Skip to page content | Text onlyGraphical version of this page

Tiscali Quicklinks. Please visit our Accessibility Page for a list of the Access Keys you can use to find your way around the site, skip directly to the main navigation, to the page content, or to more links within reference.



Main Navigation


 Home  
  Products  
  My Tiscali  
  Living  
  Money  
  Motoring  
  News  
  Play to Win  
  Shop  
  Sport  
  Travel  
  Video  
  Help 

Content Starts Here


green revolution

encyclopaedia header
Encyclopaedia Search
Click a letter for the index
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Or search the encyclopaedia:
 
 
 
all results tagged with the © symbol denotes content that is relevant to the national curriculum

Green Revolution


In agriculture, the change in methods of arable farming instigated in the 1940s and 1950s in countries of the developing world. The intent was to provide more and better food for their populations, albeit with a heavy reliance on chemicals and machinery. It was abandoned by some countries in the 1980s. Much of the food produced was exported as cash crops, so that local diet did not always improve.

The green revolution tended to benefit primarily those landowners who could afford the investment necessary for such intensive agriculture. Without a dosage of 70–90 kg/154–198 lb of expensive nitrogen fertilizers per hectare, the high-yield varieties will not grow properly. Hence, rich farmers tended to obtain bigger yields while smallholders were unable to benefit from the new methods.

In terms of production, the green revolution was initially successful in Southeast Asia; India doubled its wheat yield in 15 years, and the rice yield in the Philippines rose by 75%. However, yields have levelled off in many areas; some countries that cannot afford the dams, fertilizers, and machinery required, have adopted intermediate technologies.

© RM 2009. Helicon Publishing is division of RM.


 
 

Advertisement starts



Advertisement ends


Comoros Flag
Comoros Flag The crescent is a symbol of Islam and the green also denotes Islam. The four stars and the four stripes of colour represent the four islands in the group (including Mayotte, which is a French dependency). Effective date: 2002. >>

Advertorial

AdvertorialFind out how to buy the things you've always wanted and sell the things you don't on ebay.

Advertisement starts



Advertisement ends

Page Footer


Access keys


You will need to use different key combinations in order to use access keys depending on your internet browser, find out which on our accessibility page.
  • (0) Navigate to Accessibility page.
  • (1) Navigate to Home page.
  • (2) Navigate to My email.
  • (3) Navigate to My Account.
  • (4) Navigate to Site Map page.
  • (5) Navigate to Contact us page.
  • (6) Navigate to Members channel.
  • (7) Navigate to Services channel.
  • (8) Navigate to News & Info channel.
  • (9) Navigate to Entertainment channel.
  • ([) Skip down to the Primary navigation block.
  • (]) Skip down to the more links within this section block.
  • (=) Bypass all navigation and jump to the content.
  • (x) Text only version of this page.
Background images used:
furniture images used in the site icons used in the site images used in the header