00379nam a22001217a 4500003000400000008004100004082001800045100002200063245010600085260001600191300000700207650004300214OSt260601b        |||||||| |||| 00| 0 eng d  a631.451bJ46E  aShankar Kumar Jha  aEffect of Mulch, Nitrogen and Irrigation on The Growth, Yield and Edaphic Enviornment of Summer Maize  aRPCAUc1989  a90  aM.Sc. Soil Science and Agril Chemistry