00445nam a2200157Ia 4500008004100000020000500041082001900046100001600065245010100081260002600182300000700208650002200215650001600237700002000253700001400273140316s9999    xx            000 0 und d  a  a633.18bDWI/SU  aDwiwedi B S  aSulphur fertilisation for suataining productivity of rice -wheat system in western Uttar Pradesh  aNew DelhibICARc2001  a35  anutrient carriers  aSoil survey  aArvind K Shukla  aSingh V K