A survey was conducted in 150 agricultural fields where agroforestry has been followed. Five main multiple plantation patterns of agroforestry systems were followed which includes 2 to 6 plant species.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/beneficial-effects-multiple-plantation-patterns-agroforestry-systems
[2] http://admin.indiaenvironmentportal.org.in/category/author/h-n-hymavathi
[3] http://admin.indiaenvironmentportal.org.in/category/author/k-kandya
[4] http://admin.indiaenvironmentportal.org.in/category/author/l-p-patel
[5] http://admin.indiaenvironmentportal.org.in/category/journal/indian-forester-0
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agroforestry
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sagar-d
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/farmers
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/madhya-pradesh
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture