00568nam a22001697a 4500003000400000008004100004082001700045100002500062245018500087260003900272300001000311502001700321650001800338650002000356650001100376650001100387OSt260611b        |||||||| |||| 00| 0 eng d  a631.41bS48E  aSingh, Krishna Nand.  aEffect of Integrated Nutrient Supply on Soil Humus, Surface Reaction of Phosphate and Nitrogen Losses in Relation to Their Availability in Calcareous Soil / cby Krishna Nand Singh  a.- Pusa, Samastipurb: RAUc, 1988  a156p.  bPh. D.d1988  aSoil Sciences  aCalcareous Soil  aThesis  aPh. D.