In the 1994/1995 season a study was carried out in an orange orchard (
Citrus sinensis L.) cv.'Thompson Navel', to determine the
effect of application of different levels of water and fertigation
using drip irrigation on the biophysical, productive and quality
parameters of sixteen year old orange trees. The study was undertaken
at the La Rosa-Sofruco S.A Farm, located in Peumo, Chile,
(34°19 South lat., 71º 15 West long. at an
altitude of 215 m.o.s.l.). The results showed that increasing
simultaneousby the application of water and fertigation increased fruit
production and quality in'Thompson Navel'oranges. In relation to
biophysical parameters, only diffusive resistance showed a clear
response to the different treatments