ABSTRACT
The purpose of this research was to evaluate the degree of non-uniformity of furrow irrigation system performance generated by spatial and temporal variations in field and operational parameters. At each irrigation event along the crop season, field evaluations were performed in six furrows chosen in such way to comprise most of the spatial variations. Maximum spatial variations in the application efficiency, tailwater ration and deep percolation ration were equal to 33.0, 162.0 and 140.5%. Spatially, for tho same parametrs the maximum temporal variations were 26.3, 78.4 and 233.3%.
Key words:
furrow irrigation; management; performance