In view of the current food crisis, it i | Class 12 Biology Chapter Biotechnology and its Application, Biotechnology and its Application NCERT Solutions

Green revolution or third Agricultural Revolution is the research technology transfer initiatives which increases agricultural production by adopting modern methods and technologies. There are some key elements that includes: adoption of new technology like High- yielding varieties, limited water supply by using irrigation, using high yielding variety of seeds, chemical fertilizers etc. Some limitations of green revolution are as follows:

1. Continuous use of groundwater for the irrigation, reduces the water level.
2. Chemical fertilizers are when used in excess amount, leads to the loss of soil fertility. And when the rain comes or when the water from the agricultural field with the excess amount of chemical fertilizers comes in the water, it gradually pollutes the water and leads to eutrophication in aquatic organism and biomagnification in terrestrial organisms.
3. Excess amount of water supply may lead to water logging and excess amount of salt concentration in water causes salinization which are the problems that came across the green revolution.