authors Manda, Julius Alene, Arega Tufa, Adane Abdoulaye, Tahirou Kamara, Alpha Olufajo, O. O. Boukar, Ousmane Manyong, Victor
has subject area clarisaCountry-566 Adoption Agricultural Economics & Policy Business & Economics Nigeria agriculture economics immunosuppression productivity varieties
keywords Cowpea Nigeria adoption control function impacts improved varieties propensity score matching