Cobertura e depósito de calda herbicida em cana-de-açúcar em função da largura da barra de pulverização, declividade do terreno e condição meteorológica

Detalhes bibliográficos
Ano de defesa: 2015
Autor(a) principal: Baldan Júnior, Edison [UNESP]
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Estadual Paulista (Unesp)
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://hdl.handle.net/11449/136727
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/22-03-2016/000859670.pdf
Resumo: Maintaining the productivity and profitability of sugarcane crops (Saccharum spp) depends on the use of herbicides. Research related to the quality of herbicides application by the width of the spray boom, weather and terrain declivity in path planning areas for agricultural mechanization of sugarcane are still unclear. It has been hypothesized that the path planning areas can favor the use of larger width spray booms, regardless of weather conditions found at the time of application and the declivity. Here we evaluate the coverage and uptake by spraying herbicide in sugarcane crop due the spray boom size, terrain declivity and weather condition. The experimental design was a randomized block in a factorial 2 x 2 x 2, with four replications. The factor levels were made by combining the result of the spray boom width (15 and 27 m), terrain declivity (0 to 5% and 5,1 to 10%) and weather condition (recommended and adverse). The data were submitted to F test analysis of variance (ANOVA) and the means of the plots were compared using the Tukey test at 5% probability. The coverage of droplets was higher with the bigger spray boom, on upper declivity and under weather condition recommended. About the deposition on the artificial collectors, uptake was higher using the spray boom more width and under weather condition recommended. Otherwise, there was a significant effect of declivity on spray deposit values over the artificial targets