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Registros recuperados: 18
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Cladocers, Copepods and Rotifers in rice-fish culture handled with metsulfuron-methyl and azimsulfuron herbicides and carbofuran insecticide Ciência Rural
Golombieski,Jaqueline Ineu; Marchesan,Enio; Baumart,Joele Schmitt; Reimche,Geovane Boschmann; Resgalla Júnior,Charrid; Storck,Lindolfo; Santos,Sandro.
This study determined the effects of metsulfuron-methyl, azimsulfuron and carbofuran in communities: Cladocers, Copepods and Rotifers that are present in irrigated rice farming with the rice-fish system. The field experiment was conducted in the 2004/05 growing season with eight treatments. The fish species were: Cyprinus carpio, Ctenopharyngodon idella and Aristichthys nobilis, introduced seven days after treatments were applied. Water samples were collected 17 days before and 1st, 3rd, 10th, 18th, 31th, 51th, and 75th days after the agrochemicals were applied for identification and evaluation of the zooplankton. The results indicated that the herbicides did not affect the zooplankton community studied and carbofuran insecticide application provoked...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agrochemicals; Non-target organisms; Zooplankton communities; Rice culture.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000800001
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Comparative economic evaluation of solarization in agriculture. Repositório Alice
SHIROTA, R.; GHINI, R.; PACHECO, F.B..
1996
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Agriculture; Environmental contamination; Soil solarization; Economic evaluation; Agrochemicals; Environmental impact; Benefit-cost analysis; Soil.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/handle/doc/12547
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Correlation between 2,4-D herbicide residues and soil attributes in southern of Brazil Rev. Ciênc. Agron.
Baumgartner,Denilson; Souza,Eduardo Godoy de; Coelho,Silvia Renata Machado; Maggi,Marcio Furlan.
ABSTRACT The 2,4-D herbicide is widely used in Brazilian and global agriculture to control weeds. It is potentially toxic to mankind, and one of the herbicides final destinations is the soil. The aim of the study was to determine the spatial correlation of 2,4-D herbicide in soil attributes after 12 months of application. The experiment was conducted in an agricultural area of 5.04 ha in the municipality of Nova Santa Rosa/PR, in 2011 and 2012. Two soil samples collections were performed: collection 1 (09/03/2011) and collection 2 (08/25/2012), both of which were made 12 months after 2,4-D application. The herbicide was applied in a single dose of 1.5 L ha-1 in 09/2010 and in two doses in 09/2011 (1.0 L ha-1or 1.5 L ha-1 2,4-D). The correlation between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agrochemicals; Weeds; Spatial distribution.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000300428
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Determinação de agrotóxicos e ocratoxina A em café arábica sob diferentes níveis de torrefação. Infoteca-e
ROSA, J. S. da; FREITAS-SILVA, O.; CAMPOS, R. da S.; CASTRO, I. M. de; TEIXEIRA, A. da S..
O café é a segunda maior commodity do mundo e tamanha importância faz do café uma matriz alimentar muito estudada. A necessidade de incremento na produtividade dessa cultura, porém, pode aumentar o uso de alguns agrotóxicos em sistemas de produção de café. Da mesma forma, as práticas de colheita e processamento pós-colheita do café estão diretamente relacionadas à contaminação dos grãos por fungos micotoxigênicos. Rastrear a presença destes dois tipos de contaminantes em amostras de café Arábica comum (com diferentes teores de grãos defeituosos) e submetidos a diferentes níveis de torra foi o objetivo deste trabalho. Os agrotóxicos foram analisados pelo método multirresíduo, por espectrometria de massas sequencial, e a ocratoxina A, por cromatografia...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Contaminante; Cromatografia líquida de alta eficiência; Micotoxina; Coffea Arábica; Tecnologia de Alimento; Espectrometria; Cromatografia; Food technology; Vegetable products; High performance liquid chromatography; Mycotoxins; Mass spectrometry; Poisoning; Agrochemicals.
Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112112
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Environmental Effects of Irrigation in Arid and Semi-Arid Regions Chilean J. Agric. Res.
Fernández Cirelli,Alicia; Arumí,José Luis; Rivera,Diego; Boochs,Peter  W.
