IMPROVING THE DISTRIBUTION UNIFORMITY OF AIR FLOW RATES FROM EMITTERS IN OXYGENATION SYSTEMS

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TORABI MANOUCHEHR; MIDMORE DAVID J.; WALSH KERRY B.; BHATTARAI SURYA P.

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Journal: JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION Year:2014 | Volume:4 | Issue:1 Page(s): 79-90

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Title

IMPROVING THE DISTRIBUTION UNIFORMITY OF AIR FLOW RATES FROM EMITTERS IN OXYGENATION SYSTEMS

Author(s)

TORABI MANOUCHEHR | MIDMORE DAVID J. | WALSH KERRY B. | BHATTARAI SURYA P. | Issue Writer Certificate

Keywords

AIR BUBBLEQ2

CHRISTIANSEN UNIFORMITY COEFFICIENTQ2

OXYGENATIONQ2

SURFACTANTQ1

Abstract

Research carried out so far indicates that OXYGENATION is capable of effectively increasing crop yield because of supplying sufficient oxygen in the rhizosphere. However, the severe non-uniformity associated with the distribution of emitter air flow rates along laterals is a major deficiency. This research explored the effect of individual and/or concurrent use of SURFACTANT with a final concentration of 32 ppm to irrigation water and/or insertion of turbulence-inducer sealing plugs preceding connectors on the uniformity of emitter air flow rate distribution. The results indicated that addition of SURFACTANT raised the CUC of the emitter air flow rates from -83% to 37% for the asymmetric connectors and from 1% to 23% for the symmetric connectors, respectively, over the controls without SURFACTANT. Addition of SURFACTANT to OXYGENATION systems with symmetric connectors of 9.5 and 7 mm long led to a rise in CUC from 1% to 23%, and from -41% to 39%, respectively. Compared to aerated water without SURFACTANT or sealing plugs, concurrent use of SURFACTANT and turbulent-inducer sealing plugs in OXYGENATION systems with symmetric and asymmetric connectors caused a rise in the CUC of AIR BUBBLE deliveries from -82% to 48%, and from 1% to 53%, respectively.

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APA: Copy

TORABI, MANOUCHEHR, MIDMORE, DAVID J., WALSH, KERRY B., & BHATTARAI, SURYA P.. (2014). IMPROVING THE DISTRIBUTION UNIFORMITY OF AIR FLOW RATES FROM EMITTERS IN OXYGENATION SYSTEMS. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, 4(1), 79-90. SID. https://sid.ir/paper/232254/en

Vancouver: Copy

TORABI MANOUCHEHR, MIDMORE DAVID J., WALSH KERRY B., BHATTARAI SURYA P.. IMPROVING THE DISTRIBUTION UNIFORMITY OF AIR FLOW RATES FROM EMITTERS IN OXYGENATION SYSTEMS. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION[Internet]. 2014;4(1):79-90. Available from: https://sid.ir/paper/232254/en

IEEE: Copy

MANOUCHEHR TORABI, DAVID J. MIDMORE, KERRY B. WALSH, and SURYA P. BHATTARAI, “IMPROVING THE DISTRIBUTION UNIFORMITY OF AIR FLOW RATES FROM EMITTERS IN OXYGENATION SYSTEMS,” JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, vol. 4, no. 1, pp. 79–90, 2014, [Online]. Available: https://sid.ir/paper/232254/en

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