Cal-Mag plus Iron 

Blue Planet Nutrients Cal-Mag is a plant supplement designed to correct the problem of calcium, magnesium and iron deficiencies and is a highly beneficial bio-catalyst for plants.

Function of Calcium in Plants

Calcium, in the form of calcium pectate, is responsible for holding together the cell walls of plants. When calcium is deficient, new tissue such as root tips, young leaves, and shoot tips often exhibit distorted growth from improper cell wall formation. Calcium is also used in activating certain enzymes and to send signals that coordinate certain cellular activities and helps protects plants against heat stress by improving stomatal function.

Calcium is not mobile within the plant and relies on the transpiration process to be taken up by the plant roots. Conditions of high humidity, cold and a low transpiration rates may result in calcium deficiency. Salinity buildup might also cause calcium deficiency because it decreases the water uptake by the plant. 

Since calcium mobility in plants is limited, calcium deficiency will appear in younger leaves (die back or burns) and in fruits (blossom end rot, bitter pit), because they have a very low transpiration rate. Therefore, it is necessary to have a constant supply of calcium for continued growth.

Function of Magnesium in Plants

Magnesium is the powerhouse behind photosynthesis in plants. The most important role of magnesium is as the central atom in the chlorophyll molecule. Chlorophyll is the pigment that gives plants their green color and carries out the process of photosynthesis. It also aids in the activation of many plant enzymes needed for growth and contributes to protein synthesis. Magnesium is also used by plants for the metabolism of carbohydrates and in the cell membrane stabilization.

Magnesium is mobile within the plant so deficiency symptoms appear first in older leaves. The symptoms show up as yellow leaves with green veins (interveinal chlorosis). Magnesium availability is not significantly affected by the pH but it does become more available for plant uptake as the pH of the hydroponic or soil solution increases. 

Function of Iron in Plants

Iron is a constituent of several plant enzymes and is essential in the formation of chloroplyll. Iron assists in nitrate and sulfate reduction and energy production within the plant. Plants deficient in iron show chlorosis in the new leaves.

BPN CalMag Helps Increase:
  • Cell division and plant tissue development
  • Flower and fruit sets
  • Water nutrient and carbon dioxide uptake
  • Growth rates and crop maturity
Helps Prevent:
  • Blossom end rot in tomatoes and peppers
  • Tip burn in lettuce and cabbage
  • Dry and withered flower and fruit sets
  • Interveinal chlorosis
  • Stunted growth rates
  • Upward leaf curl