... .3% ,Fe: 2.0%, Mn:1.5%,B:1% Micromate----- Calcium Fortified MixGuaranteed Analysis: Ca: 10% Mg: 6.0% S: 5 ... from chemically reacting sulfuric acid with calcium carbonate, magnesium oxide, calcium-sodium borate, copper oxide, iron oxide, manganese oxide and zinc oxide. To be used for direct soil ... corn, Sugar cane, Strawberries, Tea, Tomatoes, Turnips, Walnuts, Watermelons, Wheat and most other crops.