Preliminary observations on effects of traditional farming practices on growth and yield of crops - Managing Agrodiversity the Traditional Way - page 176

be good or combine well with crops if pruning and other tree management aspects
are neglected.
Because of the inconclusive nature of the findings, studies are needed, especially
on design of tree and crop-specific agroforestry packages, and on shade and allelo-
pathic effects.
REFERENCES
Hall, J. B. and M. D. Swaine, “Classification and ecology of closed canopy forest in
Ghana”, Journal of Ecology , 1976, Vol. 64, pp. 913-951.
Markwei, C., “Use of Algae as Mulch”, A research proposal submitted to Agricultural
Services Sub-Sector Investment Programme (AgSSIP), January (2002), unpublished.
Wallkley, A. and I. A. Black, “An examination of the Degtareff method for determining soil
organic matter and a proposed modification of the chromic acid titration method”, Soil
Science , Vol. 37, 1934, pp. 29-38.