00510nam a22001817a 4500003000400000008004100004082001800045100002500063245010000088260003900188300000900227502001100236650002400247650001000271650002500281650001100306650001100317OSt250516b        |||||||| |||| 00| 0 eng d  a630.717bS48T  aSingh, Suresh Kumar.  aTechnological Gaps in Adoption of Chemical Fertilizers in Major Crops / cby Suresh Kumar Singh  a.- Pusa, Samastipurb: RAUc, 1990  a88p.  bM. Sc.  aExtension Education  aCrops  aChemical Fertilizers  aThesis  aM. Sc.