Hydrogel is basically a water absorbing polymer, which are classified as cross-linked, absorb aqueous solutions through hydrogen bonding with water molecules. Agricultural hydrogels are referred to as water retention granules because they swell to many times their original size when they come in contact with water. It has been widely proposed over the last 40 years for agricultural use with the aim to ameliorate water availability for plants, by increasing water holding properties of growing media (soils or soilless substrates). | Nội dung Text Prospects and applications of hydrogel technology in agriculture
