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Reductions of up to 90% in weed biomass was observed under Leucaena leueocephala alley cropping with varying tree between (2, 4 and 8 m) and within-row spacing combinations when compared to crop-only control. An increase of 24 to 76% in maize yields of alley cropped plots compared to the crop-only control was also recorded. The 2 m alley widths closed canopy faster than the 4 and 8 m, and hence realized highest weed biomass reduction during the short-fallow period between two cropping seasons. At the end of the short fallow period, substantial fuelwood (up to 8 t ha ~) was realized.

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