what are merits and demerits of green revolution?

Merits of Green Revolution

Compared to the traditional seeds, the HYV seeds promised to produce much greater amounts of grain on a single plant. As a result, the same piece of land would now produce far larger quantities of food grains than was possible earlier.

Demerits of Green Revolution:

• Poor farmers could not afford HYV seeds, fertilizers and machinery.
• Some borrowed and ended up with large debts
• HYV seeds need more water and fertilizer, which is expensive
• New machinery replaced manual labour leading to unemployment and rural-urban migration
• The Green Revolution was limited to rice and wheat only.