MATER 15 MATER 15 NAME FORMULATION % w/w COMPOSITION PAKING MATER 15 SL 15 % TOTAL HUMIC EXTRACT 1, 5, 10, 20, 200 , 1000 L 10 % HUMIC ACIDS 5 % FULVIC ACIDS 4,5 % POTASSIUM OXIDE (K2O) 6 % ORGANIC MATTER