na INLIS000000000003325 20210519133629 210519||||||||| | ||| |||| || | 010-0521003325 en 633.1/HUG/c 633.1/HUG/c Edwin R.Henson Harold D. Hughes Crop Production: Principles and Practise Toronto, Ontario The Macmillan Company 1969 xii, 620 p.;ill.; 24cm SOIL -- SOYBEANS -- CROPS -- PLANT DISEASES -- TOBACCO -- SEEDS -- SUGARCANE -- CORN -- SHORGUM