Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties

Detalhes bibliográficos
Autor(a) principal: Barreira, António Manuel Teixeira
Data de Publicação: 2018
Outros Autores: Arrobas, Margarida, Cardoso, Carlos, Rodrigues, M.A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/20082
Resumo: Weeds reduce crop yields and require annual measures of control, although they can provide important ecological benefits. In this work, the efficacy was tested of an ecological fertilizer with herbicidal properties (Bioscrop Herbitec®) which in high concentrations (10-15%) can have a similar effect to a contact herbicide. The composition of the product is 6.0 % of water-soluble potassium oxide, 54.7 % of organic acids and 39.3 % of dispersants and diluents. The product was tested in six field trials during two years, which included two vineyards and two olive orchards and winter and spring vegetation. In each experiment three treatments were imposed, being the product applied at the concentrations of 10% and 15% and a non-treated control. In treated plots, the entire ground surface (rows and inter-rows) was sprayed. The evaluation of the effect of the treatments on vegetation was assessed by the pin point and grid methods which consisted of determining the percentage of damaged and not damaged vegetation and bare soil. The production of dry biomass of weeds was also evaluated as a measure of the persistence of the damage on vegetation. The floristic composition of the stands was also recorded to evaluate the specific susceptibility of the weeds to the different treatments. The results showed that the product severely damaged the vegetation, and the effect persisted for more than a month. The application of the product caused a severe reduction in the aboveground biomass while keeping the soil protected, showing a useful compromise between the reduction in weed competition and the maintenance of ground cover. Some species were severely damaged while others seemed to have benefited in relative terms, suggesting that the effectiveness of the product will be dependent on the weed species present.
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spelling Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal propertiesGestão de infestantes de inverno e primavera em vinha e olival com um fertilizante ecológico com propriedades herbicidasCover croppingEcological weed managementOlea europaeaVitis viniferaWeeds reduce crop yields and require annual measures of control, although they can provide important ecological benefits. In this work, the efficacy was tested of an ecological fertilizer with herbicidal properties (Bioscrop Herbitec®) which in high concentrations (10-15%) can have a similar effect to a contact herbicide. The composition of the product is 6.0 % of water-soluble potassium oxide, 54.7 % of organic acids and 39.3 % of dispersants and diluents. The product was tested in six field trials during two years, which included two vineyards and two olive orchards and winter and spring vegetation. In each experiment three treatments were imposed, being the product applied at the concentrations of 10% and 15% and a non-treated control. In treated plots, the entire ground surface (rows and inter-rows) was sprayed. The evaluation of the effect of the treatments on vegetation was assessed by the pin point and grid methods which consisted of determining the percentage of damaged and not damaged vegetation and bare soil. The production of dry biomass of weeds was also evaluated as a measure of the persistence of the damage on vegetation. The floristic composition of the stands was also recorded to evaluate the specific susceptibility of the weeds to the different treatments. The results showed that the product severely damaged the vegetation, and the effect persisted for more than a month. The application of the product caused a severe reduction in the aboveground biomass while keeping the soil protected, showing a useful compromise between the reduction in weed competition and the maintenance of ground cover. Some species were severely damaged while others seemed to have benefited in relative terms, suggesting that the effectiveness of the product will be dependent on the weed species present.As infestantes reduzem a produtividade das culturas e requerem medidas anuais de combate, embora também possam fornecer importantes serviços ecossistémicos. Neste trabalho foi testada a eficácia de um produto ecológico (Bioscrop Herbitec®) que, em altas concentrações (10- 15%), pode ter um efeito semelhante ao de um herbicida de contato. O produto contém 6,0 % de óxido de potássio solúvel em água, 54,7 % de ácidos orgânicos e 39,3 % de dispersantes e diluentes. O produto foi testado em seis ensaios de campo, em duas vinhas e dois olivais e sobre vegetação de inverno e de primavera. Em cada ensaio foram testados três tratamentos, correspondentes à aplicação do produto em duas concentrações (10 e 15%) e uma modalidade testemunha. Nos talhões tratados o produto foi aplicado nas linhas e entrelinhas. O efeito dos tratamentos na vegetação foi avaliado pelos métodos do ponto quadrado e da grelha, que consistiram em determinar o grau de cobertura do solo com vegetação danificada, não