Results 21 to 30 of about 21,909 (264)

Utilização de lisímetros de pesagem para a determinação dos coeficientes de cultura do meloeiro (Cucumis melo L.) para cultivo em estufa agrícola na região de Araras - SP [PDF]

open access: yesEngenharia Agrícola, 2013
Esta pesquisa foi conduzida em uma estufa agrícola instalada na área experimental do Centro de Ciências Agrárias da Universidade Federal de São Carlos, localizado em Araras - SP.
José G. Peres   +3 more
doaj   +1 more source

Calculating canopy stomatal conductance from eddy covariance measurements, in light of the energy budget closure problem [PDF]

open access: yesBiogeosciences, 2021
Canopy stomatal conductance is commonly estimated from eddy covariance measurements of the latent heat flux (LE) by inverting the Penman–Monteith equation.
R. Wehr, S. R. Saleska
doaj   +1 more source

Evapotranspiração e coeficiente de cultivo do tomate caqui cultivado em ambiente protegido Evapotranspiration and crop coefficient of Kaki tomato cultivated in greenhouse

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2009
Os parâmetros aerodinâmicos de uma cultura cultivada em ambiente protegido podem ser considerados dependentes do nível de radiação global, temperatura do ar e umidade do ar, com base em leis exponenciais.
Ligia S. Reis   +2 more
doaj   +1 more source

Comparison of some empirical equations for estimating daily reference evapotranspiration [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2010
In this paper, results of certain empirical equations for estimating the daily reference evapotranspiration for the area of southern Italy have been given.
Trajković Slaviša, Gocić Milan
doaj   +1 more source

Modelling evapotranspiration of soilless cut roses "Red Naomi" based on climatic and crop predictors [PDF]

open access: yes, 2019
Original PaperThis study aimed to estimate the daily crop evapotranspiration (ETc) of soilless cut ‘Red Naomi’ roses, cultivated in a commercial glass greenhouse, using climatic and crop predictors.
Costa, Patrícia Malva   +2 more
core   +1 more source

Leaf-scale experiments reveal an important omission in the Penman–Monteith equation [PDF]

open access: yesHydrology and Earth System Sciences, 2016
Abstract. The Penman–Monteith (PM) equation is commonly considered the most advanced physically based approach to computing transpiration rates from plants considering stomatal conductance and atmospheric drivers. It has been widely evaluated at the canopy scale, where aerodynamic and canopy resistance to water vapour are difficult to estimate directly,
Stanislaus J. Schymanski, Dani Or
openaire   +4 more sources

Reference evapotranspiration estimation by different methods for the sucroenergy sector of Colombia

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2021
In the Colombian Sugarcane Research Center CENICAÑA, efficient use of water is always performed based on estimating reference evapotranspiration. In this method, class A pans have been used to estimate the reference evapotranspiration, which provides a ...
Christian J. Mendoza C.   +1 more
doaj   +1 more source

The blue water footprint of electricity from hydropower [PDF]

open access: yes, 2012
Hydropower accounts for about 16% of the world's electricity supply. It has been debated whether hydroelectric generation is merely an in-stream water user or whether it also consumes water.
Hoekstra, A.Y., Mekonnen, M.M.
core   +4 more sources

Evaluation of FAO-56 Penman-Monteith Model Using Alternative Climatic Data Application to Afghanistan [PDF]

open access: yesRevista Brasileira de Meteorologia, 2020
The Penman-Monteith model with alternative and measured data in three regions of Afghanistan (Central-North- East) was discussed by estimating reference evapotranspiration (ET0).
Homayoon Ganji, T. Kajisa
doaj   +1 more source

Estimation of reference evapotranspiration in a mountainous mediterranean site using the Penman-Monteith equation with limited meteorological data

open access: yesPirineos: Revista de Ecología de Montaña, 2009
En los últimos años, diferentes autores han adoptado el método de Penman-Monteith para estimar la evapotranspiración potencial mediante datos climáticos.
J. I. López-Moreno   +2 more
doaj   +1 more source

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