1068
10
20655
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https://www.socictopen.socict.org/files/original/e32322e4852cb75f1984d634440e7e0b.pdf
9fabda0b55ab800938e729b3766c2d4a
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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<b>Produção de mudas de espécies forrageiras no sistema hidropônico de leito flutuante (<em>floating</em>) com solução nutritiva à base de biofertilizante ou adubo solúvel</b> - DOI: 10.4025/actascianimsci.v31i4.4290 <b>Production of seedlings of forage species in floating hydroponics system with biofertilizer or soluble fertilizer</b> - DOI: 10.4025/actascianimsci.v31i4.7459
Creator
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Júlio Graeff Erpen, Sérgio Augusto Ferreira de Quadros, Ricardo Probst, Mário Luiz Vincenzi
Description
An account of the resource
Neste trabalho objetivou-se avaliar a sobrevivência das estacas e a produção de matéria seca na fase de cultivo de mudas das espécies forrageiras missioneira gigante (Axonopus catharinensis), amendoim forrageiro (Arachis pintoi) e maku (Lotus uliginosus cv. Maku). No sistema hidropônico de leito flutuante com solução nutritiva à base de biofertilizante ou adubo solúvel. O delineamento experimental adotado foi o de blocos ao acaso em esquema fatorial 3 x 2, sendo três espécies forrageiras e duas soluções nutritivas. As espécies não apresentaram diferença quanto à sobrevivência (p = 0,225), independentemente do tipo de fertilizante (p = 0,92). No entanto, quando se quantificou a produção de MS planta-1 proporcionada por cada uma dessas espécies, o maku (p = 0,001) obteve as maiores quantidades (47,18 g), enquanto o amendoim forrageiro (19,90 g) e a missioneira gigante (16,81 g) foram semelhantes entre si (p = 0,227), tendo o mesmo ocorrido entre os fertilizantes (p = 0,559). Deste modo, as três espécies possuem condições semelhantes de sobrevivência, independentemente da concentração de nutrientes da solução nutritiva, com o maku proporcionando a maior produção de MS planta-1.Production of seedlings of forage species in floating hydroponics system with biofertilizer or soluble fertilizer. The aim of this work was to evaluate the survival and dry matter production during the seedling culture phase of three forage species: Axonopus catharinensis, forage peanut (Arachis pintoi), and greater lotus (Lotus uliginosus cv. Maku), in a floating hydroponic system using biofertilizer or soluble fertilizer. The experimental design adopted was randomized blocks in a 3 x 2 factorial scheme, with three forage species and two fertilizers. There was no difference between species with regard to survival (p = 0.225), regardless of the fertilizer used (p = 0.92). However, when dry matter production was considered, Maku (p = 0,001) showed greater weight (47.18 g), while there was no difference (p = 0.227) in weight between Arachis pintoi (19.90 g) and Axonopus catharinensis (16.81 g) or between fertilizers (p = 0.559). Thus, all three forage species have similar survival conditions, regardless of nutrient concentration of the fertilizer, and Maku had greater dry matter production.
Date
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2009
Subject
The topic of the resource
Hidroponia, Maku, amendoim-forrageiro, missioneira gigante (Axonopus catharinensis), pastagem
Identifier
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10.4025/actascianimsci.v31i4.7459
Source
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Acta Scientiarum: Animal Sciences
Publisher
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Editora da Universidade Estadual de Maringá (Eduem)
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Animal culture
Relation
A related resource
<a href="http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7459" target="_blank" rel="noreferrer noopener">http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7459</a>
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https://www.socictopen.socict.org/files/original/0419e02e0d4e1f72514e5541a5204106.pdf
8138fcd765c69211ca12d42b5ee56c3f
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Quintais medicinais e produtivos como alternativa para restauração do Cerrado
Creator
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Viviane Mallmann, Lucas Wagner Ribeiro Aragão, Roberta Fernanda Ribeiro Aragão, Valdeci José Pestana, Edineia Messias Martins Bartieres
Description
An account of the resource
O modelo de agricultura familiar se destaca por apresentar facilidade e adaptação aos princípios da agricultura orgânica e agroecológica, sobretudo pela indução do equilíbrio ecológico, reciclagem de nutrientes, insumos caseiros, conservação do solo e controle de pragas e doenças de maneira ecológica. Diante disso, um grupo de agricultores do município de Sidrolândia-MS, após serem assentados em 2014, decidiram iniciar um trabalho de manutenção dos solos nos quintais de suas propriedades, com o objetivo de recuperar o solos degradados por ação antrópica, e consequentemente o banco de sementes do local, transformando os espaços, tornando-os quintais produtivos e medicinais, com plantas nativas e exóticas, iniciando em pequenos espaços, com a ideia de ir ocupando o panorama de toda a propriedade com o passar dos anos. Dentre os resultados destacou-se que após seis meses de intervenção os quintais das propriedades apresentavam flores de diferentes espécies, seguidas de árvores frutíferas. O próximo passo será implantar o sistema numa área maior e em outras propriedades, possibilitando que outros espaços iniciem o processo de restauração e geração de renda.
