Cal-Mag Plus Calcium, Magnesium & Iron Supplement. Cal-Mag Plus is a specialized plant supplement designed to compensate for deficiencies in some nutrient fertilizer programs and concentrated liquid, hydroponic nutrient formulas.Cal-Mag Plus contains: calcium magnesium, iron, boron, zinc, manganese, molybdenum, copper, cobalt, iodine, beneficial vitamins, twenty essential amino acids and selec botanical plant extracts. These ingredients aid in the production of fruits and vegetables in fruit and flower-bearing plants. Derived From: Calcium nitrate, Magnesium nitrate, Iron EDTA.Cal-Mag Plus prevents blossom and end rot in plants such as tomatoes and peppers and tip burn in lettuce by acting as a catalyst for major elements to work in symbiosis with one another.Benefits: Prevents blossom end rot in tomatoes and peppers and tip burn in lettuce and cabbage, Prevents dry and withered flower and fruit sets, Prevents interveinal chlorosis, stunted growth rates and upward leaf curl, Increases cell division and plant tissue development, Increases flower and fruit sets, Increases water, nutrient and carbon dioxide uptake, Increases growth rates and crop maturity.Guaranteed Analysis: 2-0-0