EVALUATION OF DRIPPER EFFICIENCY WITH THE USE OF FERTILIZER

UNIFORMITY IN MICRO SPRINKLER WITH AUTONOMOUS PHOTOVOLTAIC PUMPING

Abstract

The objective of the work was to analyze the uniformity of drip fertigation compared to the use of water alone, analyzing by the Tukey test at 5% significance for CUC and DUC, defining the process capability from the process capacity index (Pc) . The experiment was carried out on a test bench in the irrigation and fertigation laboratory (LIF) of the University of Western Paraná, where in the first treatment, water was used for the irrigation process and in the second treatment, commercial fertilizer was diluted in the reservoir to perform the fertigation. The experimental statistics is constituted in an analysis of variance with subsequent unfolding of the interaction and Tukey test at 5% probability to compare the averages of uniformities, flow and pressure of the system. Finally, the process capability (Pc) was defined for the distribution uniformity variable. The results showed statistical superiority for the fertigation process, however, it is noteworthy, that both treatments achieved excellence in their classifications with values ​​above 90% for both CUC and DUC, according to the reference.