?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Prabhavati%2C+K&rft.aufirst=K&rft.aulast=Prabhavati&rft.issn=0019-0028&rft.pages=173-180&rft.atitle=Soil+Fertility+Mapping+using+GIS+in+Three+Agro-climatic+Zones+of+Belgaum+District%2C+Karnataka&rft.volume=63&rft.issue=2&rft.title=Journal+of+the+Indian+Society+of+Soil+Science&rft.date=2015&rft.genre=article