green revolution an over view
TRANSCRIPT
As the American revolution and industrial revolution, there
occurred a new revolution in the 20th century, that dramatically
changed the field of agriculture, and this revolution is known as
the green revolution
Green revolution was a period when the
productivity of global agriculture increased drastically as a result
of new advances, which results in high
productivity
Synthetic herbicides and pesticides
Chemical fertilizers
HISTORY OF GREEN REVOLUTION
Norman BorlaugHe was the first to found the green revolution. He
conducted a research in Mexico in 1940 and developed a high yield
varieties of wheat
In 1965 the Indira Gandhi govt. took a
major step in agriculture. Dr.
M.S.Swaminathan, father of green
revolution led this revolution as a project
ELEMENTS OF GREEN REVOLUTION
Expansion of farming areas
Green revolution continued with quantitative expansion of farmlands
Artificial monsoonThere had to be two monsoons per
year, one would be the natural monsoon and the other an artificial
monsoon
Multiple croppingInstead of growing a single crop per
year, the field should use to grow two or more crop through out the
year
High yield cropsSpecially designed crop is
developed to produce more overall yield
Requirements for green revolution
High yielding varieties of
seed
Chemical fertilizers
Modern agricultural machinery
Advanced irrigational technology
Rural electrification
Soil testing and soil conservation
ADVANTAGES OF GREEN REVOLUTION
It It made it possible to grow more crops on roughly the same amount of land with a similar amount of
effort
The farmers of rural areas learned new techniques for building irrigation systems to bring
water to their fields
Developing countries become self
sufficient in food grains and hence
resulted in decreased poverty level
India transformed itself from a
starving nation to an exporter of
food
The crop yield is increased three times
than the earlier
It boosted industrial growth, created job opportunities and
improved the quality of life of the
people
It created plenty of job not only for agricultural
workers but also industrial workers by
the creation of factories and hydro electric
powers
It has changed the attitude of people
towards agricultural work as
now it has wide scope
It increases the greenery of environment
It brings rain in proper time It reduces the pollution level It minimizes the effect of global
warming It minimizes the effect of soil
erosion Floods can be controlled to
some extent
Some other advantages on environment
Limitations of green revolution
Even if the green revolution is impressive, it was not 100%success
the poorer farmers can not achieve yield as high as those with better access to water, fertilizer and land
Lead to reduction in the organic matter
in the soil
A few states showed best
result in green revolution
New hybrids required use of
chemical fertilizers and
pesticides
The new farming
techniques, has caused pollution
of natural resources
Un employment among un educated farmers