Date
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2018
Subject
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Equilíbrio ecológico. Flores. Nutrientes
Identifier
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10.30612/re-ufgd.v5i9.8579
Source
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RealizAção
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Universidade Federal da Grande Dourados
Coverage
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General Works
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<a href="http://ojs.ufgd.edu.br/index.php/realizacao/article/view/8579" target="_blank" rel="noreferrer noopener">http://ojs.ufgd.edu.br/index.php/realizacao/article/view/8579</a>
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https://www.socictopen.socict.org/files/original/52240147f1fd4612e8996587a18aed37.pdf
8ad03696f4d49122556a8481c30410af
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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A agricultura familiar em Portugal: rupturas e continuidades
Creator
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Renato Miguel do Carmo
Description
An account of the resource
Em Portugal, as ciências sociais têm estudado a agricultura familiar a partir de um modelo de interpretação dualista que acentua as diferenças inter-regionais, marginalizando, até certo ponto, o significado sociológico de algumas continuidades que se estabeleciam (e se estabelecem) entre as zonas do Norte e do Sul ou entre o Litoral e o Interior. O presente estudo pretende, assim, construir uma perspectiva diferente sobre as modalidades de agricultura familiar em Portugal, procurando identificar, num primeiro momento, uma série de proximidades sociológicas entre os diferentes modos de organização (tradicionais e modernos) das famílias agrícolas e, consequentemente, traçar os eixos para um modelo mais complexo na análise dessas mesmas modalidades.The main goal of this paper is to produce a critical analysis regarding the conception of multiple activities in the Portuguese rural society. This work questions the classic vision of the country that delineates a rigid territorial and sociological divisions (for instance, the distinction between Northern and the Southern region) from which it tends to characterize different types of agriculture. Considering this conception, the paper proposes a different perspective that is capable to integrate differences and resemblances, between some of the social and the economic aspects that have redefined the family organization and their work activities.
Date
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2010
Subject
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Agricultura Familiar, Family farming, Portugal, multiple activities, pluriactividade, rural
Identifier
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10.1590/S0103-20032010000100001
Source
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Revista de Economia e Sociologia Rural
Publisher
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Sociedade Brasileira de Economia e Sociologia Rural
Coverage
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Agriculture (General)
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032010000100001" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032010000100001</a>
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https://www.socictopen.socict.org/files/original/45ec5e0789f549417dc513b9a93a342b.pdf
323c6dba7f6615bf7c72654fb9079f5a
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Bioactivity of aqueous extracts of Clibadium sylvestre (Aubl.) Baill. and Derris amazonica Killip on the aphid Myzus persicae (Sulzer, 1776) (Hemiptera: Aphididae) Bioatividade de extratos aquosos de Clibadium sylvestre (Aubl.) Baill. e Derris amazonica Killip no controle do pulgão Myzus persicae (Sulzer) (Hemiptera: Aphididae)
Creator
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José Djair Vendramim, Camila Cramer Filgueiras, Paulo Roberto Silva Farias, Maria das Graças Cardoso, Edson Marcos Leal Soares Ramos, Fernando Rodrigo de Oliveira Cantão
Description
An account of the resource
Studies with botanical insecticides have become more popular as an alternative to Integrated Pest Management. The purpose of this study was to evaluate the effect of leaf and fruit aqueous extracts, from the species Clibadium sylvestre, and leaves and root of Derris amazonica species at concentrations of 0, 1, 2, 4 and 8%, in the control of the aphid Myzus persicae (Hemiptera: Aphididae). Four experiments were conducted; two tests with choice preference and two tests with no choice preference, giving nine treatments and five repetitions. Phytochemical screening was carried out from the leaves and fruit of the species C. sylvestre and leaves and root of D. amazonica. Evaluations of mortality, number of nymphs, and deterrence index of the insects were conducted 24, 48 and 72 h after the application of the extracts. The aqueous extracts tested from C. sylvestre fruit concentrations had the highest mortality compared to the control; in the analysis of the number of the nymphs, the aqueous extract from fruit at 8% concentration had a higher efficiency than the other treatments. The D. amazonica leaves extract at 1% concentration showed the highest mortality and the lowest number of nymphs. The D. amazonica root extracts increased mortality at all concentrations tested, and the 8% concentration had the fewest nymphs. All treatments showed a deterrent effect. The 72 h period showed the greatest effect of the extracts, on two species of insects.Estudos com inseticidas botânicos vêm ganhando espaço como alternativa no Manejo Integrado de Pragas. Conduziu-se este trabalho com o objetivo de avaliar o efeito de extratos aquosos de folhas e frutos da espécie Clibadium sylvestre, e folhas e raízes da espécie Derris amazonica nas concentrações 0, 1, 2, 4 e 8%, no controle do pulgão Myzus persicae (Hemiptera: Aphididae). Foram conduzidos quatro ensaios, dois testes de preferência sem chance de escolha e dois testes de preferência com chance de escolha, totalizando nove tratamentos com cinco repetições. Foi realizada a triagem fitoquímica das folhas e dos frutos da espécie C. sylvestre e das folhas e das raízes de D. amazonica. As avaliações de mortalidade, número de ninfas e índice de deterrência dos insetos, foram realizadas 24, 48 e 72 horas após a aplicação dos extratos. Os extratos aquosos do fruto do C. sylvestre nas concentrações testadas apresentaram maior mortalidade frente à testemunha, na análise do número de ninfas, o extrato aquoso do fruto do C. sylvestre a 8% apresentou maior eficiência que os demais tratamentos. O extrato da folha de D. amazonica na concentração 1% apresentou maior mortalidade e menor número de ninfas que os demais tratamentos. Os extratos da raiz de D. amazonica aumentaram a mortalidade em todas as concentrações testadas e a concentração 8% da raiz de D. amazonica, apresentou menor número de ninfas. Todos os tratamentos testados apresentaram efeito deterrente. O período de 72 horas foi o que apresentou maior efeito dos extratos, das duas espécies estudadas sobre os insetos.
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
Subject
The topic of the resource
Agricultura orgânica, Inseticidas botânicos, Rotenone, botanical insecticides, cunaniol, organic agriculture, rotenona
Identifier
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10.1590/S1413-70542011000600004
Source
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Ciência e Agrotecnologia
Publisher
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Universidade Federal de Lavras
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Agriculture (General)
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600004" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600004</a>
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https://www.socictopen.socict.org/files/original/e6f65acc63b678c4148e79d1ec318027.pdf
7810973d7c71ebc9c778b3829b61bcc6
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Dairy goat husbandry amongst the household agriculture: herd and economic indexes from a case study in Rio de Janeiro, Brazil A caprinocultura leiteira na agricultura familiar: índices zootécnicos e econômicos de um estudo de caso no estado do Rio de Janeiro, Brasil
Creator
An entity primarily responsible for making the resource
Paulo Marcelo de Souza, Ricardo Augusto Mendonça Vieira, Artur José Cabral, Alberto Magno Fernandes, Douglas Sampaio Henrique, Gabriela Soares Carvalho Pamplona Corte Real
Description
An account of the resource
Two dairy goat systems conducted according to the household model were evaluated in terms of income generation. An enterprise budget analysis was performed using data collected from August, 2004, to July, 2005. Farms named A and B were smallholdings and raised Saanem goats intensively. Herd indexes, incomes, taxes, fuel, energy, concentrates, opportunity costs and interest in capital were computed. Net present value and internal rate of return were estimated to appreciate the business appeal in terms of income generation. Herd indexes were mostly affected by management decisions interfering on the amounts and time-trends related to milk production. Seasonal variation was reduced at unit B due to heat induction, a decision not shared by farmer A. The daily body weight gain of doelings after weaning (89 and 76 g/d for A and B) was low if compared to current recommendations. Average records of lactation (441 and 606 L/doe) and fertility (86.95% and 85.71%) were amongst the literature range. Daily tasks related to unit B consumed 5 hours and 55 minutes for an average milk production of 40.9 L/d, whereas 8 hours and 16 minutes on average were daily spent at unit A in order to produce 32.2 L/d. Unit B presented a total production cost (R$ 0.79548/L) lower than unit A (R$ 1.50239/L), but operated profitably. Unit A presented a positive gross margin (R$ 0.284/L), but operated unprofitably. The income generated on B was equivalent to a monthly salary of R$ 732.96 (US$ 