Gupta, P. K. A handbook of soil, fertilizer and manure / P. K. Gupta - 2nd ed. - 580p. : ill. A handbook ISBN: 9788177544039 Subjects--Topical Terms: Soils -- Handbooks, manuals, etc.Fertilizers -- Handbooks, manuals, etc.Manures -- Handbooks, manuals, etc. LC Class. No.: S591 GUP 2010