حمید زارع ابیانه فرزانه حیدری غلام رضا حیدری مهدی جوزی


در این پژوهش گلدانی، اثر سه سطح صفر (A0)، سه (A1) و پنج گرم (A2) سوپرجاذب اکوازورب در هر کیلوگرم خاک، سه سطح 70 (W1)، 85 (W2) و 100 (W3) درصد نیاز آبیاری و دو سطح 75 (F1) و 100 (F2) درصد نیاز کود نیتروژنی بر برخی صفات گیاه فلفل دلمه بررسی شد. آزمایش به‌صورت فاکتوریل در قالب طرح بلوک‌های کامل تصادفی در 18 تیمار و سه تکرار انجام یافت. نتایج بیان‌گر معنی‌داری اثر تیمارهای سوپرجاذب و آبیاری بر تمامی مولفه‌ها به‌جز قطر ساقه بود. در بین تیمارهای سوپرجاذب، بیشترین مقادیر عملکرد میوه با 2/666 گرم و بهره‌وری آب 36/12 کیلوگرم بر مترمکعب در تیمار A2 به‌دست آمد. در بین تیمارهای آبیاری نیز بیشترین مقادیر عملکردهای ذکر شده به‌ترتیب با 81/621 گرم در تیمار W3 و 57/10 کیلوگرم بر مترمکعب در تیمار W1 به‌دست آمد. اثر تیمارهای کودی نیز بر وزن اندام هوایی، ریشه و عملکرد میوه معنی‌دار شد. بیشترین عملکرد میوه به مقدار 70/638 گرم در تیمار F2 به‌دست آمد. اثر متقابل دو متغیر آب با سوپرجاذب نیز با تاثیر بر مولفه‌های وزن تر و خشک اندام هوایی و زیرزمینی و بر عملکرد و بهره‌وری آب، سبب حصول بیشترین مقادیر عملکرد میوه (65/916 گرم) و بهره‌وری (55/14 کیلوگرم بر مترمکعب) در تیمار A2W3 شد. اثرات متقابل سوپرجاذب و کود نشان دادکه بیشترین مقدار عملکرد و بهره‌وری آب معادل 51/670 گرم و 44/12 کیلوگرم بر مترمکعب در تیمار A2F2 به‌دست آمد. اثرات متقابل آب و کود نیز نشان دادکه بیشترین مقدار عملکرد و بهره‌وری آب معادل 59/625 گرم در تیمار W3F2 و 32/12 کیلوگرم بر مترمکعب در تیمار W1F2 به‌دست آمد. اثر متقابل سه متغیر سوپرجاذب، آب و کود بر کلیه صفات مورد بررسی غیرمعنی‌دار شد.

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ارجاع به مقاله
زارع ابیانهح., حیدریف., حیدریغ. ر., & جوزیم. (2019). اثر سوپرجاذب، کود نیتروژنی و تنش خشکی بر عملکرد و بهره‌وری آب گیاه فلفل دلمه‌ای. آب و خاک, 463-476. https://doi.org/10.22067/jsw.v0i0.76431
نوع مقاله
علمی - پژوهشی