Two-dimensional spatial distribution modeling of sprinkler irrigation

Irrigation can provide significant agronomic and financial returns on agricultural activity. The maximization of the benefits obtained from irrigation depends, among other factors, water use efficiency, which is intrinsically related to application uniformity. For sprinkler method, uniformity assessment based results labor-intensive field tests in two-dimensional distribution pattern measured a grid catch cans. aim this study was evaluate simplified methodology for determining using depth data single head operation, positioned at intersection two diagonal alignments containing regularly spaced Three methods simulate spatial were evaluated: linear interpolation (LI), cubic spline (SC) second-degree polynomial regression (PR). Each these associated with procedure calculate distribution. adequacy LI SC modeling verified by Wilcoxon-Mann-Whitney test (p-value < 0.05) applied tests. Mean values coefficient efficiency equals 0.771 0.785 methods, respectively. PR method underperformed others.