A finalidade deste trabalho foi avaliar um termo-higrômetro digital para manejo de irrigação utilizando a equação Hargreaves, que utiliza medição da temperatura do ar estimativa evapotranspiração referência (ETo), comparando-a com Penman-Monteith FAO56, nas condições climáticas município Monte Alto - SP. O verificado no LIAP (Laboratório instrumentação, automação e processamento) FCAV/UNESP – C...

Wheat is an important crop of India. Precise estimates of evapotranspiration can be obtained by multiplying crop coefficients to reference evapotranspiration using readily available climatic data. PenmanMonteith equation is adopted world wide as the most reliable and accurate method for computing reference evapotranspiration. The Food and Agriculture Organization (FAO) presented crop coefficien...

The use of multiple evapotranspiration (ET) models is critical for exploring the ambiguity in the representations of ET processes. Although ensemble ET models are increasingly used to address this ambiguity, practical issues include: 1) the diversity of process representations, which require different input data and constants; 2) the diversity of nomenclature, terminology and units used in the ...

The standardized FAO56 Penman-Monteith model, which has been the most reasonable method in both humid and arid climatic conditions, provides reference evapotranspiration (ETo) estimates for planning and efficient use of agricultural water resources. And sensitivity analysis is important in understanding the relative importance of climatic variables to the variation of reference evapotranspirati...

Abstract Optimization of water use for irrigation will only be possible with the adjustment management, which is directly related to correct estimate actual evapotranspiration crop. The present study aimed evaluate different mathematical approaches used in estimating a new soybean cultivar (BRS 7581RR) subjected deficit conditions. For this, ETa estimated by FAO56 Dual, Jensen and Hermann, Aqua...

Knowledge of crop water requirements is important in supporting irrigation management. Evapotranspiration (ET) commonly measured with a variety instruments and field procedures, but it also typically computed or modeled using the FAO56 FAO66 methods. The adoption this approach requires assessment coefficients. Some data are available for own-rooted hazelnut trees, no have been reported young gr...

The SIMDualKc model was applied to evaluate the crop water use and coefficient (Kc) of an irrigated olive grove (Olea europaea L.) located in Sicily, Italy, using experimental data collected from two seasons. applies FAO56 dual Kc approach compute actual evapotranspiration (ETc act) its components, i.e., tree transpiration (Tc act), obtained through basal (Kcb), soil evaporation according (Ke)....