Soil was pulled over the tree root ball, leaving the emitters ex-
posed. Soil was then pulled over the remaining polyethylene
lateral burying it to the depth of the trench. Eighteen gage
P.V.C. coated wire was laid in along the mainlines, with one lead
wire and a common ground to each section for the operation of
the electric solenoid system. Soil was then pulled over the
mainlines to complete the installation. Men with hoes were
responsible for the covering of the pipes. Access to a tractor to
shove the soil would have reduced the cost of this operation.
 Roundup herbicide was applied along the tree rows, about 1.5
m (5 ft.) wide. The area between the rows was mowed. Water was
applied as necessary, with a daily average of 1 gal/tree/day when
it did not rain. Fertigation, giving a dilute nutrient solution of
approximately 300 ppm N was provided with every operation of
the system.
 Up to four months after planting, no pest control was
necessary.


BUDGET RESULTS & DISCUSSION
 Costs are presented using typical farmers' prices for all sup-
plies. The bulldozing and harrowing charges will not be necessary
in all cases, and may be omitted when appropriate. The irrigation
system is amortized over a five year period, although the system
should provide at least ten years service.
 It is assumed that a tractor is available for occasional use. If the


grower prefers, grass in between rows may be hand cut or control
grazed. It is possible to install a perennial legume ground cover
for nitrogen fixation and animal fodder.
 While these costs are compiled for one crop on a particular tree
spacing, similar costs may be anticipated using a variety of tree
crops. Adjustments to account for closer or wider spacing should
be made.
 Plant material will comprise up to 65% of the supply budget,
which comprises between 37% and 45% of the total expen-
diture. The islands that subsidize planting material may remove
up to 29% of the costs from the grower.
 The machinery component (28% to 36%) facilitates speed, if
not the success of the project. Hand labour may effectively
substitute for much of the machine work, especially in non-
irrigated plantings.
 The site must be conducive to the maintenance of the orchard.
Too often excessively hilly locations and marginal lands are
relegated to fruit crop production. Countries wishing to develop
their fruit industry must give priority to allocating it good land.
The actual cost is not high (4% to 6% of the total) and location
and terrain are major factors in the success of the enterprise.
 The interest/overhead/management component is a moderate
cost (13% to 15% of the total), but finding qualified managers
or training the farmer may be difficult. An excellent manager will
have a positive impact on most other components, and may well
be the critical factor in the production system.


References
 1. Asenjo, C.F., and de Guzman. 1946. The high ascorbic acid content of the
West Indian cherry. Science 103:219.
 2.' Anon. 1984. BASIS Report No. 18, Barbados Marketing Corporation.
 3. Anon. 1982. Barbados Statistical Service Annual Report.
 4. Kohls, Richard L., andJoseph N. Uhl. 1980. Marketing of agricultural pro-
ducts. Macmillan, NY, pp. 311-327.


 5. Ledin, Bruce. 1958. The Barbados or West Indian cherry. U. of Fla. Agr.
Exp. Sta. Bul. 594.
 6. Michelini, S. 1982. The early performance of non-traditional crops in Bar-
bados. Car. Food Crop Soc., 1982.
 7. Moscoso, C. 1956. The West Indian cherry -richest known source of
vitamin C. Econ. Bot. 10(3):280-294.
 8. Rauther, W. 1980. Chemical, climatic aspects and quality of citrus in the
tropics. Am. Soc. Hort. Sci. 24:15-26.


VOL. XX-PROCEEDINGS of the CARIBBEAN FOOD CROPS SOCIETY


225