The essential Nutrient elements Nutrient elements that are required for the growth and development of plants Criteria a) In its absence the plant is unable to complete a normal life cycle b Or that element is part of some essential plant constituent or metabolite c)Must act directlyThe Essential Nutrient Elements ➢ Definition: Nutrient elements that are required for the growth and development of plants ➢ Criteria: a) In its absence the plant is unable to complete a normal life cycle. b) Or that element is part of some essential plant constituent or metabolite. c) Must act directly