danificada e solo nu. A produção de matéria seca das infestantes foi também avaliada como medida da persistência do dano na vegetação. A composição florística dos cobertos foi também registada como forma de avaliar a suscetibilidade específica das infestantes aos diferentes tratamentos. Os resultados mostraram que o produto danificou severamente a vegetação e o efeito persistiu por mais de um mês. A aplicação do produto causou uma redução significativa da biomassa aérea, mas manteve o solo protegido, mostrando um equilíbrio interessante entre a redução da competição das infestantes e a proteção do solo. Algumas espécies foram fortemente danificadas, enquanto outras parecem ter beneficiado em termos relativos, sugerindo que a eficácia do produto dependerá das espécies infestantes presentesThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2013). The results of the first year of studies of this work were extracted from the master's thesis in Agroecology of the first author (António Barreira)Biblioteca Digital do IPBBarreira, António Manuel TeixeiraArrobas, MargaridaCardoso, CarlosRodrigues, M.A.2018-01-19T10:00:00Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/20082engBarreira, António; Arrobas, Margarida; Cardoso, Carlos; Rodrigues, M. Ângelo (2019). Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties. Ciencia e Tecnica Vitivinicola. ISSN 0254-0223. 34, p. 36-470254-022310.1051/CTV/20193401036info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:45:53Zoai:bibliotecadigital.ipb.pt:10198/20082Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:10:52.728406Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
Gestão de infestantes de inverno e primavera em vinha e olival com um fertilizante ecológico com propriedades herbicidas
title Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
spellingShingle Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
Barreira, António Manuel Teixeira
Cover cropping
Ecological weed management
Olea europaea
Vitis vinifera
title_short Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
title_full Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
title_fullStr Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
title_full_unstemmed Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
title_sort Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
author Barreira, António Manuel Teixeira
author_facet Barreira, António Manuel Teixeira
Arrobas, Margarida
Cardoso, Carlos
Rodrigues, M.A.
author_role author
author2 Arrobas, Margarida
Cardoso, Carlos
Rodrigues, M.A.
author2_role author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Barreira, António Manuel Teixeira
Arrobas, Margarida
Cardoso, Carlos
Rodrigues, M.A.
dc.subject.por.fl_str_mv Cover cropping
Ecological weed management
Olea europaea
Vitis vinifera
topic Cover cropping
Ecological weed management
Olea europaea
Vitis vinifera
description Weeds reduce crop yields and require annual measures of control, although they can provide important ecological benefits. In this work, the efficacy was tested of an ecological fertilizer with herbicidal properties (Bioscrop Herbitec®) which in high concentrations (10-15%) can have a similar effect to a contact herbicide. The composition of the product is 6.0 % of water-soluble potassium oxide, 54.7 % of organic acids and 39.3 % of dispersants and diluents. The product was tested in six field trials during two years, which included two vineyards and two olive orchards and winter and spring vegetation. In each experiment three treatments were imposed, being the product applied at the concentrations of 10% and 15% and a non-treated control. In treated plots, the entire ground surface (rows and inter-rows) was sprayed. The evaluation of the effect of the treatments on vegetation was assessed by the pin point and grid methods which consisted of determining the percentage of damaged and not damaged vegetation and bare soil. The production of dry biomass of weeds was also evaluated as a measure of the persistence of the damage on vegetation. The floristic composition of the stands was also recorded to evaluate the specific susceptibility of the weeds to the different treatments. The results showed that the product severely damaged the vegetation, and the effect persisted for more than a month. The application of the product caused a severe reduction in the aboveground biomass while keeping the soil protected, showing a useful compromise between the reduction in weed competition and the maintenance of ground cover. Some species were severely damaged while others seemed to have benefited in relative terms, suggesting that the effectiveness of the product will be dependent on the weed species present.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-19T10:00:00Z
2019
2019-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/20082
url http://hdl.handle.net/10198/20082
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Barreira, António; Arrobas, Margarida; Cardoso, Carlos; Rodrigues, M. Ângelo (2019). Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties. Ciencia e Tecnica Vitivinicola. ISSN 0254-0223. 34, p. 36-47
0254-0223
10.1051/CTV/20193401036
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