@INBOOK {EZUMAH: 1983, title = {Agronomic considerations of notillage farming}, author = {Ezumah, H. C. }, year = {1983}, type = {No-Tillage Crop Production in the Tropics, Eds. I.O. Akobundu and A.E. Deutsch. corvallis: International plant protection center, Oregon State University}, } |