Please go to this website on farming in singapore

For farming in Sinagpore

http://www.ava.gov.sg/AgricultureFisheriesSector/FarmingInSingapore/AgroTechParks/

For Green Revolution
http://www3.moe.edu.sg/edsoftware/ir/files/geo-agriculture/index.html

The Green Revolution has improved agricultural processes and techniques that led to huge increases in the production of crops. Many countries such as India, China, Philippines and Indonesia have benefited from the Green Revolution. Though it has brought about many benefits to developing countries, the use of modern technologies in the form of hybrid strains and chemical fertilisers in agriculture have brought about environmental as well as socioeconomic problems.