نتایج جستجو برای: salt leaching
تعداد نتایج: 89382 فیلتر نتایج به سال:
Salinization is the main characteristic of soils in arid and semi-arid regions which reduce the agricultural potential ofirrigated lands. Therefore, soil reclamation as well as determination of the leaching requirement for salt control is veryimportant for better plant growth. In this study, the effects of leaching on saline soils of Sistan region, southeast of Iranwere examined using unsaturat...
شوری منابع آب و خاک یکی از مهمترین مسایلی است که علاوه بر کاهش محصولات کشاورزی بتدریج سطح زیر کشت را کاهش می دهد. یکی از روش های موثر برای کاهش اثرات سوء شوری اعمال آبشویی و مدیریت آبشویی می باشد. در این مطالعه اثرات کیفیت و کمیت آب آبیاری شامل سه تیمار شوری آب آبیاری 4، 9، 12 دسی زیمنس بر متر و چهار میزان آبشویی صفر 17، 29 و 37 درصد بر عملکرد گندم و برخی پارامترهای شیمیایی خاک و زه آب در خاکی ...
Abstract There is a lack of research on the effect humic acid salinity adsorption and leaching saline-alkali soil. We used as modifier. Saline soil tests were carried out in laboratory field to study water, salt, wheat yield coastal clay saline Compared CK (non-humic treatment), show that water content, salt adsorption, leaching, removal efficiency, all showed trend increasing first then decrea...
Offshore freshened groundwater (OFG) has been documented in many continental margins worldwide. OFG systems are dynamic, expanding and contracting with falling rise sea-levels. long thought to be an important geomorphic agent margins, either via active discharge at the seafloor, which can erode depressions, or generation of excess pore pressure, deform sediments cause slope failure. It also pro...
Macroporous scaffolds composed of biodegradable polymers have found extensive use as three-dimensional substrates either for in vitro cell seeding followed by transplantation, or as conductive substrates for direct implantation in vivo. Methods abound for creation of macroporous scaffolds for tissue engineering, and common methods typically employ a solid porogen within a three-dimensional poly...
Based on an electric potential test, Fe 3+ was selected as intermediate for synergistic salt leaching of valuable metals from spent LFP and NCM cathodes, while keeping PO 4 3− separated in the residue FePO .
Valuable metals from spent LIBs can be recovered through acid leaching and co-precipitation process. In this study, citric was used as a agent to extract Li, Co, Ni, Mn ions LiNi1/3Co1/3Mn1/3O2 (NCM 111) active material by adding sucrose reducing agent. Addition of able increase the efficiency metal leaching. Transition in filtrate are then co-precipitated oxalic obtain metal-oxalate salt. Orga...
Biological improvement is a sustainable approach for saline–alkali land amelioration and utilization. Echinochloa frumentacea (Roxb.) link salt-tolerant gramineous forage, which plays an important role in improving land. The Hetao Ningxia Plain located the upper–middle reaches of Yellow River with large area soil, where E. has potential applications Three experiments were conducted on Pingluo C...
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