770
10
20655
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https://socictopen.socict.org/files/original/c14482032bf222f3f8d295306a77ffc7.pdf
9f4a3d4775cea9556117fbea7cab6bcc
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
Adaptación humana y ocupación de los ambientes amazónicos por poblaciones indígenas precolombinas
Creator
An entity primarily responsible for making the resource
Luís Enrique Gainette Prates
Description
An account of the resource
El artículo revisa las teorías acerca de la adaptación humana y la ocupación de los distintos ambientes amazónicos por parte de poblaciones precolombinas. Las líneas ecológicas en la antropología proponen que el ambiente físico tiene un importante papel en las actividades cotidianas de las poblaciones e interactúa con todos los componentes del sistema cultural. Sin embargo, aportes de la ecología histórica y de la etnohistoria han revelado nuevos e importantes datos acerca del tema, por ejemplo, que las culturas indígenas que sobrevivieron al proceso de ocupación de la Amazonía se han visto obligadas a adaptarse tanto al medio físico como a las fuerzas políticas y económicas externas que operan en la región. Por consiguiente, este grado de adaptación depende también de las fuerzas históricas, políticas y socioeconómicas presentes en este contexto.
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
Subject
The topic of the resource
Amazônia, Ecologia Histórica, Etno-história, determinismo ecológico, indígenas precolombinos
Identifier
An unambiguous reference to the resource within a given context
10.15446/rcdg.v25n1.52596
Source
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Cuadernos de Geografía: Revista Colombiana de Geografía
Publisher
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Universidad Nacional de Colombia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Geography (General)
Relation
A related resource
<a href="https://revistas.unal.edu.co/index.php/rcg/article/view/52596" target="_blank" rel="noreferrer noopener">https://revistas.unal.edu.co/index.php/rcg/article/view/52596</a>
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https://socictopen.socict.org/files/original/6022370b7cb2a43ef5e41dea4a7d717e.pdf
1277bc829510a2f3dfacf600b8e69d92
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
Application price of the field: proposal of a ICT solution for small farmer
Creator
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Karen Cristina de Andrade Pereira, Vitória Aparecida Cardoso
Description
An account of the resource
Family farming performs multiple functions for society, as environmental preservation and food security, because it is responsible for most of the domestic food production of several products. However, despite its importance, this sector faces many obstacles, and one of them is the lack of access to information, which is of great importance because it helps family farmers in decision making, making them more competitive in the market. Therefore, the objective of this paper is to present a mobile application proposal that assists the small producer in decision making. This research is exploratory about the goal, with a quantitative and qualitative approach. The qualitative approach is justified by the identification of the problems faced by family farming through bibliographic research, and the quantitative approach is justified by the use of secondary data for the mobile application proposal. In order to facilitate the access to information by the small farmer, it was proposed the application Price of the Field, that would present the average price paid for a particular product and its estimated cost, and the margin generated by the difference between the two values. Through this application, the farmer will have access to information that will help him decide what to produce, through the estimated cost of production, and he will be able to establish a more fair price for his products, based on average prices.
