Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ricardo P. Braga"'
Publikováno v:
OENO One, Vol 56, Iss 1 (2022)
Accurate yield estimation is of utmost importance for the entire grape and wine production chain, yet it remains an extremely challenging process due to high spatial and temporal variability in vineyards. Recent research has focused on using image an
Externí odkaz:
https://doaj.org/article/cfa72becfeab49d1b3c638e767b89925
Publikováno v:
Agronomy, Vol 12, Iss 6, p 1464 (2022)
Manual vineyard yield estimation approaches are easy to use and can provide relevant information at early stages of plant development. However, such methods are subject to spatial and temporal variability as they are sample-based and dependent on his
Externí odkaz:
https://doaj.org/article/d26301fbeda249dfa0c4e82e8a84a3ee
Autor:
Catarina Esteves, David Fangueiro, Ricardo P. Braga, Miguel Martins, Manuel Botelho, Henrique Ribeiro
Publikováno v:
Agronomy, Vol 12, Iss 6, p 1331 (2022)
Precision fertilization implies the need to identify the variability of soil fertility, which is costly and time-consuming. Remotely measured data can be a solution. Using this strategy, a study was conducted, in a vineyard, to delineate different ma
Externí odkaz:
https://doaj.org/article/b02c2a46857a41ecbf390e22164d8d98
Autor:
Gonçalo C. Rodrigues, Ricardo P. Braga
Publikováno v:
Agronomy, Vol 11, Iss 10, p 2077 (2021)
This study aims at assessing the accuracy of estimating daily reference evapotranspiration (ETo) computed with NASA POWER reanalysis products. Daily ETo estimated from local observations of weather variables in 14 weather stations distributed across
Externí odkaz:
https://doaj.org/article/8394f0c414c0466d8adbd0495d44f9d4
Autor:
Gonçalo C. Rodrigues, Ricardo P. Braga
Publikováno v:
Agronomy, Vol 11, Iss 11, p 2203 (2021)
Reference evapotranspiration (ETo) estimations may be used to improve the efficiency of irrigated agriculture. However, its computation can be complex and could require numerous weather data that are not always available for many locations. Different
Externí odkaz:
https://doaj.org/article/2ece1fd2e2514e19a7fd86831b98517e
Autor:
Gonçalo C. Rodrigues, Ricardo P. Braga
Publikováno v:
Agronomy, Vol 11, Iss 6, p 1207 (2021)
This study aims to evaluate NASA POWER reanalysis products for daily surface maximum (Tmax) and minimum (Tmin) temperatures, solar radiation (Rs), relative humidity (RH) and wind speed (Ws) when compared with observed data from 14 distributed weather
Externí odkaz:
https://doaj.org/article/823089c5a55a4afea284e5b60ae29d83
Autor:
Gonçalo C. Rodrigues, Ricardo P. Braga
Publikováno v:
Agriculture, Vol 11, Iss 2, p 124 (2021)
The FAO-56 Penman–Monteith (PM) equation is regarded as the most accurate equation to estimate reference evapotranspiration (ETo). However, it requires a broad range of data that may not be available or of reasonable quality. In this study, nine te
Externí odkaz:
https://doaj.org/article/49e62c84b1b44ea3899bb4488a332130
Akademický článek
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Autor:
JULIANA ALVES VIANA AGUIAR, RICARDO HIRATA, DANIELA BARBATI OSÓRIO, AMÉLIA JOÃO FERNANDES, ANDRE PIRES NEGRAO, ZULENE ALMADA TEIXEIRA, LUIZ RICARDO CUNHA BRAGA, JOSÉ GUILHERME FILGUEIRA
Publikováno v:
Revista Águas Subterrâneas, Vol 0, Iss 0 (2019)
O semiárido cearense registrou um dos seus períodos mais agudos de seca, que durou 6 anos, findo em 2017. Assim, a água subterrânea tem sido umas das alternativas para suprir a demanda hídrica da população e, nesse contexto, a hidrogeologia é
Externí odkaz:
https://doaj.org/article/ee579c870de8468aa894e749cc09e200
Autor:
ZULENE ALMADA TEIXEIRA, JOSÉ GUILHERME FILGUEIRA, LUIZ RICARDO CUNHA BRAGA, JOÃO GABRIEL FERREIRA DA SILVA, JOSE VITOR LUSTOSA DA SILVA, DAVI MARTINS PEREIRA
Publikováno v:
Revista Águas Subterrâneas, Vol 0, Iss 0 (2019)
A região Semiárida do Nordeste Brasileiro é caracterizada pela baixa incidência pluviométrica, restrita a apenas 1/3 do ano. Geologicamente, o Estado de Ceará é composto com quase 80% de rochas expostas do embasamento cristalino, com limitadas
Externí odkaz:
https://doaj.org/article/277a505a4110475f9148f8db1de273a0