Cauliflower Water Productivity, Growth, and Yield in Response to Irrigation Management Using Different Water Sources إنتاجية المياه ، نمو وحاصل نبات القرنبيط تحت ادارة نظام الري باستخدام مصادر مختلفة للري

Document Type : Original Article

Authors

1 University of Sulaimani, College of Agricultural Engineering Sciences, Agribusiness and Rural Development Department, Sulaymaniyah City, Kurdistan Region, Iraq Hemin.neima@univsul.edu.iq

2 2University of Baghdad, College of Agricultural Engineering Sciences, Baghdad City, Iraq alaa.salih@coagri.uobaghdad.edu.iq

3 University of Sulaimani, College of Agricultural Engineering Sciences, Natural Resources Department, Sulaymaniyah City, Kurdistan Region, Iraq bayan.rahim@univsul.edu.iq kurd.nazhad@yahoo.com

4 Polytechnic University of Sulaimani, Bakrajo Technical Institute, Sulaymaniyah City, Kurdistan Region, Iraq Niyan.j.qadir@spu.edu.iq

Abstract

The present study aimed to estimate water use efficiency for cauliflower crop production using different irrigation water sources. This research was carried out during the seasons of 2018-2019 in the Research Field Station of the College of Agricultural Engineering Sciences, University of Sulaimani. The experiment was laid out in randomized complete block design with three treatments and three replicants. The cauliflower plants were grown under a surface irrigation system. The three treatments were: (I1) River water irrigation and (I2) Sewage water irrigation during the entire growing seasons from planting to harvest, and (I3) alternate irrigation which meant one river irrigation water followed by two sewage irrigation water, alternatively. The results showed that the means of irrigation water requirements were 441, 457, and 427 mm for river water, sewage water, and alternate irrigation, respectively. It is observed that I3 had significantly higher WUEc (6.33kg m-3) and compared with other treatments I1 and I2 (5.13 and 4.27 kg m-3), respectively. 

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