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| Souza, Epitácio José de; Cunha, Fernando França da; Magalhães, Fernando Fagner; Silva, Thiago Ramos da; Santos, Osvaldir Feliciano dos. |
| Objetivou-se, neste trabalho, avaliar as características da espiga do milho doce produzido sob diferentes doses de adubação nitrogenada e lâminas de irrigação, em duas épocas de cultivo na região nordeste do Mato Grosso do Sul. O experimento foi conduzido em parcelas subsubdivididas, tendo nas parcelas quatro lâminas de irrigação (50, 75, 100 e 125% da evapotranspiração da cultura - ETc), nas subparcelas quatro doses de nitrogênio em cobertura (0, 100, 200 e 300 kg ha-1) e nas sub-subparcelas duas épocas de cultivo (Inverno/Primavera e Verão/Outono), no delineamento em blocos casualizados, com quatro repetições. Foram avaliadas as características: número de palha por espiga, comprimento de espiga, diâmetro de espiga, número de grãos por fileira, número de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos Hídricos e Ambientais / Irrigação adubação; Irrigação por gotejamento; Sazonalidade; Zea mays var. Saccharata Sturt. |
| Ano: 2016 |
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/617 |
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| Cunha, Fernando França da; Silva, Thiago Ramos da; Muchalak, Sofia Michele; Magalhães, Fernando Fagner; Silva, Simone Quintão. |
| This study aimed to evaluate the performance of a dripper and of a self-cleaning valve operating with water containing different concentrations of total solids. The experiment was conducted in sub-subplots design, having on the plots two line endings (conventional and self-cleaning valve), in the subplots five waters with total solids concentrations (7 mg L-1, 407 mg L-1, 1,007 mg L-1, 2,007 mg L-1, 4,007 mg L-1) and on the sub-subplots 60 reviews of irrigation system, on the completely randomized design with three replications. In the end of the trial period, each dripper applied a cumulative volume of 1.44 m³. The parameters evaluated were: flow and the uniformities of water applications through the distribution coefficients (DU), Christiansen (CU) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos Hídricos e Ambientais / Irrigação Irrigação localizada; Sólidos totais; Uniformidade de aplicação. |
| Ano: 2017 |
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/764 |
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| Ferreira, Lucas Borges; Duarte, Anunciene Barbosa; Cunha, Fernando França da; Fernandes Filho, Elpídio Inácio. |
| Estimation of reference evapotranspiration (ETo) is very relevant for water resource management. The Penman-Monteith (PM) equation was proposed by the Food and Agriculture Organization (FAO) as the standard method for estimation of ETo. However, this method requires various weather data, such as air temperature, wind speed, solar radiation and relative humidity, which are often unavailable. Thus, the objective of this study was to compare the performance of multivariate adaptive regression splines (MARS) and alternative equations, in their original and calibrated forms, to estimate daily ETo with limited weather data. Daily data from 2002 to 2016 from 8 Brazilian weather stations were used. ETo was estimated using empirical equations, PM equation with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Data driven; Irrigation scheduling; Agrometeorology; Artificial intelligence.; Agrometeorologia. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39880 |
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| Ferreira, Lucas Borges; Duarte, Anunciene Barbosa; Cunha, Fernando França da; Fernandes Filho, Elpídio Inácio. |
| Estimation of reference evapotranspiration (ETo) is very relevant for water resource management. The Penman-Monteith (PM) equation was proposed by the Food and Agriculture Organization (FAO) as the standard method for estimation of ETo. However, this method requires various weather data, such as air temperature, wind speed, solar radiation and relative humidity, which are often unavailable. Thus, the objective of this study was to compare the performance of multivariate adaptive regression splines (MARS) and alternative equations, in their original and calibrated forms, to estimate daily ETo with limited weather data. Daily data from 2002 to 2016 from 8 Brazilian weather stations were used. ETo was estimated using empirical equations, PM equation with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.05.00-0 data driven; Irrigation scheduling; Agrometeorology; Artificial intelligence. Agrometeorologia. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39880 |
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