A study was designed to evaluate the effects of uniformity of sprinkler irrigation in maize and dry bean crops. For maize crop, the treatments consisted of five depths of water applied in two application uniformities: one high (CUC> 82%) and the other low (CUC<67%). For dry beans, the treatments consisted of four Christiansen application uniformity coefficients (CUC - 94.1, 85.6, 65.6 and 57.9%). A regression equation was adjusted for maize grain yield versus water application depth for high uniformity irrigation treatments, whereas for treatments with low irrigation uniformity in maize crop and for all treatments in dry beans the regression equations observed had very low values of R². These data indicate that, it is impossible to introduce irrigation uniformity effects in crop growth simulation models
irrigation uniformity; maize crop; dry bean; simulation models; CUC
