Penetração de gotas e rendimento de grãos em função do arranjo de plantas, cultivares e volume de calda na cultura da soja

• Ano de defesa: 2009
• Autor(a) principal: Fiorin, Rubens Alex
• Orientador(a): Guedes, Jerson Carus
• Banca de defesa: Nava, Dori Edson , Jauer, Adilson
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria
• Programa de Pós-Graduação: Programa de Pós-Graduação em Agronomia
• Departamento: Agronomia
• País: BR
• Palavras-chave em Português: População de plantas; Espaçamento entre linhas; Cultivares; Pulverização; Produtividade; Densidade de gotas; Tecnologia de aplicação
• Palavras-chave em Inglês: Plant population; Row spacing; To cultivate; Spray; Yield; Density of droplets; Application technology
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
• Link de acesso: http://repositorio.ufsm.br/handle/1/4998

The objective of this study was to evaluate the penetration of spray droplets and grain yield depending on the cultivar, on the arrangement of plants and the spray volume in three stages of soybean. For this two experiments they had been developed in the experimental area of the Department of Fitossanitária Defense of the Federal University of Maria/RS. In the first experiment was used the spacing of 45.0, 52.5 and 60.0 cm between the row and the population of 150,000, 250,000 and 350,000 plants ha-1, being evaluated to cultivate Fundacep 55 and in as the experiment were used will cultivate Fundacep 55 and BRS 243 RR was used the spacing of 30,0; 45,0 and 60,0 cm, kept sine the population in 250.000 plants ha- 1. The penetration of drops was evaluated in the V8 stage using the volumes of 75, 100 and 150 l ha-1 and in stages V14 and R3 using the volumes o 100, 150, 200, 250 and 300 l ha-1. The larger spacing and lower plant population of the greater penetration of drops, but the opposite occurs with yield. In cultivar BRS 243 received a higher number of drops which is also more productive when compared to cultivate Fundacep 55. The increase in the volume of spray increases the number of gotas cm-2, especially when the crop is in advanced stage (R3).