TSR Gromax Mode of Action : Consists of NPK nitrogen (N), phosphorus (P), potassium (K), Zinc, Iron and sulphur mobilizing bacteria which produces organic acids and converts the insoluble form into available from through lowering the soil pH and breaking down the complex. Bacteria : Azospirillum , Rhizobium , Azotobacter Phospahte Solubilizing Bacteria (PSB), Potash Mobilizing Bacteria ( KMB) Zinc ( ZSB) iron sulphur and Other Microbial Strength And Growth Hormons etc.. Zinc Iron and sulphur are the most important nutrient requirement of the plant and which is fulfilled through the application of Siron. Also Mobilize and solubilize boron, magnesium, calcium, manganese and other micronutirents.