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
Subject
The topic of the resource
Agricultura Familiar, Aplicativo, Informação, Preço do Campo
Source
A related resource from which the described resource is derived
Revista Eletrônica Competências Digitais para Agricultura Familiar
Publisher
An entity responsible for making the resource available
Universidade Estadual Paulista Júlio de Mesquita Filho
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://codaf.tupa.unesp.br:8082/index.php/recodaf/article/view/36" target="_blank" rel="noreferrer noopener">http://codaf.tupa.unesp.br:8082/index.php/recodaf/article/view/36</a>
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https://socictopen.socict.org/files/original/d27ff283233e618bf2ce81f884fdf5d6.pdf
a00b2d6a39a9c414844fb86c0804a703
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
Potencial y Algunos de los Mecanismos de Acción de los Hongos Entomopatógenos para el Control de Insectos Plaga Potencial y Algunos de los Mecanismos de Acción de los Hongos Entomopatógenos para el Control de Insectos Plaga
Creator
An entity primarily responsible for making the resource
María Teresa Carrillo-Rayas, Alejandro Blanco-Labra
Description
An account of the resource
This paper describes the use of an ecological alternative to control insect pests. One viable strategy, developed to answer the growing concern about the negative effects that chemical pesticides have on human health and/or the environment, consists in exploiting the use of natural insect pathogens. Among several options, the use of entomopathogenic fungi (EMF) as possible microbial control agents has been considered worldwide. EMF are widely recognized for their potential use as biological control agents. Due to their distinctive mode of action, EMF could have a unique and/or complementary role in insect control. Unlike bacterial, viral or protozoan entomopathogens, EMF do not require to be ingested by their host; instead, germinating fungal spores can penetrate directly through the insect’s cuticle. This mode of infection is possible thanks to the synergistic effect of cuticle-degrading enzymes, plus the mechanic pressure produced upon their contact. The enzymes participating in this process are a determinant factor for an effective infection. El presente artículo enfatiza el uso de una alternativa ecológica para el control efi caz de plagas. Considerando que existe una preocupación general sobre los efectos negativos de los pesticidas químicos en la salud pública y/o en el medio ambiente, una alternativa consiste en el aprovechamiento de patógenos naturales de insectos. El uso de hongos entomopatógenos (HEP) como agentes de control biológico ha sido considerado a nivel mundial; estos hongos son ampliamente reconocidos por su potencial como agentes de control biológico. Debido a su modo de infección distintivo, los hongos pueden tener un papel único o complementario como agentes de control de insectos plaga. A diferencia de otros agentes entomopatógenos, como bacterias, virus o protozoarios, los HEP no requieren ser ingeridos por su hospedero para causar la infección; en su lugar, las esporas pueden penetrar directamente a través de la cutícula. Este modo de infección es posible gracias a la acción coordinada de enzimas hidrolíticas, además de la presión mecánica ejercida en el punto de contacto. Las enzimas participantes son factores determinantes en el éxito de la infección.
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
Subject
The topic of the resource
Bioinsecticidas, Entomopatógenos, Hidrolasas de Hongos, Proteasas de Hongos, biocontrol
Source
A related resource from which the described resource is derived
Acta Universitaria
Publisher
An entity responsible for making the resource available
Universidad de Guanajuato
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, Science (General)
Relation
A related resource
<a href="http://www.actauniversitaria.ugto.mx/index.php/acta/article/view/102" target="_blank" rel="noreferrer noopener">http://www.actauniversitaria.ugto.mx/index.php/acta/article/view/102</a>
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https://socictopen.socict.org/files/original/c44ecbc5c07d30791871269db64d14a9.pdf
b79dd54eeeda91d712be7f116f7d1803
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
Producción y formulación de prototipos de un biofertilizante a partir de bacterias nativas asociadas al cultivo de arroz (Oryza sativa)
Creator
An entity primarily responsible for making the resource
Johanna Rojas Sierra, Nubia Moreno-Sarmiento
Description
An account of the resource
Los biofertilizantes son productos con base en microorganismos que están involucrados en los procesos nutritivos de las plantas. Además de los microorganismos, es necesario mejorar las condiciones de formulación de los productos para mantener la viabilidad y estabilidad en almacenamiento y campo. El objetivo de este trabajo fue evaluar formulaciones, las cuales se realizaron mezclando el ingrediente activo (bacteria fijadora de nitrógeno) en diferentes relaciones con sustancias húmicas, Polietilenglicol, Carbopol® y quelatos. Los prototipos que mantuvieron la viabilidad durante un periodo de aproximadamente tres meses se evaluaron en cultivos de arroz. Los formulados se evaluaron teniendo en cuenta la dosis aplicada (1 y 2 L/ha); el resultado de uno de los prototipos (M= 8500 kg/ha) mostró un efecto benéfico sobre la producción superando a los testigos (7625 kg/ha). Los resultados de este trabajo, además de contribuir con el aumento de la estabilidad en almacenamiento de algunos prototipos, permitieron mostrar buenos resultados en campo (producción), ratificando la importancia que tienen estos microorganismos en los agroecosistemas. Palabras clave: biofertilizantes; formulación; nutrición vegetal; prototipos; sustancias húmicas; Biofertiliser; formulation; humic substance; plant nutrition; prototype.
