Management of winter and summer weeds in vineyards and olive groves with an ecological fertilizer with herbicidal properties
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
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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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 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
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 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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