Impact of phosphorus amendments on cadmium uptake by sunflower inoculated with Rhizophagus irregularis mycorrhizae in a contaminated soil
- سال انتشار: 1401
- محل انتشار: فصلنامه پیشرفت ها در فناوری محیط زیست، دوره: 8، شماره: 3
- کد COI اختصاصی: JR_AET-8-3_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 150
نویسندگان
Department of Soil and Water Sciences, Faculty of Agriculture, Shahrood University of Technology, Shahrood, Semnan Province, Iran
Department of Soil and Water Sciences, Faculty of Agriculture, Shahrood University of Technology, Shahrood, Semnan Province, Iran
Department of Agronomy, Faculty of Agriculture, Shahrood University of Technology, Shahrood, Semnan Province, Iran
چکیده
Immobilization of heavy metals (HMs) by phosphorus compounds is an efficient and cheap technique in decreasing their phytoavailability in soil, depending highly on the type and rate of HMs. Greenhouse research was performed to evaluate the impact of various amendments on cadmium (Cd) absorbed by sunflower plants in HM-contaminated soil collected from a mining area. The experiment was performed as a randomized complete block design with two factors, namely mycorrhizal fungi (Rhizophagus irregularis) and amendments (di-ammonium phosphate, humic acid, bone meal, and humic acid +bone meal), in three replications. The results showed that applying all the amendments reduced the amount of soluble Cd and Cd۲+ species in the soil. The highest decreases occurred with the di-ammonium phosphate treatment (۵۱% for soluble Cd), probably through decreasing pH and increasing phosphorus solubility, as a consequence, forming insoluble Cd phosphates. Mycorrhizal inoculation significantly decreased (p≤۰.۰۵) the Cd in the soil solution and the plant shoot but increased it in the plant root, probably through Cd accumulation in the fungal hyphae as Cd phosphates. The use of phosphate compounds is strongly recommended in order to immobilize Cd in highly contaminated sites.کلیدواژه ها
Endomycorrhizae, fungus, organic materials, phosphorus fertilizersاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.