Magnesium aids in the activation of many plant enzymes needed for growth and contributes to protein synthesis. Iron is integral component of several enzymes, and aids in nitrate and sulfate reduction and energy production within the plant. Sulfur helps plants form important enzymes and assists in the formation of plant proteins. Ambrosia Cropz Mag contains a highly soluble concentrated blend of magnesium, iron chelate, and sulfur. Ambrosia Cropz Mag is formulated for optimal growth, health, and yield when used in conjunction with Ambrosia Cal and Ambrosia Vegetative Growth Formula or Ambrosia Fruit and Flower Formula.