Links:
[1] http://admin.indiaenvironmentportal.org.in/news/what-precision-farming-and-not
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agricultural-research
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agricultural-systems
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india