?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=K+L&rft.au=Sahrawat%2C+K+L&rft.aulast=Sahrawat&rft.date=2011&rft.title=Widespread+Zinc+and+Other+Deficiencies+in+the+Rainfed+Semi+Arid+Tropics+of+India%3A+Soil+Maps+as+Tools+to+Delineate+and+Manage+Deficient+Regions&rft.genre=proceeding