Página 1 dos resultados de 1 itens digitais encontrados em 0.062 segundos

Efeito da aplicação de silicato de cálcio e magnésio no desenvolvimento biológico de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) em milho (Zea mays) (Poaceae); Effect of calcium and magnesium in biological development os Spodoptera frugiperda (JE Smith, 1797) (Lepidoptera: Noctuidae) on corn (Zea mays) (Poaceae)

Barbosa, Tiago Jorge de Araújo
Fonte: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL Publicador: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
45.86%
The study was conducted to evaluate the effect of different doses of silicon, applied to the soil, in biological development of Spodoptera frugiperda (J. E. Smith, 1979) (Lepdoptera: Noctuidae). It was developed in two phases, the first one in a greenhouse and Laboratory of Entomology and the second one in a field, both at the Centre of Agricultural Sciences of Universidade Federal de Alagoas, Rio Largo, AL. The design experiment was completely randomized in blocks at random, for the first and second stages, respectively. Five were used in both treatments, which were represented by different doses of silicon (without application; 500kg.ha-1 of SiO2; 1.000kg.ha-1 of SiO2; 1.500kg.ha-1 of SiO2 and 2.000kg.ha-1 of SiO2) applied to the soil with calcium silicate and magnesium 10.5% silicon, divided into two applications. The first step tests were performed to evaluate resistance (in greenhouse and in the laboratory), with fisrts instar caterpillars from the creation of maintenance, in the first 24hours after the outbreak. The second step was performed in a total area of 128,5m², divided into four blocks, where we evaluated the injuries caused by the plague in four different seasons (15, 30, 45 and 60 days after plants emergence), the infestation and productivity. To evaluate injury...