fertilizer was to apply 97 kg/ha (150 lbs per manzana) of
20-20-0 at planting and 45 kg/ha of urea 25-30 days after
planting.

TABLE VII-2. Index of acceptability for maize
 fertilization practices.

 Applications
 1st 2nd
% of collaborators that
fertilized as recommended 41 41

% of their maize area fertilized
as recommended 32 47

Index of acceptability 13 19

 Of the 27 farmers interviewed, six of them (22%) did
not use fertilizer at all in 1980 because the price was
too high and/or they did not have the money for it.
Another 10 farmers (37%) applied some fertilizer, but not
at the recommended rates. The remaining 11 farmers (41%)
made both applications. They used recommended rates on
32% of their maize in the first application and applied
recommended rates to 47% of their maize the second time.
 The recommended practice for fertilizer application
does not appear to be as generally acceptable as were the
rice varieties in the previous example. Perhaps there is
a difference in economic capacity or there may be a soil
effect that accounts for the difference found in
acceptability. There may be two recommendation domains
involved so that further analysis of the situation appears
warranted. A directed survey or an analysis of field
notes and field histories may be used to determine whether
that is the case and to help partition the recommendation
domain.

Researchers' Evaluation

 Because only the treatment variables are controlled,
technical analysis of the results of FMTs requires
different procedures from those used for the usual
experimental designs. A useful method of analysis is to
combine a modified stability analysis and a frequency