This article reviews the state of the art with respect to the environmental effects of irrigated agriculture on water and soil quality in arid and semi-arid regions on a field scale. Information is scarce and fragmentary. Examples in selected areas of other arid and semi-arid regions in the world clearly show the importance of studying the environmental impact of irrigation practices on water and soil quality. Studies mainly refer to waterlogging and salinization. As regards agrochemicals, fertilizers have been taken into account through nitrate leaching. The impact of micropollutants such as pesticides and heavy metals on water and soil quality is studied mainly by modeling. Pharmaceutical compounds emerge as pollutants when wastewater is used for...
Tipo: Journal article Palavras-chave: Irrigation; Water quality; Soil quality; Agrochemicals; Micropollutants.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000500004
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Fluxos de nutrientes e agrotóxicos nos recursos hídricos sob diferentes usos de terra na bacia do rio Jardim, Distrito Federal. Repositório Alice
VARGAS, L. M. P.; LIMA, J. E. F. W.; OLIVEIRA FILHO, E. C. de; SILVA, E. M. da.
2009
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Cerrado; Recurso hídrico; Nutriente; Agrotóxico; Água; Solo; Bacia hidrográfica; Water resources; Nutrients; Agrochemicals; Water; Soil; Watersheds.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/696947
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Hazardous Agrochemicals, Smoking, and Farmers’ Differences in Wage-Risk Tradeoffs AgEcon
Nastis, Stefanos A.; Michailidis, Anastasios.
This paper utilizes the theory of compensating differentials for job risks from the labor economics literature to evaluate farmers’ differences in wage-risk tradeoffs. In the context of job risks, the theory predicts that farmers who place a lower value on health status are willing to work for lower compensation on a risky job. The aim of the paper is to evaluate how the observed wage-risk tradeoff is affected by individual heterogeneity in risk preferences, by acknowledging variations in farmers’ revealed attitudes toward risk, both in job-related and non-job activities. The job risk measure employed is self-reported job risk of low back pain, the most recurring health risk faced by farmers. The job-related risky activity is the application of hazardous...
Tipo: Conference Paper or Presentation Palavras-chave: Agrochemicals; Smoking; Farming job risk; Compensating differentials; Risk preferences; Health impairment; Agribusiness; Farm Management; Health Economics and Policy; Labor and Human Capital.
Ano: 2010 URL: http://purl.umn.edu/109389
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Influencia das atividades antropicas sobre os peixes da bacia hidrografica do rio Miranda, periodo de 1985 a 1987. Infoteca-e
RESENDE, E.K. de..
Face ao grande impacto causado pela mortandade macica de peixes ocorrida no rio Miranda em outubro de 1985, observada na regiao do Passo do Lontra, foi desenvolvido este trabalho, a partir de informacoes secundarias, com o objetivo de avaliar as possiveis fontes de contaminacao/degradacao existentes na bacia. As possiveis fontes provenientes do uso de defensivos agricolas, do uso da terra para as diferentes atividades agropastoris bem como as atividades industriais e o Impacto dos aglomerados urbanos na regiao foram avaliados. E parte de um projeto maior onde se efetua a caracterizacao limnologica da bacia e os estudos bio-ecologicos das principais especies de peixes de importancia comercial.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Peixe; Mortandade; Agrotoxico; Impacto ambiental; Ecofauna; Pantanal; Fish; Mortality; Agrochemicals; Contamination; Degradation.
Ano: 1995 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/787793
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Métodos de destruição de restos de cultura do algodoeiro e sobrevivência do bicudo. Repositório Alice
RIBEIRO, E. B.; CASTELLANI, M. A.; SILVA, C. A. D. da; MELO, T. L.; SILVA, G. dos S.; VALE, W. S. do; SANTOS, A. S..
O objetivo deste trabalho foi avaliar a eficiência de métodos de destruição dos restos de cultura do algodoeiro (Gossypium hirsutum) para a redução da população remanescente do bicudo‑do‑algodoeiro (Anthonomus grandis). O experimento foi conduzido em blocos ao acaso, com quatro repetições e cinco tratamentos: roçagem, com aplicação de 2,4-D e beta-ciflutrina; roçagem, com aplicação de 2,4-D e glifosato; roçagem e gradagem; roçagem, com aplicação de 2,4-D e beta-ciflutrina, além de gradagem; e testemunha (sem destruição). A quantidade de bicudos foi determinada após a destruição dos restos de cultura do algodão, por contagem dos insetos capturados nas armadilhas de feromônio e daqueles encontrados dentro dos carimãs, no interior das...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Agroquímico; Destruição mecânica; Survival; Mechanical destruction; Anthonomus grandis; Gossypium hirsutum; Sobrevivência; Anthonomus grandis; Gossypium hirsutum; Agrochemicals.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1041662
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Nanotechnologies associated to floral resources in agri-food sector Acta Agron. (Palmira)
Ammar,Ahmad S.
