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Bluish white, brittle heavy metal or element (Zn). The name is derived from zinc (tooth, jag), as zinc solidifies in a jagged shape. It occurs relatively frequently in the earth's crust, although not in pure form (solid), but only bound in ores. The most important ores for zinc extraction are zinc sulphide ores. Zinc is essential for all living organisms and is a component of important enzymes. It is very important for the healthy growth of the vine. Zinc deficiency occurs particularly in sandy soils. Soils with an extremely high phosphorus content are also at risk, as an increased phosphorus supply to the vine can hinder the absorption of zinc.

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