@PROCEEDINGS {KANG:1979d, title = {Nutrient losses in water runoff from agricultural catchments first annual research conference, IITA, Ibadan, October 15-19 , 1979}, author = {Kang, B. T. and Lal, R. }, booktitle = {First Annual Research Conference, IITA, Ibadan, October 15-19 , 1979}, year = {1979}, month = {December}, }