MATER 20 MATER 20 NAME FORMULATION % w/w COMPOSITION PAKING MATER 20 SL 20 % TOTAL HUMIC EXTRACT 1, 5, 10, 20, 200 , 1000 L 10 % HUMIC ACIDS 10 % FULVIC ACIDS 0,5 % POTASSIUM OXIDE (K2O) 5 % ORGANIC MATTER