PREPARATION FOR HYDROPONIC PLANT CULTIVATION Russian patent published in 2006 - IPC A01G31/00 

FIELD: agriculture, in particular plant culturing without soil on aqueous solution of nutritive substances.

SUBSTANCE: claimed preparation contains sources of nitrogen, phosphorus, potassium, magnesium, and calcium as well as complex of biogenic microelements in amount of 0.25-2.5 % based on preparation mass and complex of biologically active substances in amount of 0.1-1.0 % based on preparation mass. Mass ratio of nitrogen, phosphorus, potassium, magnesium, and calcium is (0.6-1.0):(0.6-1.0):(0.8-1.2):(0.1-0.3):(0.1-0.3). Biologically active substances contains gibberellinic acid sodium salt, succinic acid sodium or potassium salt, sodium, potassium or ammonium citrate, sodium or potassium borate, and ammonium parachlorophenyl-oxy-acetate N-tris(hydroxyethyl) ammonium. Ratio of acid residues of gibberellinic, succinic, citric and boric acid and parachlorophenyl-oxy-acetate N-tris(hydroxyethyl) ammonium is (0.9-1.1):(9-12):(9-12):(9-12):(4-6). Complex of biogenic microelements contains water soluble compounds of iron, manganese, copper, zinc, cobalt, and molybdenum, wherein mass ratio of iron, manganese, copper, zinc, cobalt, and molybdenum is (9-12):(2-3):(0.8-1.2):(0.4-0.6):(0.4-0.6):(15-25).

EFFECT: increased amount of plant green mass.

3 cl, 4 ex