همکاری با انجمن علمی مدیریت و کنترل مناطق بیابانی ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشیار، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اصفهان، ایران

2 استادیار پژوهش، بخش تحقیقات مرتع، موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

3 مربی پژوهش، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اصفهان

چکیده

این پژوهش با هدف بررسی بهترین زمان کاشت و روش کاشتA. podolobus  به صورت طرح اسپلیت پلات در قالب طرح پایه بلوک کامل تصادفی با سه تکرار در ایستگاه حنای سمیرم وابسته به مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان طی سال‏های 1392 تا 1394 اجرا شد. فاکتور اصلی، زمان کاشت (پاییزه و بهاره) و فاکتور فرعی روش کاشت (بذرکاری خطی و روش بذرکاری بانکت‏های هلالی) بود. نتایج نشان‏دهنده اثر معنی‏دار زمان کاشت، روش کاشت و اثرهای متقابل آن روی صفت درصد استقرار بود. درصد استقرار کشت پاییزه 28/14 و بهاره 78/27 درصد بدست آمد. کمترین درصد استقرار با 35/6 درصد در روش بذرکاری و بیشترین آن با 71/35 درصد در روش بانکت‏های هلالی مشاهده گردید. اثرهای متقابل این صفت نشان داد که کمترین درصد استقرار در تیمار کشت بهاره و روش بذرکاری (76/4 درصد) و بیشترین آن در روش بانکت‏های هلالی و کشت بهاره (61/47 درصد) مشاهده شد. نتایج گویای مناسب‏تر بودن روش بانکت‏های هلالی در هر دو فصل کشت بهاره و پاییزه بود. عملکرد علوفه بشدت تحت تأثیر فصل کاشت قرار گرفت و در کشت پاییزه و بهاره به‌ترتیب برابر 7 و 6/15 گرم در بوته بود. عملکرد علوفه در روش بذرکاری 5/9 گرم و در بانکت‏های هلالی 16/13 گرم در بوته بدست آمد. دامنه تغییرات این صفت از 6 گرم در کشت پاییزه و روش بذرکاری تا 33/18 گرم در بوته در کشت بهاره و روش بانکت‏های هلالی متغیر بود. در مجموع نتایج نشان داد که برای کاشت این گونه در مناطق نیمه استپی کاشت بهاره و به‌صورت بانکت‏های هلالی و بذرهای بدون پوشینه برای حداکثر استقرار مناسب است.

کلیدواژه‌ها

عنوان مقاله [English]

Study of cultivation and establishment methods on A. podolobus in Semirom region of Esfahan province, Iran

نویسندگان [English]

  • Hosein Zeinali 1
  • Mohammad Fayaz 2
  • Leyli Safaei 3

1 Associate Professor, Research Division of Natural Resources, Isfahan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Isfahan, Iran

2 Assistant Professor, Rangeland Research Division, Research Institutes of Forest and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran

3 Research Instructor, Research Division of Natural Resources, Isfahan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Isfahan, Iran

چکیده [English]

Abstract
     The aim of this study was to investigate the best planting time and method of A. podolobus. The experiment was conducted as a split plot design based on a completely randomized block design with three replications at Hana Semirom station, Isfahan Agricultural and Natural Resources Research Center during 2013 to 2015. Main factor was sowing date (fall and spring) and sub plot was sowing method (linear seeding and crescent shaped bounds). The results showed a significant effect of planting time, planting method, and its interactions on the percentage of establishment. The percentage of establishment of fall cultivation was 14.28% and spring planting was 27.78%. The lowest percentage of establishment was observed with 6.35% in sowing method and the highest with 35.71% in crescent banquet method. The interaction of this trait showed that the lowest percentage of establishment was observed in spring cultivation treatment and seeding method (4.76%) and the highest percentage was observed in crescent and spring cultivation methods (47.61%). The results indicated that crescent-shaped bounds were more appropriate in both spring and fall cultivation. Forage yield was strongly affected by the planting season and in fall and spring cultivation and were 7 and 15.6 grams per plant, respectively. Forage yield was 9.5 g in seeding method and 13.16 g in crescent bounds. The range of changes in this trait ranged from 6 g in fall cultivation and seeding method to 18.33 g per plant in spring cultivation and crescent bounds method. In general, the results showed that for planting this species in semi-steppe areas, spring planting in the form of crescent bounds and non-coating seeds is suitable for maximum establishment

کلیدواژه‌ها [English]

  • Astragalus podolobus
  • crescent shaped bounds
  • establishment percentage
  • and herbage yield
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