?url_ver=Z39.88-2004&rft_id=10.16943%2Fptinsa%2F2015%2Fv81i5%2F48335&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Bhattacharyya%2C+T&rft.aufirst=T&rft.aulast=Bhattacharyya&rft.issn=0370-0046&rft.pages=1151-1170&rft.atitle=Agro-Eco+Sub+region+Based+Crop+Planning+in+the+Black+Soil+Regions+and+Indo-Gangetic+Plains+%E2%80%93+Application+of+Soil+Information+System&rft.volume=81&rft.issue=05&rft.title=Proceedings+of+the+Indian+National+Science+Academy&rft.date=December+2015&rft.genre=article