NOVELTY - Breatheable superabsorbant agrogranule having a dry matter rate of 92-95%, comprises: a mixture of 55-60% of proteinic biopolymers, rich in globulines, albumins, prolamins and fibers, consisting of protein vegetable matters including sunflower, soya, colza, alfalfa and flax, and 40-45% of polysaccharidic biopolymer, rich in starch, hemicelluloses and pectins, consisting of seed flours of cereals or sugar beet pulp; and 5-40% of natural tissue or hyaline hydrocysts cells from living plant material including Sphagnum or Carduus thistle.    USE - The breathable superabsorbant agrogranule is useful for absorbing and storing 170-520 wt.% of water or aqueous solution for supplying dissolved elements such as mineral materials including nitrogen, phosphate and potassium and organic materials including organic nitrogen, enzymes and organic nutrients, to crop, and in a fertilizer application (all claimed).    ADVANTAGE - The breathable superabsorbant agrogranule supplies the dissolved elements to crop without losing leaching, and has an ability to rehydrate to continue supplying of the necessary quantities of water and dissolved elements to the crops, and no odor.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the breathable superabsorbant agrogranule, comprising: mixing the proteinic biopolymers and polysaccharidic biopolymers after crushing; adding the natural tissue or hyaline hydrocysts cells after crushing; introducing the solid mixture in an extrusion device; introducing a process liquid, in which a sulfite salt and glycerol are dissolved to obtain a mixture of matters including 10-45% of water; processing the mixture at a temperature of 80-120 degrees C in the extrusion device; then undergoing operations of malaxation, plasticization and plastic material formation under a pressure followed by cutting in a wished gauge; steaming in a tunnel under an air flow at a temperature of 40-55 degrees C for 30 minutes to obtain the gauged agrogranule; and drying up to 92-95%.