کارایی کاربرد پیش‌کاشت، پیش‌رویشی و پس‌رویشی علف‌کش ایمازتاپیر در مقادیر مختلف در مقایسه با علف‌کش‌های رایج تری‌فلورالین، اتال‌فلورالین و بنتازون مطالعه شد. آزمایش در قالب طرح بلوک‌های کامل تصادفی با 19 تیمار و 4 تکرار در ایستگاه چهار تخته مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان چهارمحال‌ و بختیاری طی سال رزاعی 95-96 اجرا گردید. نتایج نشان داد که پایین‌ترین سطح تراکم علف‌های‌هرز در 15 روز بعد از کاربرد علف‌کش‌ها 2 بوته در متر مربع و در30 روز بعد از کاربرد علف‌کش‌ها 1 بوته در متر مربع مربوط به تیمار پیش‌کاشت ایمازتاپیر به میزان 7/. لیتر در هکتار بود. همچنین بالاترین سطح کاهش ماده‌ خشک علف‌های‌هرزدر 15 و 30 روز بعد از کاربرد علف‌کش‌ها مربوط به تیمار های پیش‌کاشت ایمازتاپیر به میزان 7/. و 1 لیتر در هکتار بود. درصد کاهش ماده خشک جمعیت علف‌های‌هرز برای تیمارهای یادشده بیش از 95 درصد محاسبه شد. بنابراین با توجه به ماده‌ مؤثره کمتر ایمازتاپیر نسبت به سایر علف‌کش‌های کاربردی به میزان 7/. لیتر در هکتار به صورت پیش‌کاشت برای مدیریت علف-های‌هرز مزارع لوبیا توصیه می‌شود. تفاصيل المقالة

Study of Reducing Water Consumption with Irrigation Method in Different Common Bean (Phaseolus vulgaris L.) Cultivars at Shahrekord Region Foroud Salehi1 and Bijan Haghighati-Boroujeni2 1-Crop and Horticultural Sciences Research Department, Chaharmahal and Bakhtiari Agricultural and Natural Resources Research and Education Center, AREEO, Shahrekord, Iran. 2- Soil and Water Sciences Research Department, Chaharmahal and Bakhtiari Agricultural and Natural Resources Research and Education Center, AREEO, Shahrekord, Iran. *Corresponding author E-mail: foroud_salehi@yahoo.com Received: 10 March 2019 Accepted: 20 June 2019 Abstact Common bean is a product cultivated in Chaharmahal and Bakhtiari province with high water consumption and in recent years, due to water scarcity, its cultivation has declined sharply. In this experiment, different methods of reducing water use with changing in irrigation method in bean cultivars was investigated. Factorial experiment was conducted in a randomized complete block design with three replications 2016 and 2017 at Chahartakhte Research Station in Shahrekord region. The first factor was cultivar in three levels (Koosha chitti bean, Yaghut ​​red bean and Dorsa white bean), and the second factor was the irrigation method in three levels (strip-drip irrigation, furrow irrigation, and conventional (flood) irrigation (strip surface irrigation)). Combined analysis results showed that plant height, grain yield, yield components, and water productivity were affected by bean cultivars and irrigation methods. The highest grain yield was obtained from Yaghut red bean cultivar, which had a significant difference with Koosha chitti bean cultivar. The highest water productivity was obtained from Yaghut red bean cultivar, which had a significant difference with other common bean cultivars. The highest water productivity was obtained from strip surface irrigation, which did not have a significant difference with strip drip irrigation, while water use in strip drip irrigation was far less than strip surface irrigation. Therefore, it is possible to use drip irrigation with less water consumption. Keywords: Common bean, Yield, Reduce irrigation, Water productivity. تفاصيل المقالة

Abstract Common bean is an important crop in Chaharmahal and Bakhtiari province with high water requirement and in recent years, due to water scarcity, its cultivation has declined sharply. In this experiment, deficit irrigation with change irrigation method in bean cultivars were investigated. Factorial experiment was conducted in a randomized complete block design with three replications in 2016 and 2017 at Chahartakhte Research Station in Shahrekord region. Cultivar with three levels (Koosha chitti bean, Yaghut ​​red bean and Dorsa white bean) and irrigation method with three levels (strip-drip irrigation, furrow irrigation, and conventional (flood) irrigation (strip surface irrigation)) were used in this experiment. Combined analysis results showed that plant height, grain yield, yield components, and water productivity were affected by bean cultivars and irrigation methods. The highest grain yield was obtained from Yaghut red bean cultivar, which had a significant difference with Koosha chitti bean cultivar. The highest water productivity was obtained from Yaghut red bean cultivar, which had a significant difference with other common bean cultivars. The highest water productivity was obtained from strip surface irrigation, which did not have a significant difference with strip drip irrigation, while water use in strip drip irrigation was far less than strip surface irrigation. Therefore, it is possible to use drip irrigation with less water consumption. Keywords: Common bean, Yield, Reduce irrigation, Water productivity. تفاصيل المقالة