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	Provedor de dados Planta Daninha (2) Autor ALBUQUERQUE,J.A.A. (1) ALVES,J.M.A. (1) BARRETO,G.F. (1) CASTRO,T.S. (1) MAIA,S.S. (1) ROCHA,P.R.R. (1) Rizzardi,Mauro A. (1) Rockenbach,Ana P. (1) Schneider,Theodoro (1) Mais... Palavra-chave Competition (2) Interference periods (2) Pre-emergence (1) Vigna unguiculata (1) Weeds (1) Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2019 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Weed Interference in Semi-Erect and Semi-Prostate Cowpea Cultivars Planta Daninha CASTRO,T.S.; ROCHA,P.R.R.; BARRETO,G.F.; MAIA,S.S.; ALBUQUERQUE,J.A.A.; ALVES,J.M.A.. ABSTRACT: This study aimed to determine weed interference periods in semi-erect and semi-prostrate cowpea cultivars. Two simultaneous experiments were conducted with the cowpea cultivars BRS Guariba (semi-erect) and BRS Aracê (semi-prostrate). The experimental design was a randomized block design with four replications in a 7 × 2 factorial scheme, seven periods × two weed management (control and coexistence). Control and coexistence periods consisted of 0, 0-8, 0-16, 0-24, 0-32, 0-45, and 0-60 days after emergence (DAE) for the semi-erect cultivar and 0, 0-8, 0-16, 0-24, 0-32, 0-45, and 0-64 DAE for the semi-prostrate cultivar. Competition throughout the cycle reduced productivity by up to 39.81% for BRS Guariba and 37.27% for BRS Aracê. The cultivars BRS... Tipo: Info:eu-repo/semantics/article Palavras-chave: Vigna unguiculata; Competition; Interference periods. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100277 Residual herbicides increase the period prior to interference in soybean cultivars Planta Daninha Rizzardi,Mauro A.; Rockenbach,Ana P.; Schneider,Theodoro. Abstract Background: The pre-emergence herbicides diclosulam and flumioxazin are used to weed control in soybean. We hypothesized management of the new emergence of weeds in the early development stages of the soybean could alter the periods of interference. Thus, the period prior to interference allows and increases the canopy closure spaces before the critical period and disfavors the development of weeds inside the vegetative canopy. Objective: This study aimed to evaluate whether the period prior to interference of soybean cultivars was altered due to the application of residual pre-emergence herbicides. Methods: Two experiments were conducted with the soybean cultivars ‘NA 5909 RG’ and ‘P95R51’. One day before sowing in the main plots, the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Interference periods; Pre-emergence; Competition; Weeds. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100335 Registros recuperados: 2 Primeira ... 1 ... Última

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