مقایسه عملکرد و بهره‌وری آب گیاه ریحان با روش آبیاری سطحی و زیرسطحی در گلدان

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه مهندسی آب- پردیس ابوریحان- دانشگاه تهران-تهران- ایران

چکیده

لزوم استفاده بهینه از منابع آب با توجه به کاهش منابع آبی در سال­های اخیر، اهمیت انجام تحقیقات در مورد بهبود بهره­وری و عملکرد را بیش از پیش نشان می­دهد. آبیاری زیرسطحی گلدانی، یکی از روش­های مناسبی است که در تحقیقات اخیر کارایی آن به اثبات رسیده است. از آنجایی که تأثیر روش آبیاری زیرسطحی در گلخانه­ها بسیار کم مورد بررسی قرار گرفته است، در این پژوهش به مقایسه بهره­وری دو روش آبیاری سطحی و زیرسطحی در گلدان برای گیاه ریحان در گلخانه پرداخته شد. همچنین از دو بستر کشت مختلف خاک کوکوپیت-پرلیت و کوکوپیت-پرلیت و دو عمق بستر در گلدان 30 و 50 سانتی‌متر استفاده شد. نتایج نشان داد در عملکرد تر و خشک گیاه بین دو روش آبیاری اختلاف معنی­دار در سطح پنج درصد وجود ندارد. با این حال مقادیر عملکرد در بستر خاک-کوکوپیت-پرلیت نسبت به بستر کوکوپیت-پرلیت 25 درصد بیشتر بود.  با توجه به میزان آب مصرفی، میزان بهره­وری در بستر خاک-کوکوپیت-پرلیت به میزان 13 درصد افزایش یافت. همچنین نتایج نشان داد که میزان بهره­وری مصرف آب در روش آبیاری زیرسطحی گلدانی به مراتب بیشتر از آبیاری سطحی بود و به ترتیب مقادیر 84/10 و 86/5 گرم بر لیتر بود برای دو روش آبیاری بدست آمد که در سطح یک درصد با یکدیگر تفاوت معنی­داری داشتند.

کلیدواژه‌ها


عنوان مقاله [English]

Comparison of Yield and Water Productivity in Surface and Subsurface Irrigation in Pots

نویسندگان [English]

  • Hasan Karimi
  • Mahmoud Mashal
  • Seyyed Ebrahim Hashemi Garmdareh
Water Engineering Department -., College of Aburaihan - University of Tehran- Tehran- Iran
چکیده [English]

It’s so important to conducting research on improving productivity and performance due to the reduction of water resources and need for optimal use of water resources, in recent years. One of the suitable methods is potted subsurface irrigation that its effectiveness has been proven in recent researches. Due to less studied the effect of subsurface irrigation in greenhouses, in this study, the productivity of two methods of surface and subsurface irrigation in pots for basil in the greenhouse was compared. Also, two different culture media (soil-cocopeat-perlite and cocopeat-perlite) and two-bed depths in pots (30 and 50 cm) were used. The results showed that there was no significant difference between the two irrigation methods at the level of five percent in wet and dry crop yield. However, the yield values were 25% higher in the soil-cocopeat-perlite bed than the cocopeat-perlite bed. According to the amount of water used, the water productivity increased 13 % in the soil-cocopeat-perlite bed. The results also showed that the water productivity of potted subsurface irrigation and surface irrigation were 10.84 and 5.86 g/l, respectively, which were significantly differ from each other at the level of one percent.

کلیدواژه‌ها [English]

  • Basil
  • Water consumption
  • root weight
  • Water use efficiency
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