Das, N. R. Practical manual on basic agronomy (with theory) / N. R. Das - Jodhpur Scientific publ. 2009 - xxviii, 380p. :ill.; Pbk. ISBN: 9788172335847 Subjects--Topical Terms: Crops and soilCrops and soil--varietiesCrop yieldAgronomy LC Class. No.: S599.A4.D3 2009