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Distinguish between the following: Micronutrients and Macronutrients.

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S. No.MicronutrientsMacronutrients
(i)Micronutrients form minor portion of dry weight of a plant.Macronutrients form major portion of dry weight of a plant.
(ii)They are required in minute quantities i.e., less than 10 m mole/kg of dry matterThey are required in relatively large quantities i.e., in excess of 10 mmole kg-1 of dry matter
(iii)Most of them act as activators for enzymes, e.g., Manganese, Zinc, Boron etc.They enter into the structure of macromolecules of the cell, e.g., Carbon, Hydrogen and Nitrogen etc.
(iv)These are called trace elements.These are called major elements.

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