?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Nageswara+Rao%2C+V&rft.aufirst=V&rft.aulast=Nageswara+Rao&rft.issn=1873-7331&rft.pages=26-37&rft.atitle=Strategic+double+cropping+on+Vertisols%3A+A+viable+rainfed+cropping+option+in+the+Indian+SAT+to+increase+productivity+and+reduce+risk&rft.volume=62&rft.issue=-&rft.title=European+Journal+of+Agronomy&rft.date=January+2015&rft.genre=article