M.J. PRABU Input cost has greatly decreased and yield has increased considerably
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/taking-leaf-book-ancient-time-tested-practices
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/crop-pests
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pest-control
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kanniyakumari