TY - BOOK AU - Karanja,Nancy AU - Kahindi,James H.P. ED - African Association for Biological Nitrogen Fixation Conference TI - Challenges and imperatives for biological nitrogen fixation research and application in Africa for the 21st century: ninth congress of the African Association for Biological Nitrogen Fixation 25-29th September, 2000, Nairobi, Kenya selected papers SN - 9966879412 : PY - 2002/// CY - Nairobi PB - J. P. Africa KW - Nitrogen in agriculture KW - Congresses KW - Africa KW - Nitrogen KW - Fixation ER -