A financial assessment of rubber/banana intercropping was made using data
available for the experiment (Rodrigo, 1997; Rodrigo etal, 2001a). It was possible to
harvest only a few banana plants in all treatments from the third year onwards due to
crop losses during prolonged dry spells in 1996 and at the beginning of 1997.
Therefore, the yield data available for analysis was for only two years, although
banana, in general, could be grown as a rubber intercrop for three or more years.
Whilst the cost involved in the third year of growth would be similar to that of the
second year, yields may have varied significantly. Therefore, financial analysis over
a three year period of banana growth was based on three scenarios in which yield of
banana in the third year was (i) identical to, (ii) 75% and (iii) 50% of that produced
in the second year. Both cost and benefit were calculated on a per hectare basis with
values for a labour unit, 1 kg of fertilizer and I kg of banana fruit of Rs.83, 12 and 20.
respectively. Labour cost was based on wages in the plantation sector and each unit
referred to eight working hours, whilst values for fertilizer and banana fruit were
determined by the general retailed price and farm gate price of Sri Lanka,
respectively (Rodrigo et al., 2001a).
A financial assessment of rubber/banana intercropping was made using dataavailable for the experiment (Rodrigo, 1997; Rodrigo etal, 2001a). It was possible toharvest only a few banana plants in all treatments from the third year onwards due tocrop losses during prolonged dry spells in 1996 and at the beginning of 1997.Therefore, the yield data available for analysis was for only two years, althoughbanana, in general, could be grown as a rubber intercrop for three or more years.Whilst the cost involved in the third year of growth would be similar to that of thesecond year, yields may have varied significantly. Therefore, financial analysis overa three year period of banana growth was based on three scenarios in which yield ofbanana in the third year was (i) identical to, (ii) 75% and (iii) 50% of that producedin the second year. Both cost and benefit were calculated on a per hectare basis withvalues for a labour unit, 1 kg of fertilizer and I kg of banana fruit of Rs.83, 12 and 20.respectively. Labour cost was based on wages in the plantation sector and each unitreferred to eight working hours, whilst values for fertilizer and banana fruit weredetermined by the general retailed price and farm gate price of Sri Lanka,respectively (Rodrigo et al., 2001a).
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