Appears in

Oxford Companion to Wine

Oxford Companion to Wine

By Jancis Robinson

Published 2006

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manganese, a soil nutrient essential for vine growth but in very low quantities. Manganese deficiency causes leaf yellowing, and is found most commonly on soils high in limestone and other alkaline soils. Acid soils (see soil acidity) which are poorly drained and high in manganese can cause toxicity, reducing both vine growth and yield.

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