Floristic composition of weeds in  different winter and summer covers

Caratti, Fernanda Cassiane; Lamego, Fabiane Pinto; Reinehr, Marcela; Fabiani, Mirian Fracasso; Frizon, Daiane; Mazzon, Marines

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dc.creator	Caratti, Fernanda Cassiane
dc.creator	Lamego, Fabiane Pinto
dc.creator	Reinehr, Marcela
dc.creator	Fabiani, Mirian Fracasso
dc.creator	Frizon, Daiane
dc.creator	Mazzon, Marines
dc.date	2018-11-04
dc.date.accessioned	2022-03-21T20:07:49Z
dc.date.available	2022-03-21T20:07:49Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/1268
dc.identifier	10.14295/cs.v9i3.1268
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77782
dc.description	The usage of cover crops is an adopted cultural measure that shows positive effects when associated with the no-till system and weed management. During the cycle of the plants there might be competition within them for water, solar radiation and nutrients and effects of allelopathic substances released by leaching, volatilization and/or root exudation in the environment might also coexist. The study aimed to quantify the floristic composition of weed species in an cultivated area with cover crops during winter and summer, for two years, 2011/12 and 2012/13, in an experimental area of UFSM, Campus of Frederico Westphalen – RS state, Brazil. The treatments consisted of Italian ryegrass, wild radish, black oat, vetch, wheat and uncultivated, in winter, and, sorghum, sunflower, black velvet bean, dwarf velvet bean, gray velvet bean and green velvet bean in the summer. In the first year of the experiment, a diversity of weeds in winter was observed, especially occuring Stellaria media and Bowlesia incana. In summer, the weeds of higher importance were Ipomoea spp. and Bidens spp., both of utter importance in agricultural systems. Winter cover crops of wild radish and Italian ryegrass and summer cover crops of sorghum and sunflower provided a lower weed infestation	en-US
dc.description	The usage of cover crops is an adopted cultural measure that shows positive effects when associated with the no-till system and weed management. During the cycle of the plants there might be competition within them for water, solar radiation and nutrients and effects of allelopathic substances released by leaching, volatilization and/or root exudation in the environment might also coexist. The study aimed to quantify the floristic composition of weed species in an cultivated area with cover crops during winter and summer, for two years, 2011/12 and 2012/13, in an experimental area of UFSM, Campus of Frederico Westphalen – RS state, Brazil. The treatments consisted of Italian ryegrass, wild radish, black oat, vetch, wheat and uncultivated, in winter, and, sorghum, sunflower, black velvet bean, dwarf velvet bean, gray velvet bean and green velvet bean in the summer. In the first year of the experiment, a diversity of weeds in winter was observed, especially occuring Stellaria media and Bowlesia incana. In summer, the weeds of higher importance were Ipomoea spp. and Bidens spp., both of utter importance in agricultural systems. Winter cover crops of wild radish and Italian ryegrass and summer cover crops of sorghum and sunflower provided a lower weed infestation	pt-BR
dc.format	application/pdf
dc.language	eng
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/1268/563
dc.source	Comunicata Scientiae; Vol. 9 No. 3 (2018); 322-331	en-US
dc.source	Comunicata Scientiae; v. 9 n. 3 (2018); 322-331	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	levantamento fitossociológico	pt-BR
dc.subject	palhada	pt-BR
dc.subject	supressão	pt-BR
dc.title	Floristic composition of weeds in different winter and summer covers	en-US
dc.title	Floristic composition of weeds in different winter and summer covers	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion