@INPROCEEDINGS {OKIGBO:1987, title = {Increased production through low-cost food crops technology at IITA}, author = {Okigbo, B. }, booktitle = {Proceedings of FAO/SIDA Seminar on Increased Food Production Through Low-cost Food Crops Technology, Harare, Zimbabwe}, year = {1987}, month = {March}, pages = {358--366}, publisher = {FAO}, location = {Rome}, }