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Control Of Copper, Zinc And Manganese Deficiencies In Fruit Trees, N J. Halse
Control Of Copper, Zinc And Manganese Deficiencies In Fruit Trees, N J. Halse
Journal of the Department of Agriculture, Western Australia, Series 4
THE three elements copper, zinc and manganese are plant nutrients of the type often referred to as minor or trace elements.
Although essential elements for plant growth, they are required in comparatively small quantities.