16
Oct
2008
Sulfur
Minerals
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Sulfur is present in the soil as organic and mineral.

Organic sulfur is the most important reserves of ground mineralization and progress to a more or less quickly depending on the activity of microorganisms.

In the absence of the right normal sulfur producing symptoms of deficentei, growth slowed in atulpinii thick, green leaves without tissue necrosis, poor training nodozitatilor the roots of leguminous plants.

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Minerals
Iron

Iron must be present in the soil in a form assimilable otherwise occurs deficiency manifested by green-sickness. Iron deficiency is associated with a yellowing of leaves.

 
Phosphorus

Phosphorus is found in soil as organic and inorganic compounds. Soil organic phosphorus comes from the decomposition of organic residues from crop residues or organic fertilizers.

 
Calcium

Calcium is taken from the environment. In plant cells and tissues to be present in ionic form and the form of inorganic and organic combinations.

 
Sodium

Sodium plays a well defined role in vascular bands and fibers that support the plant tissue.

Halophile plants, adopted an environment with high concentrations of sodium, this element is necessary for growth, give a better color of the leaves, increases disease resistance.

 
Magnesium

It is found in soil. Magnesium absorption by plants is conditioned by three main factors: the amount of land accessible, magnesium interactions with other elements and requirements of the plant. Insufficient magnesium produces necrosis of leaves. Magnesium accumulate in seeds, formed with phosphoric acid, fitina.

 
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