... biological. 2.preserve water and store nutrients SAP for agriculture, water absorbent polymer:can swell hundreds ... absorb, store and release water and nutrient for promoting plant growth even against pressure. It is widely ... WRA-0,WRA-1,WRA-2,WRA-3 for forests,small plants,laying turf and seeds. Dry ... potting mix. Pot up plant then water in thoroughly.(Please see "case study"for details)Wet mix: Simply ...