tree plantation (Roystonea regia) (Fig. 2, Table 1). In typical years cassava
is propagated by cutting the stem into sections and planting in April,
and harvested the following March. Lemon grass is a perennial crop and
the leaves are most intensively harvested from mid-December to January.
No fertilizer was applied to any of the plots used in this study. The
cassava plots were probably subjected to plowing prior to planting,
and the R. regia plots were in an area with small, crudely-built, sloping