Roots Organics Elemental calcium and magnesium supplement was specifically created to augment calcium and magnesium levels and prevent deficiencies that can occur with fast-growing plants. Elemental contains two absolutely essential macronutrients: Calcium, an essential nutrient for plant health due to its role in cell walls, membranes and other biochemical processes; and magnesium, which is a central component of the chlorophyll molecule. Supplementing calcium and magnesium is one of the secrets of expert growers and results in more vigorous plants and larger yields.
This is essentially a dry form of a cal mag boost with added benefits such as fish protein hydrolysate and a tiny amount of sulfur to give back what reverse osmosis takes out. Twenty percent calcium availability offers a lot of bang for your buck. Elemental is easily used as top dressing applications or as an amendment. If adding to a large quantity of water, first half fill a gallon jug with water, add the elemental and shake vigorously for a minute before adding to the tank. And always make sure to add Elemental before you add any other nutrients.
Mix 1 teaspoon per gallon or 1 cup per 50 gallons. Introduce before any other fertilizer is added to solution and agitate reservoir well.
Top Dress or Blend
Blend 2 dry teaspoons per gallon of potting mix. When top dressing use approximately 3 Tablespoons per plant or 3 pounds per 400 square feet.