DEVELOPMENT AND EVALUATION OF ESTIMATION MODELS OF WETTING PATTERN OF DRIPPERS IN A SANDY SOIL WITH HIGH GRAVEL

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MOHAMADZADEH F.; GHEYSARI M.; LANDI E.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Journal of Water and Soil Science Year:2015 | Volume:19 | Issue:71 Page(s): 287-297

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Title

DEVELOPMENT AND EVALUATION OF ESTIMATION MODELS OF WETTING PATTERN OF DRIPPERS IN A SANDY SOIL WITH HIGH GRAVEL

Author(s)

MOHAMADZADEH F. | GHEYSARI M. | LANDI E. | Issue Writer Certificate

Keywords

EMITTERSQ1

LOCALIZED IRRIGATIONQ2

MODELQ2

WETTING PATTERNQ2

Abstract

The objectives of this study were to investigate the effect of dripper discharge and irrigation time on the wetted width in the sandy loam soil with high percentage of gravel and to evaluate previously developed MODELs of estimation of the wetted width in the previous researches. The treatments included three irrigation times (T) of 4, 8 and 12 h and three dripper discharge rates (q) of 2, 4 and 8 l/h, with three replications. The wetted width of each dripper was measured 24 hours after irrigation application. The maximum and minimum wetted widths were 159.8 and 63.5 cm for T12q8 and T4q2, respectively. A linear MODEL was developed as a function of two variables of irrigation time and dripper discharge rate was developed to predict the wetted width in sandy loam soil with high percentage of gravel. The evaluation of recommended MODELs of wetted width for the studied soil showed that only one of six MODELs was accurate enough to estimate wetted width. It can be concluded that the presence of gravels in the soil has a complex effect on width and depth of wetted zone. Thus, it is necessary to measure the wetted width and wetted depth in the field.

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APA: Copy

MOHAMADZADEH, F., GHEYSARI, M., & LANDI, E.. (2015). DEVELOPMENT AND EVALUATION OF ESTIMATION MODELS OF WETTING PATTERN OF DRIPPERS IN A SANDY SOIL WITH HIGH GRAVEL. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 19(71), 287-297. SID. https://sid.ir/paper/14594/en

Vancouver: Copy

MOHAMADZADEH F., GHEYSARI M., LANDI E.. DEVELOPMENT AND EVALUATION OF ESTIMATION MODELS OF WETTING PATTERN OF DRIPPERS IN A SANDY SOIL WITH HIGH GRAVEL. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2015;19(71):287-297. Available from: https://sid.ir/paper/14594/en

IEEE: Copy

F. MOHAMADZADEH, M. GHEYSARI, and E. LANDI, “DEVELOPMENT AND EVALUATION OF ESTIMATION MODELS OF WETTING PATTERN OF DRIPPERS IN A SANDY SOIL WITH HIGH GRAVEL,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 19, no. 71, pp. 287–297, 2015, [Online]. Available: https://sid.ir/paper/14594/en

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