Abstract Nanotechnology advent in agri-food sector is set to prompt next revolution in agricultural engineering. However, there is a perpetually rising need for development of new nanotechnologies that could synchronically work with various agrochemicals such as fertilizers, pesticides, herbicides, and growth promoters to potentially increase farmlands efficiency, preserve agro-ecosystems, and diminish the negative health risks imposed by conventional practices. In nanotechnology, smart delivery systems that utilize either nanoscale carriers such as clay nanotubes and carbon nanotubes or nanoparticles such as mesoporous silica nanoparticles and silver nanoparticles, could enable not only the accurate and targeted delivery of functional ingredients but also...
Tipo: Journal article Palavras-chave: Agrochemicals; Bioremediation; Crop breeding; Micro-fabricated xylem vessels; Smart delivery systems; Smart nano-dust.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100146
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Panorama da contaminação ambiental por agrotóxicos e nitrato de origem agrícola no Brasil: cenário 1992/2011. Infoteca-e
GOMES, M. A. F.; BARIZON, R. R. M..
O objetivo deste trabalho foi identificar e avaliar o cenário de uso e presença de agrotóxicos e fertilizantes nitrogenados no Brasil, com destaque para o nitrato (N-NO3-), tendo como referência a legislação pertinente ao tema e à base de dados gerados pela comunidade científica nas últimas duas décadas. Com isso, espera- se obter um diagnóstico mais próximo da realidade sobre a presença e contaminação do solo e da água por estas substâncias, para que assim esse diagnóstico sirva de alerta, e principalmente, de apoio às iniciativas direcionadas ao controle e uso racional dessas substâncias.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Brasil; Meio ambiente; Poluição ambiental; Agrotóxico; Nitrato; Pollution; Environment; Pesticides; Agrochemicals; Nitrate fertilizers.
Ano: 2014 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/987245
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Pesticides in the propolis at São Saulo State, Brazil - doi: 10.4025/actascianimsci.v34i4.15859 Animal Sciences
Orsi, Ricardo Oliveira; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Barreto, Lidia Maria Ruv Carelli; Universidade de Taubaté; Gomes, Silvia Maria Alves; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Kadri, Samir Moura; Universidade Estadual Paulista “Júlio de Mesquita Filho”.
The increasing demand for propolis has caused a raise in its production. However, an increasingly pesticide-dependent agriculture is a great concern with regard to bees, their produce and environmental contamination. Current analysis evaluates the presence of pesticides (organochlorines, organophosphates, pyrethroids, carbamates, herbicides, fungicides and acaricides) in samples of propolis from the state of São Paulo, Brazil. Beekeepers from several localities in the state provided samples of propolis (50), which were collected, stored in non-toxic plastic bags and maintained in a freezer for analyses. Possible pesticide residues were examined by gas chromatography method but no pesticide residues were detected in the examined propolis samples. Propolis...
Tipo: Pesquisa de campo; análise laboratorial Palavras-chave: 5.04.00.00-2; 5.07.01.05-3; 4.06.00.00-9 environmental; Apis mellifera; Agrochemicals; Contamination environmental; Apis mellifera; Agrochemicals; Contamination.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/15859
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Photo-fenton remediation of wastewaters containing agrochemicals BABT
Teixeira,Antonio Carlos Silva Costa; Mendes,Lucas; Stollar,Giselle; Guardani,Roberto; Nascimento,Cláudio Augusto Oller do.
The photochemical degradation of agrochemicals in aqueous solution by means of advanced oxidation processes (AOPs) was studied. The photo-Fenton process was evaluated in terms of the time evolution of dissolved organic carbon (COD) and chemical oxygen demand (DOC), their total removals, and increase in biodegradability of treated wastewater. Under the experimental conditions studied, the process showed to be superior to other AOPs, at any Fe(II) and H2O2 concentrations. The results pointed towards the use of solar irradiation and low cost commercial application.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Advanced Oxidation Processes; Photo-Fenton; Agrochemicals; Wastewater.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400026
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RESIDUE ANALYSIS OF ORGANOCHLORINE AND ORGANOPHOSPHORUS PESTICIDES IN URBAN LAKE SEDIMENTS REA
Cembranel,Adir S.; Frigo,Elisandro P.; Sampaio,Silvio C.; Mercante,Erivelto; Reis,Ralpho R. Dos; Remor,Marcelo B..
