Evaluation of the coefficient of uniformity and nonuniformityof irrigation for wide-range irrigators invarious field conditions

摘要

The aim of this paper is to address an issue of work quality of irrigation machines with eight parameters that wereselected and defined as input variables. The objective of the study was to determine possibilities of different evaluationmethods for a wide range of irrigation machines and their versatility. All input conditions that could affect the resultswere recorded and analysed. The results were statistically analysed by a linear model (ANOVA). The results confirmthat there are no statistically significant differences in used evaluation methods (p > 0.05) when the effect of locality wasnot considered. When the effect of locality was considered, statistically significant differences were observed (p < 0.05).When considering the coefficient of non-uniformity, statistically significant differences were not observed, howeverin case of considering different irrigation machines, statistically significant differences were observed. The obtainedresults indicate that the evaluation of irrigation uniformity is possible to carry out with other methods; however, thespecific field conditions are not interchangeable as a parameter.