اثر تاریخ کاشت و کود اوره بر برخی صفات مورفولوژیک، عملکرد و اجزای عملکرد گندم در شرایط آب و هوایی شهرستان هشترود

نوع مقاله: پژوهشی

نویسندگان

1 گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران

2 باشگاه پژوهشگران جوان و نخبگان، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران

3 پژوهشکده ژنتیک و زیست‌فناوری کشاورزی طبرستان، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران

10.22034/aej.2017.533201

چکیده

در میان روش­ های زراعی، زمان کاشت و کوددهی اوره از فاکتورهای اصلی هستند که تا حد زیادی می­ توانند عملکرد را محدود کنند. به منظور بررسی اثر تاریخ کاشت و کود اوره بر برخی صفات مورفولوژیک و عملکرد گندم، آزمایشی در سال زراعی 1394 در مزرعه ­ای واقع در شهرستان هشترود اجرا شد. آزمایش به صورت کرت­ های خرد شده در قالب طرح بلوک ­های کامل تصادفی در سه تکرار اجرا گردید. تیمارهای آزمایشی شامل چهار تاریخ کاشت 5، 12، 19 و 26 مهرماه و سه سطح کود اوره 0، 50 و 100 کیلوگرم در هکتار به ترتیب در کرت­ های اصلی و فرعی قرار گرفتند.‌ ارتفاع بوته، طول سنبله، طول پدانکل و طول برآمدگی پدانکل با افزایش سطح کود اوره افزایش و تأخیر در کاشت، سبب کاهش مقدار آنها شد. همچنین تأخیر در کاشت، وزن 1000 دانه و عملکرد دانه در واحد سطح گندم را کاهش داد. کاربرد کود اوره تعداد دانه در سنبله، وزن هزار دانه، عملکرد دانه و شاخص برداشت را افزایش داد. در مجموع کاشت گندم در تاریخ 5 مهرماه و استفاده از 100 کیلوگرم در هکتار کود اوره، در منطقه هشترود قابل توصیه می­ باشد

کلیدواژه‌ها


عنوان مقاله [English]

Effect of sowing date and urea fertilizer on some morphological traits, yield and yield components of wheat in Hashtroud, Iran climate condition

نویسندگان [English]

  • Iraj Yaghoubian 1
  • Saeid Ghassemi 2
  • Yasser Yaghoubian 3
1 Department of Plant Ecophysiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
2 Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran
3 Genetics and Agricultural Biotechnology Institute of Tabarestan, Sari Agricultural Sciences and Natural Resources University, Sari, Iran
چکیده [English]

Among the agronomic practices, planting date and nitrogen fertilization are the prime factors that remarkably limit crop production. To evaluate the effect of sowing date and nitrogen fertilizer on some morphological traits and yield of wheat, a field experiment was conducted at a Farm of Hashtroud, Iran in 2015 growing season. The experiment was conducted based on randomized complete block design in split-plot experiment with three replications. Experimental treatments included Four sowing date of Sept. 27, Oct. 4, Oct. 11, and Oct. 18 as main plot and three nitrogen fertilizer rates of 0, 50 and 100 kg/ha as sub plots. Plant height, spike length, peduncle length and extrusion peduncle length increased with nitrogen fertilizer rates but, delay in sowing date decreased these traits. Also, delaying in sowing date decreased 1000 grains weight and grain yield per hectare. Nitrogen application significantly increased seeds per spike, 1000 grains weight, grain yield and harvest index. In general, wheat cultivation on Sept. 27th and using 100 kg/ha nitrogen fertilizer is recommended in Hashtroud region.

کلیدواژه‌ها [English]

  •  Azar 2
  •  cold region
  •  delayed cultivation
  •  nitrogen fertilizer
  •  winter wheat

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