278.52), a competitive income compared to the Brazilian minimum wage of R$ 300.00 (US$ 114.00) paid monthly. These results corroborate the hypothesis that the dairy goat husbandry fits adequately to the household production model and generates income competitively.Dois sistemas de produção de caprinos leiteiros praticados de acordo com o modelo familiar foram avaliados quanto à geração de renda. Um teste para verificação de viabilidade econômica do empreendimento foi executado utilizando-se dados coletados de agosto de 2004 a julho de 2005. As fazendas, denominadas A e B, eram pequenas propriedades produtoras de cabras Saanem em sistema intensivo. Índices de rebanho, rendas, impostos, combustível, energia, concentrado, custos de oportunidade e capital de interesse foram computados para estimação da renda líquida e da taxa de retorno do capital para avaliação do quanto o negócio pode ser atraente em geração de renda. Os índices de rebanho foram afetados significativamente pelas decisões tomadas pelos administradores e interferiram sobre as quantidades e tendências relacionadas à produção de leite. Na unidade B, a variação sazonal reduziu com a indução de cio, uma prática não realizada na unidade A. O ganho de peso diário das cabritas após a desmama (89 e 76 g/dia para A e B) foi baixo em comparação às recomendações atuais. As médias dos registros de lactação (441 e 606 L/cabra) e fertilidade (86,95 e 85,71%) estiveram nos limites preconizados na literatura. Tarefas diárias na unidade B consumiam 5 horas e 55 minutos para produção média de leite de 40,9 L/dia, enquanto na unidade A correspondiam a 8 horas e 16 minutos diários para produção média de 32,2 L/dia. A unidade B apresentou custo total de produção (R$ 0,79548/L) menor que o da unidade A (R$ 1,50239/L), mas operava de forma lucrativa. A unidade A apresentou margem bruta positiva (R$ 0,284/L), mas não operava de forma lucrativa. A renda gerada em B era equivalente a um salário mensal de R$ 732,96 (US$ 278,52), renda competitiva se comparada ao salário mínimo brasileiro, de R$ 300,00 (US$ 114,00) por mês. Estes resultados corroboram a hipótese de que a produção de caprinos leiteiros serve adequadamente ao modelo de produção familiar e gera renda competitiva.
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
Subject
The topic of the resource
Family labour, agribusiness, agronegocio, enterprise budget analysis, trabalho familiar, viabilidade econômica do empreendimento
Identifier
An unambiguous reference to the resource within a given context
10.1590/S1516-35982009000100025
Source
A related resource from which the described resource is derived
Revista Brasileira de Zootecnia
Publisher
An entity responsible for making the resource available
Sociedade Brasileira de Zootecnia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Animal culture
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000100025" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000100025</a>
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https://www.socictopen.socict.org/files/original/1167e2a701abcba96a535b0e66faabcd.pdf
991a56607a8cc0ad81d5348e6d5ac2a5
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Estudio piloto de detección de parásitos en frutas y hortalizas expendidas en los mercados públicos y privados de la ciudad de Bogota D.C.
Creator
An entity primarily responsible for making the resource
Nelsi Andrea Camargo Castillo, Silvia Campuzano
Description
An account of the resource
Las enfermedades transmitidas por los alimentos contaminados, representan un grave problema de salud pública, muchos microorganismos son capaces de sobrevivir a condiciones adversas para su desarrollo, por esta razón pueden encontrarse en las frutas y vegetales crudos. Se pretende con este trabajo, exaltar la importancia de validar e implementar los métodos para detectar parásitos en frutas y hortalizas durante el proceso de las buenas prácticas agrícolas, ya que algunos de estos productos por sus características físicas están más expuestos a contaminación y por lo tanto son portadores de agentes causales de enfermedades. El propósito fue recolectar muestras de frutas y hortalizas de los diferentes puntos de venta, y someterlos a estudio tomando un método de diagnóstico usado por otros autores para el aislamiento de parásitos en este tipo de muestras, una vez procesadas en el laboratorio se identificaron los agentes causales más comunes de los trastornos intestinales. Con los resultados de este estudio, se determinaron los parásitos encontrados en frutas y verduras mediante análisis parasitológico y se compararon los dos productos: frutas y hortalizas en cuanto a la contaminación con parásitos, socializando los resultados con los distribuidores y proponiendo condiciones de prevención. Adicionalmente, se evaluó la inocuidad de los puntos de venta, la calidad de sus servicios y los saneamientos que ofrecen para eliminar la contaminación, proyectando beneficiar a los consumidores y comercializadores de los productos agrícolas, para disminuir el riesgo de contaminación.
