Raphael, A. O. EFFECT OF PHOSPHORUS (P) RATES AND WEEDING FREQUENCY ON THE GROWTH AND GRAIN YIELD OF EXTRA EARLY COWPEA (VIGNA UNGUICULATA (L.) WALP) IN THE FOREST – SAVANNA TRANSITION AGRO-ECOLOGICAL ZONE OF SOUTHWEST NIGERIA. J. Agric. Sci. (Bg.) 2020, 65 (1).