facts on the green revolution and its sucesses and failures.

india case study based on GR.



HideShow resource information
  • Created by: Alyssa
  • Created on: 22-05-10 13:52

First 324 words of the document:

By the 1960's inc. pop. And subsistence farming in LEDC'S meant it was essential to increase yields to
feed people and improve living standards ­ the green revolution was partly a plant engineering
programme where new strains of crops were produced to inc. yields
HYV=high yield variety
HYV trebled wheat yields and doubled maize yields were first developed in Mexico ­ followed by a
new strain of rice (IR8) in the Philippines that trebled rice yields there. The prog. then spread to India
and SE Asia
Yields were increased in 4 ways
Dwarf varieties ­ can be grown closer together without blocking sunlight and are less susceptible to
wind damage as they're shorter
HYV'S are designed to make a maximum use of fertilizers, so they have smaller root systems. This
makes them less reliant on fertile soil.
HYV'S are designed to withstand common diseases that can wipe out crops
Shorter growing seasons mean that more crops can be harvested in a year- many parts parts of SE
Asia now get 2 or 3 rice harvests a year instead of 1.
Successes and failures of the GR
Farmers with inc. yield have higher income and a better standard of living
New industries making fertilisers and pesticides have developed in rural areas
Technology such as irrigation has inc.
Transport systems have improved in some rural areas
HYV'S have led to a more varied diet
Many farmers can't afford the machinery, chemicals required
Subsistence farmers on the poverty line are reluctant to try new techniques as they can't afford to
take risks
Credit schemes are needed to help farmers borrow money
Maintenance and fuel needed for machines isn't always available
Inc. yields can make prices fall ­ poor farmers become poorer

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Machinery increases rural urban unemployment and rural urban migration
India case study
Green revolution has more than doubled the production of wheat and rice.
Intensive farming is farming using small areas of land with a high output and labour per hectare. with
the rising demand that will be required to feed a world population set to rise from 6.6 billion today
to more than nine billion people by 2050.…read more


No comments have yet been made

Similar Geography resources:

See all Geography resources »See all resources »