Date
A point or period of time associated with an event in the lifecycle of the resource
2008
Subject
The topic of the resource
Biofertiliser, Formulation, Prototype, biofertilizantes, formulación, humic substance, nutrición vegetal, plant nutrition, prototipos, sustancias húmicas
Source
A related resource from which the described resource is derived
Revista Colombiana de Biotecnología
Publisher
An entity responsible for making the resource available
Universidad Nacional de Colombia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Biotechnology
Relation
A related resource
<a href="https://revistas.unal.edu.co/index.php/biotecnologia/article/view/9151" target="_blank" rel="noreferrer noopener">https://revistas.unal.edu.co/index.php/biotecnologia/article/view/9151</a>
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https://socictopen.socict.org/files/original/77355f0016a7ba523f9f47c09dcc7cc0.pdf
f8e2e64504d8fef3e0ed18e4f7fd64f9
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
Emergência e crescimento de alface (Lactuca sativa L.) submetida a substratos orgânicos
Creator
An entity primarily responsible for making the resource
Franciele Mara Lucca Zanardo Bohm, Adriana Strieder Philippsen, Débora Larissa de Oliveira, Lucas Henrique Teixeira Garcete, Paula Bonomo Bertola, Paulo Alfredo Feitoza Bohm
Description
An account of the resource
A agricultura orgânica se destaca como modo de produção que consiste em um sistema sustentável. Um dos desafios desse método de cultivo é a produção de alimentos com qualidade em quantidades suficientes sem comprometer o meio ambiente. Objetivou-se analisar o efeito de substratos orgânicos na germinação e crescimento inicial de alface. O experimento foi conduzido em delineamento inteiramente casualizado com quatro tratamentos (substratos) e duas repetições. Foram testados os substratos: composto de Sibipiruna, substrato comercial, composto de Sibipiruna com chorume e substrato comercial com chorume. O chorume foi obtido exclusivamente da decomposição de vegetais. Foi avaliado o efeito dos substratos pelo percentual de germinação, massa fresca, massa seca e comprimento da radícula. Pôde-se considerar que houve diferença significativa entre os tratamentos. As sementes, quando germinadas em substrato de Sibipiruna com chorume, apresentaram maior massa seca e comprimento de radícula. Com relação à massa fresca, os valores obtidos foram maiores quando o chorume foi adicionado a ambos os substratos. O chorume obtido da decomposição de vegetais aumentou a germinação e o crescimento inicial das plântulas.Emergence and growth of lettuce (Lactuca sativa L.) submitted to organic substratesAbstract: Organic agriculture stands out as a mode of production consisting of a sustainable system. One of the challenges of this method of cultivation is the production of sufficient quality food in sufficient quantities without compromising the environment. The objective of this study was to analyze the effect of organic substrates on germination and initial lettuce growth. The experiment was conducted in a completely randomized design with four treatments (substrates) and two replicates. The substrates were tested: Sibipiruna compound, commercial substrate, Sibipiruna compound with slurry and commercial slurry substrate. The manure was obtained exclusively from the decomposition of vegetables. The effect of the substrates was evaluated by percentage of germination, fresh mass, dry mass and radicular length. It was possible to consider that there was a significant difference between treatments. The seeds, when germinated in substrate of Sibipiruna with slurry, presented higher dry mass and radicle length. Regarding the fresh mass, the values obtained were higher when the slurry was added to both substrates. The slurry obtained from the decomposition of plants increased the germination and the initial growth of the seedlings.
