Although you may be aware of the fact that plants use their roots to absorb essential nutrients like nitrogen, you may not know the exact reason behind their need to gain nitrogen. So, let us start by telling you that nitrogen is a macro-nutrient that is highly important for the healthy growth of plants. If plants do not receive this component, then they may also show signs of nutritional deficiency as human beings do.
Humans require vitamins and minerals for growth and development, but have you wondered what plants require for their growth and development? Yes, plants just like human beings also require certain amount of nutrients such as nitrogen, magnesium, calcium, zinc, iron, etc. for their proper growth and biochemical functions. Without desired amount of nutrients, plants are stunted, have discolored leaves or no flower growth, which are the signs of nutrient deficiency.