@INPROCEEDINGS {AYANABA:1978c, title = {Herbicides in tropical soils and water}, author = {Ayanaba, A. }, booktitle = {Weeds and their control in the humid and subhumid tropics: proceedings of a Conference at the International Institute of Tropical Agriculture, 3-7 July 1978, edited by I.O. Akobundu}, year = {1978}, month = {July}, pages = {61--72}, address = {Ibadan, Nigeria}, }