Browsing by Author "Gopalakrishnan Nair, P."
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Item Soil Survey, Soil Testing and Fertiliser Recommendation(1965) Gopalakrishnan Nair, P.; Pillai, N.G.; Lal, S.B.Item Soil Survey, Soil Testing and Fertiliser Recommendation(1965) Gopalakrishnan Nair, P.; Pillai, N.G.; Lal, S.B.