Date
A point or period of time associated with an event in the lifecycle of the resource
2006
Identifier
An unambiguous reference to the resource within a given context
10.22490/24629448.350
Source
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NOVA
Publisher
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Universidad Colegio Mayor de Cundinamarca
Coverage
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Biology (General), Medicine (General)
Relation
A related resource
<a href="https://revistas.unicolmayor.edu.co/index.php/nova/article/view/59" target="_blank" rel="noreferrer noopener">https://revistas.unicolmayor.edu.co/index.php/nova/article/view/59</a>
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https://www.socictopen.socict.org/files/original/44966ec0908d3e0f60cd2b0c84497ca7.pdf
cd3b0af3f94bdc47691f78e4657012f7
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Analysis of the policy of food acquisition of family agriculture by the municipalities: the case of PNAE in three microregions of the West of Santa Catarina
Creator
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Darlan Christiano Kroth, Valdecir José Zonin, Tomé Coletti, Willian Simões, Eduardo Von Dentz
Description
An account of the resource
This study aimed to evaluate the governance by the municipalities of the National School Feeding Programme (PNAE), according to Law n. 11.947/2009 which provides for the purchase of food from family farmers at a minimum value of 30% of the resources of the National Fund for Education Development. The work launched case study hand in three micro-regions of the West of Santa Catarina (Chapecó, Concordia and Xanxerê) considering a sample of 31 municipalities. The main results showed that the PNAE has been performing effective, achieving its main objectives in terms of strengthening family agriculture, to provide better nutritional quality for students as well as a promoter the local and regional development. On the other hand, these results could be higher (increasing the efficiency of the policy) if the governance of program by the municipalities were more robust. The survey found that only four municipalities (13% of our sample) perform a program management considered appropriate in terms of developing organizational actions of production, logistical support and technical advice to farmers.
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Subject
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PNAE. Agricultura familiar. Mercados institucionais. Oeste de Santa Catarina
Identifier
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10.17058/redes.v24i1.9697
Source
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Redes
Publisher
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Universidade de Santa Cruz do Sul
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Social Sciences, Social sciences (General), Human ecology. Anthropogeography
Relation
A related resource
<a href="https://online.unisc.br/seer/index.php/redes/article/view/9697" target="_blank" rel="noreferrer noopener">https://online.unisc.br/seer/index.php/redes/article/view/9697</a>
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https://www.socictopen.socict.org/files/original/b3e0a287a4a7be97f5a24008acce036e.pdf
9223b91be47129170ec8ce0dcfe2480b
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Effect of Stoniness on the Hydraulic Properties of a Soil from an Evaporation Experiment Using the Wind and Inverse Estimation Methods
Creator
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Nerea Arias, Iñigo Virto, Alberto Enrique, Paloma Bescansa, Riley Walton, Ole Wendroth
Description
An account of the resource
Stony soils are distributed all over the world. The study of their characteristics has gained importance lately due to their increasing use as agricultural soils. The effect that rock fragments exert on the soil hydraulic properties is difficult to measure in situ, and is usually derived from the fine earth properties. However, the corrections used so far do not seem accurate for all types of stony soils. Our objective was to assess the adequacy of estimating the hydraulic properties of a stony soil from the fine earth ones by correcting the latter by the volume occupied by rock fragments. To do that, we first assessed the validity of different approaches for estimating the hydraulic properties of a stone-free and a stony (40% rock fragments) cylinder prepared with samples from the same silt loam soil. The functions relating to the soil hydraulic properties (θ-h, K-h-θ) were estimated by the Wind method and by inverse estimation, using data from an evaporation experiment where the soil water content and pressure head were measured at different soil depths over time. Results from the evaporation experiment were compared to those obtained by applying the equation that corrects fine earth properties by the rock fragments volume. Wind and the Inverse Estimation methods were successfully applied to estimate soil water content and hydraulic conductivity from the stony soil experiment, except for some uncertainties caused by the limited range of suction in which the experiment was conducted. The application of an equation for adjusting the soil water content at different pressure heads (allowing for defining the soil water retention curve, SWRC), and the unsaturated hydraulic conductivity (K) directly from the stone content was not satisfactory. K values obtained from the measured data were higher than those inferred by the correcting equation in the wet range, but decreased much faster with a decreasing pressure head. The use of this equation did therefore not take into account the effect that the creation of lacunar pores by the presence of rock fragments likely exerts on water flow processes. The use of such correction needs therefore to be revised and new approaches are needed for estimating the hydraulic conductivity in stony soils. In relation to SWRC, a new equation to calculate the water content of a stony soil accounting for the influence of possible lacunar pores is proposed.
