Micro-nutrients are essential nutrients required by plants in relatively small quantities, but they play critical roles in various biochemical processes necessary for plant growth and development. Unlike macro-nutrients, which are needed in larger amounts, micro-nutrients are used in trace amounts but are equally important for healthy plant functioning.
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Micronutrients and macronutrients differ in their required quantities and roles in plant growth. Macronutrients, including nitrogen, phosphorus, and potassium, are needed in relatively large amounts and serve as primary building blocks for plant structure and metabolism. In contrast, micronutrients such as iron, zinc, and copper are required in smaller quantities but are equally essential for specific biochemical processes, enzyme activities, and overall plant health, despite their minor presence in plants.