Date
A point or period of time associated with an event in the lifecycle of the resource
2017
Subject
The topic of the resource
Compostagem, chorume, cultivo orgânico, sustentabilidade
Identifier
An unambiguous reference to the resource within a given context
10.18378/rvads.v12i2.4859
Source
A related resource from which the described resource is derived
Revista Verde de Agroecologia e Desenvolvimento Sustentável
Publisher
An entity responsible for making the resource available
Grupo Verde de Agroecologia e Abelhas (GVAA)
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), Geography. Anthropology. Recreation, Environmental sciences
Relation
A related resource
<a href="http://www.gvaa.com.br/revista/index.php/RVADS/article/view/4859" target="_blank" rel="noreferrer noopener">http://www.gvaa.com.br/revista/index.php/RVADS/article/view/4859</a>
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https://socictopen.socict.org/files/original/a824d7c08ce41644537697145abbfc3f.pdf
161c72c9f488339aedc35dad09b38d71
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
El potencial de la agricultura familiar y los espacios protegidos: lineamientos para el diseño de políticas públicas
Creator
An entity primarily responsible for making the resource
Raúl Paz, Sofía Bruno
Description
An account of the resource
Hay una cantidad de explotaciones familiares que aún perduran y se resisten a desaparecer, desplegando variadas y novedosas estrategias productivas, sociales y culturales. Precisamente, el objetivo de este artículo es presentar dos casos de explotaciones familiares en contextos muy diferentes: una ubicada en el Dpto. Banda de la provincia de Santiago del Estero y la otra en el Partido de Saladillo, provincia de Buenos Aires, donde la diversidad y regularidad de las estrategias adoptadas les han permitido persistir y desarrollar estrategias alternativas al modelo vigente. El despliegue del potencial productivo, ecológico y social de la agricultura familiar requiere de la construcción de espacios protegidos. Así, los espacios protegidos se presentan como un argumento sobre la potencialidad de la agricultura familiar y su capacidad de generar un desarrollo rural alternativo, en el que la pequeña producción tenga un rol activo en la construcción de este nuevo diseño. No obstante, en la actualidad, los espacios protegidos no son más que una hipótesis y una declaración de las posibilidades sobre la forma en la que el mundo agrario podría estructurarse con base en la pequeña producción. La sistematización de los casos comienza a mostrar caminos y pautas posibles de aprendizajes para esa construcción
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
Subject
The topic of the resource
Agricultura Familiar, Espacios Protegidos, No mercantilización
Source
A related resource from which the described resource is derived
Mundo Agrario
Publisher
An entity responsible for making the resource available
Universidad Nacional de La Plata
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 history and conditions. Social problems. Social reform, Sociology (General)
Relation
A related resource
<a href="http://www.mundoagrario.unlp.edu.ar/article/view/2270" target="_blank" rel="noreferrer noopener">http://www.mundoagrario.unlp.edu.ar/article/view/2270</a>
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https://socictopen.socict.org/files/original/03ca21edc1950b31a60378f8cda99276.pdf
f40824efef4095ca1f1093eb9f3b9729
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
Efecto de las PGPB sobre el crecimiento Pennisetum clandestinum bajo condiciones de estrés salino
Creator
An entity primarily responsible for making the resource
Diana Beatriz Sánchez López, Jazmín Vanessa Pérez Pazos, Hilda Adriana David Hinestroza
Description
An account of the resource
This research aims the isolation and characterization of bacteria with potential to promote the growth of grass Pennisetum clandestinum in simulated saline soils. 92 Gram positive bacterias were isolated from Rhizosphere soil samples of P. clandestinum. Ten isolated bacteria grew on nutrient agar supplemented with NaCl (2.578 M). Isolates were evaluated under greenhouse conditions; the strains identified as KISA 34 and KISA 71 were selected as the best based on the statistical test of Dunnet (p ≤ 0.05) and were identified Bacillus amyloliquefaciens KISA 34 and Bacillus subtilis KISA 71. These strains have the ability to produce ammonium, exopolysaccharides and cellulose, both in absence and presence of NaCl. The strains produced indoles and phosphorus solubilization. The evaluation of strains in greenhouse showed that the T6 - KISA 34 + KISA 71+ 25 % (phosphate rock RF) significantly increased biomass and plant development (p≤ 0.05) compared with T2 - full fertilization . The results of this research showed that isolates have the ability to grow in saline soils retaining its characteristics as promoting plant growth with positive effects on P. clandestinum.
