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تولید کود اوره آهسته‌رهش به سه روش پوشش‌دهی با روتاری درام، سنتز هیدروژل همزمان و دو مرحله-ای و بررسی عملکرد آنها در کشت گلخانه‌ای گوجه‌فرنگی | ||
| تحقیقات آب و خاک ایران | ||
| دوره 53، شماره 8، آبان 1401، صفحه 1715-1726 اصل مقاله (1.99 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2022.333757.669128 | ||
| نویسندگان | ||
| مهری سلیمی1؛ الهه معتمدی2؛ بابک متشرع زاده* 3؛ حسینعلی علیخانی4؛ حسین میر سیدحسینی5 | ||
| 1گروه علوم خاک، دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج، ایران | ||
| 2استادیار بخش نانوتکنولوژی، پژوهشگاه بیوتکنولوژی کشاورزی ایران، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| 3گروه علوم و مهندسی خاک دانشکده مهندسی و فناوری کشاورزی دانشگاه تهران | ||
| 4گروه علوم و مهندسی خاک دانشکده مهندسی و فناوری کشاورزی دانشگاه تهران کرج ایران | ||
| 5گروه مهندسی علوم خاک، دانشکده مهندسی و فناوری کشاورزی، دانشگاه تهران، کرج، ایران | ||
| چکیده | ||
| امروزه به منظور افزایش کارآیی مصرف کودها و کاهش آلودگی محیط زیست، تولید و مصرف کودهای آهسته‌رهش مورد توجه قرار دارد. هدف از انجام این پژوهش کاربرد سه روش روتاری درام(A)، سنتز هیدروژل همزمان (B) و دو مرحله‌ای (C) برای کاهش سرعت حلالیت کود اوره با استفاده از نشاسته به عنوان یک منبع ارزان قیمت و سازگار با محیط زیست و بررسی اثر مقایسهای این کودها، بر رشد و پاسخ های تغذیهای گیاه گوجه‌فرنگی بود. در ابتدا کودها به سه روش سنتز شدند. نتایج نشان داد که میزان رهاسازی اوره پس از 6 ساعت از کودهای A، B و C در مقایسه با اوره معمولی به‌ترتیب22/29، 33/87 و 08/32 درصد کاهش یافت. مقایسه روش‌های پوشش‌دهی نشان داد که بیشترین مقدار وزن خشک (ریشه و اندام هوایی)، طول ساقه، میزان کلروفیل و تعداد برگ و شاخههای جانبی در تیمار کودی C مشاهده شد. کارآیی مصرف نیتروژن و بازیابی ظاهری نیتروژن در تیمار کودی C به ترتیب 54/36 و 04/27 درصد نسبت به اوره افزایش یافت. بنابراین استفاده از نشاسته به عنوان یک بیوپلیمر طبیعی در ساختار این کودها باعث کاهش اتلاف نیتروژن و آلودگی محیط زیست می شود. | ||
| کلیدواژه‌ها | ||
| پوشش دهی؛ روتاری درام؛ کود آهسته رهش؛ گوجه فرنگی؛ نانوکامپوزیت | ||
| عنوان مقاله [English] | ||
| Production of Slow Release Urea Fertilizer by Three Methods of Rotary Drum Coating, Insitu and Two-Stage Hydrogel Synthesis and Evaluation Their Performance in Tomato Greenhouse Cultivation | ||
| نویسندگان [English] | ||
| Mehri Salimi1؛ Elaheh Motamedi2؛ Babak Motesharezadeh3؛ Hossein Ali Alikhani4؛ Hossein Mirseyed Hosseini5 | ||
| 1Faculty of Agricultural Engineering and Technology | ||
| 2Nano technology Department,, Agriculture Biotechnology Research Institute of Iran | ||
| 3Soil Science Department, University of Tehran, Karaj, Iran | ||
| 4Soil Science Department, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj, Iran. | ||
| 5Soil Science Department, Faculty of Agricultural Engineering & Technology University of Tehran, Karaj, Iran | ||
| چکیده [English] | ||
| Today, in order to increase the efficiency of fertilizer use and reduce environmental pollution, the production and consumption of slow-release fertilizers is considered. The objective of the current study was to apply three methods of rotary drum (A), insitu hydrogel synthesis (B) and two-stage (C) to reduce the solubility rate of urea fertilizer using starch as a cheap and environmentally friendly source and evaluation the comparative efficiency of these samples on the growth and nutritional responses of tomatoes. At first, fertilizers were synthesized in three methods. Then, the effects of synthesized samples (A,B and C) were compared with un-coated urea granules on morphological characteristics of tomatoes. A factorial based on completely randomized blocks design were utilized with three replications in 2020 in greenhouse conditions, at 180 and 420 kg/ha of each fertilizer treatment. The results showed that urea release rate after 6 hours from synthesized (A, B and C) fertilizers was reduced 87.33, 32.08 and 29.22%, respectively compared to un-coated urea. Comparison of coating methods showed that the highest amount of dry weight (roots and shoots), stem length, chlorophyll content and number of leaves and lateral branches were observed in C fertilizer treatment. Nitrogen use efficiency and apparent nitrogen recovery in C fertilizer treatment increased 36.54 and 27.04% compared to urea, respectively. The use of starch as a natural biopolymer in the structure of these fertilizers reduces nitrogen loss and environmental pollution. | ||
| کلیدواژه‌ها [English] | ||
| Coating؛ Nanocomposite؛ Slow release fertilizer؛ Rotary Drum, Tomato | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 531 تعداد دریافت فایل اصل مقاله: 415 |
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