ABSTRACT 

Intercropping is a cultural technique which gives crops a competitive advantage on weeds therefore contributes to weed management. There is need to choose the plant population which results in weed suppression whilst not negatively affecting the component crops yield. The experiment was set in a Randomised Complete Block Design with 5 treatments which are sole maize crop, maize-butternut intercrops at butternut densities of (30%, 40% and 50% of maize population which is 11110, 13889 and 18518plants/ha respectively) and sole butternut crop. Data on maize plant height, maize grain yield, weed density and biomass were measured and Land Equivalent Ratio (LER) calculated using yields of maize and butternut. It was found that there was no significant difference on maize plant height and weed density. However, there was significant (P