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Green Revolution. 3 rd Agricultural Revolution 20 th Century. Norman Bourlag : Father of Green Revolution. Beginning. There are varying dates of the actually beginning of the revolution, but many estimate it around WWII (1940s) - PowerPoint PPT Presentation
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Green Revolution3rd Agricultural Revolution
20th Century
Norman Bourlag: Father of Green Revolution
BeginningThere are varying dates of the actually
beginning of the revolution, but many estimate it around WWII (1940s)
Norman Borlaug was in Mexico in 1943 trying to help produce more in the rural areas.
Norman was granted funding by the Rockefeller Foundation to help spread the technology to developing nations
First called Green Revolution in 1968
Punjab region in India
Success StoryIn the early 1960s, Norman was invited to IndiaThe Punjab region of India was to be the test site
for the new technologyIR8-a semi-dwarf rice produced more grains when
grown with certain fertilizers and irrigationKnown as “miracle rice”From 1960s-1990s yields have tripled, also prices
have dropped from $550 per ton to $200 per tonIndia now one of world’s most successful rice
producers and a major exporter
Africa: Slow Progress even with science
Failed attemptsAfrica has had several attempts using the
HYV or High-Yield Varieties, but none have been a success
Reasons: corruption, lack of infrastructure, lack of water and irrigation, lack of skilled farmers
NERICA-New Rice for Africa, could double yields but no real success story yet
Miracle Rice or IR8
Cross Breeding Plants: Selective Breeding: Genetic Engineering
TechnologiesPesticides, Irrigation Projects, synthetic
nitrogenCross breeding corn, wheat, rice to create
HYVMolecular genetics have changed shape and
size to support the different grains
India Production since 1965: Wheat
ProductionDoubled in developing nations from 1961-
1985This can ease foreign aid to developing
nations25% increase in caloric intake in developing
nations
NegativesFarms now more addicted to petroleumMonocultures developedEcological demands-pesticides, soil, waterDiet change, lack of flavorSingle farmer vs. Commercial/Agribusiness
What affects will be felt worldwide in agricultural areas when petroleum runs out?
India 2000 drought
Water UsageWater usage has increased worldwide since
Green RevolutionExtreme water intensive plants using high
tech fertilizers causing drain on tributaries and major water sources
Example: SW USA uses 36% of our water but only receives 6% rainfall
Also water quality decreasing-salinization, oxygen depletion due to algae growth
Project Water Shortages
ScenarioPick one side and write on it
1. Defend your position: (Pro or Con-You Pick)
The 3rd Agricultural Revolution was a necessary and successful event for humans.
Possible video to stimulate discussionhttp://www.metacafe.com/watch/1708683/
richard_manning_on_the_green_revolution/