نتایج جستجو برای: superabsorbent

تعداد نتایج: 582  

Journal: :Journal of Polymers and The Environment 2022

In arid areas, the rapid evaporation of water leads to severe shortage for plant growth. Superabsorbent polymers have prospect preventing because its excellent absorbency. However, insufficient in salt resistance, retention, and swelling rate limit application. Herein, we fabricated Hydroxyethyl cellulose-g-(Acrylic acid-co-2-Acrylamido-2-methyl-1-propane sulfonic acid)/laterite (HEC-g-P (AA-co...

2016
D. Khodadadi Dehkordi

Current climate change is projected to have significant effects on temperature and precipitation profiles, increasing the incidence and severity of drought. Drought is the single largest abiotic stress factor leading to reduced crop yields. Given the large share of water use in the agriculture sector and very low efficiency in this sector, selection and development of the new strategies to impr...

Journal: :International Journal of Poultry Science 2011

2017
Chan-Ho Park Xin Rong Li Yang Zhao Rong Liang Jia Jae-Seoun Hur

Desertification is currently a major concern, and vast regions have already been devastated in the arid zones of many countries. Combined application of cyanobacteria with soil fixing chemicals is a novel method of restoring desertified areas. Three cyanobacteria, Nostoc sp. Vaucher ex Bornet & Flahault, Phormidium sp. Kützing ex Gomont and Scytonema arcangeli Bornet ex Flahault were isolated a...

2017
Tamás Fekete Judit Borsa Erzsébet Takács László Wojnárovits

BACKGROUND Superabsorbent hydrogels show a large potential in a wide array of applications due to their unique properties. Carboxymethylcellulose (CMC) is a commercially available water-soluble cellulose derivative of major interest in the hydrogel synthesis. High-energy irradiation allows the chemical crosslinking without the use of crosslinking agents, while the introduction of other natural ...

Journal: :بوم شناسی کشاورزی 0
هادی پیرسته انوشه یحیی امام فاطمه جمالی رامین

today, environment protection and safe crop production are very important. the management of soil elements by bio-fertilizers is considered as important point for sustainable agriculture. mode of action of fertilizers is very different in drought stress conditions. to evaluate biological fertilizers (agrohumic, nitroxin, superabsorbent and vermicompost) and compare them with current chemical fe...

A novel pH-responsive superabsorbent hydrogel based on gelatin was prepared through crosslinking copolymerization of poly (acrylic acid) and poly (itaconic acid). The copolymerization conditions including monomers, initiator, gelatin and crosslinker concentration, reaction temperature, and neutralization percent were systematically optimized to achieve a hydrogel with swelling capacity as high ...

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