作者: Patias Lena Bruno , Teixeira de Faria Rog eacute rio , Barcellos Dalri Alexandre , Fabiano Palaretti Luiz , Gomes dos Santos Miqu eacute ias
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摘要: Many simulation models found in the literature integrates data on climate and crop characteristics to provide great information season for different crops. The objectives of this study were: a) measure soil water balance components a wheat determine its evapotranspiration (ETc) coefficients (Kc) during growing season; b) use experimental evaluate performance SMA-C estimating Parana State, Brazil; c) make adjustments improve mod`el estimates. Two weighing lysimeters cultivated with were used storage ETc crop. Reference (ETo) was determined by FAO 56 method using from local weather station. Wheat calculated ratio ETc/ETo, 0.7, 1.5 0.6, initial, mid late season, respectively. comparison simulations observed showed inaccuracies estimation due model underestimation ETc. Estimates improved adjusting consider Kc measured field. Key words: Models, lysimeters, decision-making support.