“INFLUENCE OF MAIZE–COWPEA INTERCROPPING ON YIELD COMPONENTS AND PRODUCTIVITY OF IMPROVED COWPEA (VIGNA UNGUICULATA L. WALP) BREEDING LINES IN MAKURDI, NIGERIA”. Journal of Enviromental Sciences and Built Environental Research 1, no. 2 (August 28, 2026): 369–375. Accessed September 4, 2026. https://jesber-unical.org.ng/index.php/home/article/view/71.