In arid and semi-arid climates, water scarcity nutrient availability are major constraints for food production. Excess fertilization to make up the limited in dry soils leads nitrogen runoff groundwater contamination. Reducing leaching into surface while providing adequate nutrition remains a challenge. Superabsorbent polymers (SAPs) can reduce loss improve retention therefore minimize increase...

Heavy  metal  pollution  is  propagating  throughout  the  world  with  the  enlargement  of  industrial activities.  The  elimination  of  heavy  metal  ions  from  industrial  wastewaters  has  drawn  much attention  because  of  the  hazardous  effects  of  the  heavy  metal  ions  on  different  organisms. According to these facts, poly (2, 2, 3, 3- tetracyanocyclopropyl) phenyl acryl...

In the present paper, attention is paid to synthesis and investigation swelling behavior of a superabsorbent hydrogel composite based on Pectin (Pec) and polyacrylonitrile (PAN) in the presence Kaolin powder. The physical mixture of Pec, Kaolin and PAN were hydrolyzed by NaOH solution to yield H-Pec-poly (sodium acrylate-co-acrylamide)/Kaolin superabsorbent hydrogel composite. A proposed mechan...

Abstract Most species of arbuscular mycorrhizal fungi (AMF) are propagated with a host plant in pot culture. However, the soil matrix makes it difficult to monitor establishment and development symbiosis. In vitro culturing using Ri T-DNA transformed roots provides clear medium sterile environment which offsets constraints matrix. Nevertheless, conditions provide very different growing compared...

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...

Semi-interpenetrating polymer network (semi-IPN) technology was introduced in order to improve the gel strength and salt resistance of itaconic acid (IA)-based superabsorbent polymers (SAPs). A semi-IPN SAP based on IA 2-acrylamido-2-methyl-1-propanesulfonic (AMPS) synthesized. Polymerization performed using a one-pot method an aqueous solution presence polyvinyl alcohol (PVA). The structural t...