There are a total of sixteen essential nutrients for plant growth. These nutrients are divided into two categories: macro-nutrients, which plants require in large quantities, and micro-nutrients, which are needed in smaller amounts.

Macro-nutrients are required by plants in large quantities, whereas micro-nutrients are needed in smaller quantities.

Replenishing nutrients in the soil is crucial for agricultural purposes because it ensures that plants have access to the necessary nutrients for optimal growth and yield, ultimately contributing to food security and agricultural productivity.

Soil can be enriched with essential nutrients for improving plant yield by supplying them in the form of manure and fertilizers.

Deficiency of essential nutrients can adversely affect various physiological processes in plants, including reproduction, growth, and their ability to resist diseases.