Plants require basic mineral from the soil and environment to grow healthily. NPK is the general name used to refer to the three basic nutrient components required by plants for their growth. Since the soil in their natural condition does not always provide adequate nutrient support to the plants, fertilizers are used to provide artificial support. \n
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NPK fertilizersare a common form of fertilizers where the basic components are Nitrogen, Phosphorus and Potassium.
There are numerous fertilizers available in the market to support sustained plant growth, however, to make it easier the fertilizers are commonly segregated as macro nutrients and micro nutrients.
The Macro nutrient group is again divided into Primary and Secondary nutrients. This division is based on the basic necessity and popular requirement of plants.
The three primary nutrients which are mostly required by plants to acquire optimum nutrient conditions for growth a Nitrogen, Phosphorus and Potassium, which together forms NPK fertilizers.