COWPEA [ VIGNA UNGUICULATA (L.) WALP.] CROPPING SYSTEMS MAPPING AND FARMERS’ PERCEPTION ON SOIL FERTILITY IN BENIN: N. F. ANAGO.*, G. D. DAGBENONBAKIN **, E. C. AGBANGBA**, T. C. B. OUSSOU **, F. CHABI *, A. SAIDOU * & G. L. AMADJI *. Annales des Sciences Agronomiques, [S. l.], v. 20, n. 1, p. 65–77, 2020. DOI: 10.2023/sf2p7n55. Disponível em: https://revues.uac.bj/index.php/asa/article/view/106.. Acesso em: 20 sept. 2024.