Cedrela odorata. L. is an important species for timber production, accelerating the physiological growth of the species is an important element to manage this process and achieve better individuals in less time. The general objective of this work was to evaluate the evapotranspiration behavior of young plantations of Cedrela odorata L. under irrigation in different conditions of crop association with respect to rainfed plantations. Three treatments were established in an experimental area in the south of Havana, in a compacted Ferrallitic Red soil, involving established plantations of cedar under different conditions: T1- rainfed, T2- under drip irrigation and T3 intercropped with plantain under drip irrigation; soil moisture dynamics and foliar water potential were evaluated in selected plants and climatic variables and the number and dose of irrigations applied were recorded; these elements allowed to perform the water balance for the determination of crop evapotranspiration ineach evaluated condition, using the mass balance.