Question

describe the role of nitrogen fixation in agriculture in points?

Answer 1

• Nitrogen is found in abundance in the atmosphere . It is one of the most important nutrient required for plant growth.
• The atmospheric nitrogen is converted into usable form of nitrogen compound by nitrogen fixation .

• If the same crops are grown in the field for many years , the soil becomes poor in nutrients like nitrogen and fertility of the soil decreases.

• The soil can be replenished with nutrients by growing such a crop which is able to fix up the nitrogen like leguminous crop.
• Rhizobium bacteria present in the root nodules of leguminous crops fixes atmospheric nitrogen , converts it into usable compound , hence increasing the fertility of the soil .