Increasing the efficiency of consuming cotton water using refined domestic sewage water under the conditions of applying different irrigation levels

Subject Areas : Water and Environment

Ali Neshat ¹ , Farzin Forouzesh ²

1 - Associate Professor, Faculty of Eng., Department of Water Eng., Kerman Branch, Islamic Azad University. *(Corresponding Author)
2 - M.Sc. irrigation & drainage, Islamic Azad University, Kerman Branch, Kerman, Iran.

Received: 2023-05-09 Accepted : 2023-06-20 Published : 2023-07-23

Keywords: Deficit irrigation, Performance, Water use efficiency, Cotton, the Refined Sewage,

Abstract :

Background and Objective: The water resources restriction introduces the water use efficiency in the agricultural section. In this study, an experiment based on the randomized complete block design with three replications was conducted in order to evaluate the effect of refined sewage on the performance and performance elements of cotton in the city of Kerman.  Material and Methodology: The experiment treatments were considered as three percent water requirement of plant as main factors: I1 =100, I2=85, and I3 =70 and two water quality as secondary factors: Q1 = well water and Q2 = domestic refined sewage.  Findings: The results showed that the 15 percent deficit-irrigation in comparison with the full water requirement when the domestic refined sewage is used in providing the full water requirement of the plant caused 14.8 percent increase in the water use efficiency and economizing 2405m3 water in conditions and the crop performance and morphologic characteristics remain constant relatively.Discussion and Conclusion: Accordingly, the refined sewage can face the water deficit problem of the country and increase the efficiency of irrigation. Also, the 15 percent deficit irrigation in comparison with the full providing of water requirement is recommended in the cotton planting in the Kerman province in order to economize the water use.

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