Question

Explain green revolution &merits &demerit

Answer 1

The spread of green revolutiontechnology enabled our economy to achieve self-sufficiency in food grains. Enormous increase in the production of food grains through the use of high yielding variety seeds for wheat and rice

Answer 2

The great increase in production of food grains due to the use of high -yielding varieties , pesticides and better management techniques .

Merits of green revolution :-

♥ Higher yield due to the use of HYV seeds.

♥ Machines like harvesters and tractors have made ploughing and harvesting faster and easier .

♥ Higher yield enabled farmers to sell the surplus food in the market and earn more .

♥ Pesticides and insecticides are able to protect the crops from pests and insects .

♥ A good irrigation system is able to enhance crop production .

Demerits of the Green Revolution

♥ Loss of soil fertility due to increased use of chemical fertilisers.

♥ Continuous use of groundwater for tubewell irrigation has reduced the water table below the ground .

♥ The chemical fertilisers , easily soluble in water can dissolve in the groundwater and pollute it .

♥ They can kill bacteria and other micro -organisms helpful for the soil .

♥ Excessive use of fertilisers can also make the soil alkaline and unfit for cultivation.