00362pab a2200121 454500008004000000100002100040245009300061260000900154300001300163362001100176650001900187773003400206180718b2011   xxu||||| |||| 00| 0 eng d  aReddy, B. Suresh  aDynamics of soil fertility management practices in semi-arid regions: A case study of AP  c2011  ap.56-63.  a15 Jan  aSoil fertility  aEconomic and Political Weekly