Results 81 to 90 of about 634 (173)

CONSIDERAÇÕES FINAIS SOBRE A EVAPOTRANSPIRAÇÃO POTENCIAL MEDIDA E CALCULADA NO MUNICÍPIO DE GOIÂNIA E CIRCUNVIZINHOS

open access: yes, 2007
In this paper the author compared the potential evapotranspiration calculated by methods of THORNTHWAITE, CAMARGO, HOLDRIDGE, BLANEY-CRIDDLE, GRASSI-CHRISTIANSEN and GARCIA-LOPEZ, with the direct measurement from the evapotranspirometer of THORNTHWAITE &
Lobato, Olivar José da Silva M.   +1 more
core  

Determination of Crop Coefficients for Flood-Irrigated Winter Wheat in Southern New Mexico Using Three ETo Estimation Methods

open access: yes
Crop coefficient (Kc), the ratio of crop evapotranspiration (ETc) to reference evapotranspiration (ETo), is used to schedule an efficient irrigation regime.
Adam Gonzalez   +3 more
core   +1 more source

Evaporation and Potential Evapotranspiration in Central Iraq

open access: yes, 1964
The principal objectives of this study were to compare several formulas for estimating pan evaporation and evapotranspiration and to derive new formulas or modify existing formulas that will better fit the data for central Iraq.
Al-Barrak, Ala H.
core   +2 more sources

Eficiencia en el uso del agua en maíz (Zea Mays L.) con riego por goteo, en el Valle de la Paz, Baja California Sur, México

open access: yesRevista Ciencias Técnicas Agropecuarias, 2007
Con el objetivo de evaluar la eficiencia en el uso del agua del maíz en riego por goteo se estableció un experimento en el campo agrícola de la Universidad Autónoma de Baja California Sur, Baja California Sur, México (24o10’ L N; 1100 19’ LW), en ...
Sergio Zamora Salgado   +4 more
doaj  

Evaluation of empirical methods to estimate reference evapotranspiration in Uberaba, State of Minas Gerais, Brazil Avaliação de métodos empíricos na estimativa devapotranspiração de referência para Uberaba - MG

open access: yesEngenharia Agrícola, 2012
Evapotranspiration is the process of water loss of vegetated soil due to evaporation and transpiration, and it may be estimated by various empirical methods.
Giovani L. de Melo   +1 more
doaj   +1 more source

Evaluación de cinco métodos para estimar la evapotranspiración potencial en la provincia de Talca, VII Región [PDF]

open access: yes, 1997
Resumen (Spanish, English)83 p.Los valores de la Evapotranspiración Potencial (ETP) son fundamentales para determinar los requerimientos hídricos de un cultivo ubicado en condiciones de clima y suelo específicos; estos optimizan los diseños de los ...
Ortega Farías, Samuel (Prof. Guía)   +2 more
core  

Comparação entre equações empíricas para estimativa da evapotranspiração de referência na Bacia do Rio Jacupiranga Comparison of empirical equations to estimate reference evapotranspiration in Jacupiranga River Basin

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2007
A evapotranspiração de referência (ETo) representa a perda de água do solo vegetado para a atmosfera devido à evaporação e à transpiração. O modelo de Penman-Monteith demanda variados elementos meteorológicos em sua solução, o que dificulta sua aplicação
Alisson C. Borges, Eduardo M. Mendiondo
doaj   +1 more source

RÉGIMEN HÍDRICO DEL MAÍZ EN UNA ZONA ÁRIDA, DETERMINADO EN PORCENTAJES DE EVAPORACIÓN

open access: yesTropical and Subtropical Agroecosystems, 2010
La importancia del agua en la producción de alimentos obliga a utilizarla con mayor eficiencia. El Estado de Baja California Sur es característico de las zonas semiáridas: escasez de agua,  variación interanual de la precipitación y acuíferos ...
Sergio Zamora Salgado   +6 more
doaj  

Combination of satellite imagery with meteorological data for estimating reference evapotranspiration

open access: yesRevista de Teledetección, 2018
The Food and Agriculture Organization of the United Nations (FAO) in its publication No. 56 of the Irrigation and Drainage Series presents the FAO Penman-Monteith procedure for the estimation of reference evapotranspiration from meteorological data ...
D. Montero, F. Echeverry, F. Hernández
doaj   +1 more source

Estimation of Evapotranspiration ill a Rice Irrigation Scheme in Peninsular Malaysia [PDF]

open access: yes, 2005
The correct estimation of ET in the water balance equation allows for improved water management in rice cultivation. Eight evapotranspiration estimation methods (Penman, Penman-Monteith, Pan Evaporation, Kimberly-Penman, Priestley-Taylor, Hargreaves ...
Huang, Yuk Feng   +3 more
core  

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