00487nam a22001697a 4500003000400000008004100004082001800045100002400063245011300087260003900200300000900239502001700248650001300265650001700278650001100295650001100306OSt260519b        |||||||| |||| 00| 0 eng d  a633.492bJ46E  aJha, Ratnesh Kumar.  aEffect of Azospiril lum for Nitrogen Economy in Sweet Potato (Ipomoea batatas Lam.) / cby Ratnesh Kumar Jha  a.- Pusa, samastipurb: RAUc, 1993  a95p.  bM. Sc.d1993  aAgronomy  aSweet Potato  aThesis  aM. Sc.