00532nam a22001697a 4500 OSt 260612b |||||||| |||| 00| 0 eng d 631.42 P74I Prasad, Janardan Influence of Micronutrients, Organic Manures and Pyrites on Crop Yield and Micronutrients Availability under Multiple Cropping Systems in Calcareous Soil Pusa, Samastipur RAu 1985 138P. Ph.D. 1985 Soil Science Ph.D. Thesis ddc T 52031 52031