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		No cover image available Studies on the nitrogen turnover under rice - wheat croping sequence by Das, S Dissertation note: Jain, J.M.IARI, Division of Soil Science and Agricultural Chemistry, New Delhi Ph.D. 1994Sowing Chemicals fertilizers IARI, Division of Soil Science and Agricultural Availability: Items available for reference: Prof. M S Swaminathan Library, ICAR: Indian Agricultural Research Institute: Not for loan (1). Add to cart (remove)

		No cover image available Effect of application methods and nitrogen levels through ureasupergranules in flooded rice and residual effect in wheat in Nainital, Tarai by Das, S, Material type: Text Dissertation note: G.B. Pant University of Agriculture and Technology, Pantnagar M.Sc. (Soil Sci.) 1988Singh, T.A Availability: Items available for reference: Prof. M S Swaminathan Library, ICAR: Indian Agricultural Research Institute: Not for loan (1). Add to cart (remove)

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