Results 91 to 100 of about 23,146 (251)
Spatial variability in surface water activation and persistence decreased with ongoing drought. The importance of landscape attributes in explaining surface water presence decreased throughout the drought. Flow activation events after several years of drought were more closely associated with precipitation event characteristics than antecedent storage ...
Lauren Giggy +2 more
wiley +1 more source
This study was conducted in eight different regions of Saudi Arabia to estimate monthly and annual crop water requirements (CWR). Fields that have been selected are located in regions of the Medina (Al Ula), Tabuk (Teimaa), Makkah (Al Jumum), Al Jouf ...
A. Al-Omran, S. Eid, Fahad Alshammari
semanticscholar +1 more source
The present work had the aim of determining the water consumption for tomato crop cultivated in protected ambient under organic fertilization and of evaluating the estimates of evapotranspiration and of crop coefficients (Kc) in greenhouse, with the use ...
Viviane Aires de Paula +3 more
doaj +1 more source
Desenvolvimento dum sistema de rega automático, autónomo e adaptativo – estudo comparativo de cinco métodos para o cálculo da ETo [PDF]
Para efeitos de desenvolvimento dum sistema de rega automático, são estudados e calibrados cinco métodos de cálculo de Evapotranspiração de referência (Priestley-Taylor, Makkink, Hargreaves, Turc, Jensen-Haise) utilizando apenas os parâmetros climáticos ...
Costa, J. L. +7 more
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ABSTRACT Forage production in semi‐arid regions of Brazil is limited by water deficit. This study aimed to identify the most adapted and efficient production systems and define their agricultural calendars for the semi‐arid region of Brazil. Twenty‐nine production arrangements that included different cropping conditions, plant density, plant cycles ...
Antonio Gebson Pinheiro +15 more
wiley +1 more source
A model of correction indexes determination for Virginia type tobacco on the basis of field measured ETP [PDF]
Numerous methods of calculating ET0 and ETP offer a great practical possibility for their application, but in order to improve their efficiency it is necessary to check them in particular regions.
Aksić Miroljub +4 more
doaj +1 more source
Uncertainty in the determination of soil hydraulic parameters and its influence on the performance of two hydrological models of different complexity [PDF]
Data of soil hydraulic properties forms often a limiting factor in unsaturated zone modelling, especially at the larger scales. Investigations for the hydraulic characterization of soils are time-consuming and costly, and the accuracy of the results ...
Baroni, G. +5 more
core +3 more sources
ABSTRACT The effects of different irrigation methods (center pivot [CPI], subsurface drip [SDI] and furrow irrigation [FI]) and levels (full irrigation treatment [FIT], 80% FIT, 60% FIT and rainfed) on yield, crop evapotranspiration (ETc), ET‐water productivity (WPET) and drought stress index for leaf expansion (SIE) and photosynthesis (SIP) of maize ...
Ebrahim Amiri +2 more
wiley +1 more source
Estimation of crop water requirements: extending the one-step approach to dual crop coefficients [PDF]
Crop water requirements are commonly estimated with the FAO-56 methodology based upon a two-step approach: first a reference evapotranspiration (ET0) is calculated from weather variables with the Penman–Monteith equation, then ET0 is multiplied by a ...
J. P. Lhomme +3 more
doaj +1 more source
Modelling of Changes in Evapotranspiration for an Area in Peninsular Malaysia [PDF]
A study was carried out to check the sensitivity of evapotranspiration estimation due to changes in climate. The study used 30 years of data from the meteorological station in the FELCRA paddy estate, Seberang Perak, Peninsular Malaysia. The effect of
Feng, Huang Yuk +3 more
core

