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Question : List out the criteria for being as essential minerals.

Answer»

Solution :Arnon and Stout(1939) gave criteriarequired for essential minerals: (1)ELEMENTS necessary for growth and development.
(2)They should have direct role in the METABOLISM of the PLANT.
(3) It cannot be replaced by other elements.
(4) Deficiency makes the plants impossible to complete their vegetative andreproductive PHASE.


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