Green Revolution was started in the late 1960s with an aim of achieving self-sufficiency in the production of grains like wheat and rice. Two positive effects and achievements of green revolution are:
(i) Increase in productivity of grains:Use of HYV seeds produced much more amount of wheat and rice in comparison to traditional seeds.
(ii) Modernisation of agriculture:HYV seeds required well-developed irrigation, use of chemical fertilisers and pesticides. Use of farm machinery has also encouraged in the green revolution which resulted in development and modernisation of agriculture. It also increased the surplus in the field of agriculture.
Two Negative effects and drawbacks of Green Revolution :
(i)**Decline**in fertility of soil: Too much use of chemical fertilisers resulted in decline of fertility of soil. Farmers have to use more and more chemical fertilisers which increases the loss of production.
(ii) Level of groundwater: Use of groundwater for cultivation with the help of tube wells have caused decline in level of groundwater.
