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Roles of Ca and Mg in plants

Fertilising with forms of calcium and magnesium that plants can take up ("available nutrients") are indispensable for good plant growth. Plants, like all living things, have mineral requirements, too.

Role of calcium in plants

Calcium plays an extremely important role in producing plant tissues and enables plants to grow better. It

· increases the plant tissues' resistance and
  allows for more erect stems
· contributes to normal root system development
· increases resistance to outside attack
· increases the feed value of forage crops
  (by enriching the plant in calcium)

Role of magnesium in plants

Magnesium is an indispensable mineral for plant growth, for it plays a major role in the production of chlorophyll, on which photosynthesis depends. Without a ready source of magnesium the plant cannot grow. Magnesium plays a part in many processes, to wit:

· Chlorophyll formation
     o Light-absorbing green pigment
     o Capture's the energy of sunlight and turns it into chemical energy
     o Allows synthesis of organic compounds that are
        useful for plant growth and functioning
       (carbohydrates, lipids, proteins)
· Synthesis of amino acids and cell proteins
· Uptake and migration of phosphorus in plants
· Vitamin A and C concentrations
· Resistance to unfavourable factors (drought,
  cryptogamic disease)

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