Macronutrients play a very important role in plant growth and development. Their functions range from being structural units to redox-sensitive agents. Generally, application of macronutrient increases yield, growth, and quality of crops. In the recent years, however, plant physiologists, biotechnologists, and ecophysiologists have been working to investigate various other blind features of these minerals and their future prospective, because nutrients are involved in every step of plant life.

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... very macronutrient has its own character, and is therefore involved in different metabolic processes of plant life. Herein, this chapter deals with the recent progress made in discovering the roles of macronutrients in plant growth and acclimation process as well as future prospective of elemental research in plants.