@INBOOK {SINGH:1999b, title = {Farmer participatory evaluation of improved strip intercropping systems in northern Nigeria}, author = {Singh, B. and Tarawali, S. and Gupta, S. and Tabo, R. and Nokoe, S. and Odion, C. }, year = {1999}, type = {Agronomy Abstracts}, number = {37}, } |