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- W2785181806 abstract "RESUMO - Este trabalho teve como objetivo avaliar os efeitos do arranjo espacial e da densidade de semeadura na produtividade de cinco híbridos de milho, em dois locais no cultivo de verão. Foram utilizados espaçamentos de 80 cm e de 45 cm entrelinhas, e densidades de semeadura de 42.000, 52.000, 62.000 e 85.000 plantas ha-1. As avaliações foram conduzidas em Cascavel-PR e em Rio Verde-GO. Foram observados efeitos significativos para os fatores principais (híbrido, espaçamento entrelinhas e densidade), mas não foram observadas interações entre os fatores, com exceção da interação densidade x híbrido em Rio Verde. Houve maior efeito do espaçamento entrelinhas do que da densidade populacional na produtividade de todos os híbridos. No espaçamento de 45 cm entrelinhas, os híbridos produziram, em média, 36% a mais do que no espaçamento de 80 cm, nos dois locais avaliados. Houve aumento de produtividade com aumento da densidade de semeadura até 75 mil plantas ha-1 em Cascavel, e até 85 mil plantas ha-1 em Rio Verde. Palavras-chave: Zea mays, arranjo espacial de plantas, sistemas de cultivo. COMBINING ROW SPACING AND POPULATION DENSITY IN INCREASING MAIZE YIELD ABSTRACT - This study aimed to evaluate the effects of spatial arrangement and plant density from five corn hybrids at two locations in the summer season. Row spacing used were 80 cm and 45 cm between rows and plant densities were 42,000, 52,000, 62,000 and 85,000 plants ha-1. The evaluations were conducted in Cascavel, State of Paraná, and Rio Verde, State of Goiás, Brazil. Significant effects were observed for the main effects (hybrid, row spacing and density), but there were no interactions between the main effects, with the exception of the interaction between density x hybrid in Rio Verde. There was a greater effect of row spacing than the population density on yield of all hybrids. With the row spacing at 45 cm the hybrids yielded, on average, 36% more than at a spacing of 80 cm, in the two locations. There was a trend for increased productivity with increased seeding rate up to 75,000 plants ha-1 in Cascavel, and up to 85,000 plants ha-1 in Rio Verde. Keywords: Zea mays, spatial arrangements, cultivation systems." @default.
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- W2785181806 date "2017-12-29" @default.
- W2785181806 modified "2023-10-01" @default.
- W2785181806 title "COMBINAÇÃO DE ESPAÇAMENTO ENTRELINHAS E DENSIDADE POPULACIONAL NO AUMENTO DA PRODUTIVIDADE EM MILHO" @default.
- W2785181806 doi "https://doi.org/10.18512/1980-6477/rbms.v16n3p440-448" @default.
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