ABSTRACT The knowledge of pesticide residual concentrations in the environment is important to understand the threats to the environment and human health, especially when natural resources are used for human consumption. In this context, this study aimed to assess the potential ecological risk and respective sources of sediment contamination by organochlorine and organophosphorus pesticides. The study site was an urban lake located in Cascavel city, western Paraná state, Brazil, where the history of land use and occupation in the urban environment is typically agricultural. Surface sediment samples were collected every three months from April 2010 to June 2013 at five different collection points, totaling 65 samples. Analyses showed that contamination by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agrochemicals; Ecological risk; Land use and occupation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000601254
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Risk assessment of water contamination by agrochemical in watershed. Repositório Alice
LUIZ, A. J. B.; NEVES, M. C.; GOMES, M. A. F.; SPADOTTO, C. A.; LUCHIARI JUNIOR, A..
Intensive agricultural systems are based on the heavy use of pesticides and fertilizers. This fact offer a high contamination risk of the natural resources, even when adequate technical of storage, application and disposal are used. Brasil used in 1993 61,845t of active ingredients of pesticides (insecticide, fungicide and herbicide) and 11,424,635 t of fertilizers (phosphorus, nitrogen and potassium), being the application rates variable as a function of region and crop plants. The use was very high, for example, in corn, cotton, orange, potato, soybean, sugar-cane and tomato in the east region of Rio Parana basin. The risk of agrochemical contamination of the natural resource varies according to the environment and product properties, therefore it is...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Intensive agriculture; Water contamination; Geographic information system; Ribeirao Preto; Agrochemicals; Environment; Fertilizers; Brazil; Natural resources; Pesticides; Water quality.
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/12545
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Scenarios, challenges and opportunities for sustainable agricultural chemistry. Infoteca-e
VAZ JUNIOR, S..
bitstream/item/202219/1/SILVIODOC-30.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Sustainability; Agrochemicals; Biotechnology.
Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112377
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System electro-neutralizer of agrochemicals contained in food and water samples through electrons trap Ciênc. Tecnol. Aliment.
DUVOISIN,Charles Adriano; SOUSA,José Paulo Felipe Afonso de; Pscheidt,André; BARETTA,Dilmar; HORST,Diogo José; VIEIRA,Rogério de Almeida; MOURÃO JR.,Carlos Alberto; SECCHI,Mario Alberto.
Abstract This study presents a system to electro-neutralize agrochemicals in food and water samples based on the properties of a controlled electron trap, the related apparatus is protected under patent application (WO/2018/090110; INPI: BR 10 2016 0268486) / (PCT / BR 2017/050115). The efficacy of the system was verified as to the type, quantity, surface tension charge, temperature, pH and static energy loading of the electrolyte for both solid and liquid samples. It also took into consideration the retention and accumulation measurement of electric charges, verification of electrical potential differences and also accumulation by applying pulsed high voltage in according to the Daniell Cell method. The proposed technology is able to provide the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agrochemicals; Electrolysis; Food security; Neutralization; Toxicity.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200315
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Xenobiotics enhance laccase activity in alkali-tolerant γ-proteobacterium JB BJM
Singh,Gursharan; Batish,Mona; Sharma,Prince; Capalash,Neena.
Various genotoxic textile dyes, xenobiotics, substrates (10 µM) and agrochemicals (100 µg/ml) were tested for enhancement of alkalophilic laccase activity inγ-proteobacterium JB. Neutral Red, Indigo Carmine, Naphthol Base Bordears and Sulphast Ruby dyes increased the activity by 3.7, 2.7, 2.6 and 2.3 fold respectively. Xenobiotics/substrates like p-toluidine, 8-hydroxyquinoline and anthracine increased it by 3.4, 2.8 and 2.3 fold respectively. Atrazine and trycyclozole pesticides enhanced the activityby 1.95 and 1.5 fold respectively.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Γ-proteobacterium; Laccase; Xenobiotics; Dyes; Agrochemicals.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000100004
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