential long-term advantages in terms of increased crop yields and water conservation may well justify these initial expenses. These technologies effectively mitigate water wastage and environmental pollution. They offer valuable solutions for irrigation scheduling, considering temporal and spatial variations in crop water requirements. The application uniformity of VRI was found to be equal to or greater than 90%. Additionally, VRI systems achieve at least comparable uniformity of irrigation to systems operating under CRI. This review synthesizes diverse information and lays the foundation for informed decision-making, future research, and the advancement of more efficient and environmentally conscious automated irrigation systems.

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Efficacy of Boom Systems in Controlling Runoff under Center Pivots and LinearMove Irrigation Systems

Cited by 2 publications

References 6 publications

Effects of Travel Speed and Collector on Evaluation of the Water Application Uniformity of a Center Pivot Irrigation System

Effects of Travel Speed and Collector on Evaluation of the Water Application Uniformity of a Center Pivot Irrigation System

Performance Assessment of Variable (VRI) Versus Constant Rate Irrigation (CRI): Review

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