Date
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2019
Subject
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Unsaturated hydraulic conductivity, inverse estimation, soil hydraulic properties, soil water retention curve, stony soils, wind method
Identifier
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10.3390/w11030440
Source
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Water
Publisher
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MDPI AG
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Hydraulic engineering, Water supply for domestic and industrial purposes
Relation
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<a href="http://www.mdpi.com/2073-4441/11/3/440" target="_blank" rel="noreferrer noopener">http://www.mdpi.com/2073-4441/11/3/440</a>
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https://www.socictopen.socict.org/files/original/bc7eb7cbdadbb618cbce81e4da66cabf.pdf
9560c071b38e2641872dc4049705f599
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Transgênicos: uma questão bioética
Creator
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Valdir Gonzalez Paixão Junior, Alfredo Pereira Junior
Description
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A discussão em torno dos transgênicos, agrobiodiversidade e etnodesenvolvimento, a partir de uma perspectiva bioética relacionada à soberania e segurança alimentar e nutricional, suscita questões éticas, sociais, culturais, econômicas e políticas importantes, onde interesses diversos, conflitantes e antagônicos, de cunho ideológico, entram em confronto sobre formas de agricultura relacionadas aos transgênicos e ao agronegócio por um lado e, por outro lado, aos agrossistemas sustentáveis e à agroecologia. Partindo-se do “princípio da precaução”, há que se reconsiderar a imediata inserção do uso de transgênicos na agricultura brasileira. Modelos alternativos e sistemas sustentáveis de agricultura devem ser buscados. Para além de uma discussão estritamente biotecnocientífica, questões relacionadas à diversidade social, cultural, ambiental, étnico-racial, dentre outras, relacionadas à agricultura familiar e camponesa, dos povos indígenas, quilombolas, e comunidades tradicionais, nas áreas rurais e urbanas, devem ser inseridas nesta discussão.
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
Subject
The topic of the resource
Bioética e Diversidade. Transgênicos. Soberania e Segurança Alimentar
Identifier
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10.20396/san.v23i0.8635626
Source
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Revista Segurança Alimentar e Nutricional
Publisher
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Universidade Estadual de Campinas
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Agriculture (General), Nutrition. Foods and food supply
Relation
A related resource
<a href="https://periodicos.sbu.unicamp.br/ojs/index.php/san/article/view/8635626" target="_blank" rel="noreferrer noopener">https://periodicos.sbu.unicamp.br/ojs/index.php/san/article/view/8635626</a>
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https://www.socictopen.socict.org/files/original/b2cab1ac794c10ea595fa57bc0c26f0f.pdf
00825f2f2ebe43b7b2ba9c797fff62c3
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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ANDRIOLI, Antônio Inácio (Org.) Tecnologia e agricultura familiar: uma relação de educação. Ijuí: Editora Unijuí, 2009, 192p. (Coleção Educação Popular e Movimentos Sociais)
Creator
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REA Editor
Date
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2010
Source
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Revista Espaço Acadêmico
Publisher
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Universidade Estadual de Maringá
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Social sciences (General)
Relation
A related resource
<a href="http://periodicos.uem.br/ojs/index.php/EspacoAcademico/article/view/11372" target="_blank" rel="noreferrer noopener">http://periodicos.uem.br/ojs/index.php/EspacoAcademico/article/view/11372</a>