@INPROCEEDINGS {KANG:1984e, title = {Nitrogen management in alley cropping systems}, author = {Kang, B. and Duguma, B. }, booktitle = {Presented at the International Symposium on Nitrogen Management in Farming Systems in the Tropics, 23-26 October, IITA}, year = {1984}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, }