3 documents found, page 1 of 1
Leaf area index and radiation extinction coefficient of a coffee canopy under v...
Costa, Jéfferson de Oliveira; Duarte Coelho, Rubens; Barros, Timóteo Herculino da Silva; Fraga Júnior, Eusímio Felisbino; Fernandes, André Luís TeixeiraThe leaf area index (LAI) is relevant in studies of phenomena at different scales, such as for the leaf to canopy scale and the calculation of the extinction coefficient of photosynthetically active radiation (kPAR), providing input for the parameterization of physiological basis models. The objective of this work was to verify the variation of the LAI and the coffee kPAR subjected to different drip irrigation ...
Estimation of second season maize yield loss by the spatial variability of the ...
Sobenko, Luiz Ricardo; Armindo, Robson André; Wolff, Wagner; Costa, Jéfferson de Oliveira; de Miranda, Jarbas Honório; Duarte, Sérgio NascimentoIrrigation systems are still traditionally dimensioned and managed considering that the cultivated area is homogeneous, thereby not taking into account the spatial variability of soil physical and hydraulic parameters, potentially limiting productivity. The aim of this work was to estimate the yield losses of second season maize crops when comparing the application of constant and variable complementary irrigat...
GEOESTATÍSTICA APLICADA NA ESTIMATIVA DE CHUVAS MÁXIMAS DIÁRIAS NO ESTADO DE MI...
Almeida, Rafael Alvarenga; Coelho, Gilberto; Almeida, Isabela Alvarenga; Costa, Jéfferson de OliveiraO objetivo desse trabalho foi determinar os parâmetros α e β espacializados e, assim, possibilitar a estimativa de chuvas intensas em todo o estado de Minas Gerais com uma determinada probabilidade, e também para tempos de retorno diferentes dos tradicionais. A área de estudo considerada foi o Estado de Minas Gerais, foram utilizados dados de 96 estações pluviométricas presentes na região e aplicados testes de ...