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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. The halophile plants, the effects of sodium deficiency are the colored leaves, almost white, spotted narcotics.
See also
 Minerals
Sulfur
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. 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. 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. 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. |
 
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