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
Subject
The topic of the resource
Bacillus amyloliquefaciens, Bacillus subtilis, Bio-Fertilizer, Salinity, biofertilizantes, phosphorus solubilization, salinidad, solubilización de fósforo
Source
A related resource from which the described resource is derived
Revista Colombiana de Biotecnología
Publisher
An entity responsible for making the resource available
Universidad Nacional de Colombia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Biotechnology
Relation
A related resource
<a href="http://www.revistas.unal.edu.co/index.php/biotecnologia/article/view/50413" target="_blank" rel="noreferrer noopener">http://www.revistas.unal.edu.co/index.php/biotecnologia/article/view/50413</a>
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https://socictopen.socict.org/files/original/15c1f5d05ee6f71880d5a543dcee07db.pdf
ea8d41826f0f33eb3dc7da9e494c496a
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
O pronaf no sul do Brasil no período 1999-2010
Creator
An entity primarily responsible for making the resource
Ricardo Kinzo Ebina, Angélica Massuquetti
Description
An account of the resource
O objetivo do artigo é analisar a evolução do PRONAF na região Sul do Brasil e, em especial, no Rio Grande do Sul, no período 1999-2010. A metodologia empregada foi a coleta de informações em bases de dados, como MDA, MAPA, BB e IBGE. O estudo identificou que, no início do período, os estados da região Sul do país receberam mais da metade dos recursos do PRONAF. Ao longo do período investigado, as demais regiões, em especial o Nordeste, passaram a receber maior volume de recursos, mas o Sul manteve sua posição de destaque. Nesta região, o Rio Grande do Sul ocupa o primeiro lugar em termos de número de contratos e de valores disponibilizados, empregando os recursos no custeio das lavouras, principalmente, nas culturas de milho e de soja.Abstract The aim of this paper is to analyze the evolution of PRONAF in the south region of Brazil, especially in Rio Grande do Sul, in the period 1999-2010. The methodology employed was based on information gathering on databases such as MDA, MAPA, BB and IBGE. The study identified that in the beginning of the period the states of the south region of the country received more than half of the resources from PRONAF. Throughout the period examined, the other regions, especially the northeast, increased their share of the total resources, but the south region kept its position as the main receiver. In this region, Rio Grande do Sul occupies the first place in terms of number of contracts and values received, employing the resources to plantation of, mainly, corn and soya beans.
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
Subject
The topic of the resource
Agricultura Familiar, Pronaf, crédito rural, familiar agriculture, rural credit
Source
A related resource from which the described resource is derived
Estudos do CEPE
Publisher
An entity responsible for making the resource available
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, Economics as a science, Economic theory. Demography
Relation
A related resource
<a href="http://online.unisc.br/seer/index.php/cepe/article/viewFile/2280/2148" target="_blank" rel="noreferrer noopener">http://online.unisc.br/seer/index.php/cepe/article/viewFile/2280/2148</a>
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https://socictopen.socict.org/files/original/277c16bba80979ca5f6651985323ff32.pdf
822e87dd6645918ff61fcc84d6c60bd3
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
Producción de un biofertilizante a partir de un aislamiento de Azotobacter nigricans obtenido en un cultivo de Stevia rebaudiana Bert
Creator
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Daniel Borda-Molina, Juan Manuel Pardo-García, María Mercedes Martínez-Salgado, José Salvador Montaña-Lara
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Bio-fertilizer production from an isolate of Azotobacter nigricans obtained from a plantation of Stevia rebaudiana Bert. Objective.To isolate nitrogen fixing bacteria to be used in a fertilization regime of an organic agriculture program. Materials and methods. Theisolation of nitrogen fixing bacteria was done in an Ashby-benzoate medium from soil of a Stevia rebaudiana plantation. Isolates identifiedas Azotobacter nigricans were evaluated by their growth kinetics and the strain with the fastest growth was used for the production of abiofertilizer by discontinuous fermentation. The preliminary evaluation of the biofertilizer was done by its inoculation into t hree ridges ofa plantation of S. rebaudiana and yield determination was based upon biomass production and glycoside concentration. Results. Twoisolates (A5 and A6) were identified as A. nigricans based on their phenotypic and genotypic characterization. Isolate A5 was selected forpreparing the biofertilizer because it showed a better stability, pigmentation, a faster growth rate (0.1405 h-1 exponential phase of 18 hours)and an average IAA production of 38.4 mg/ml after 150 hours. The bio-fertilizer was obtained in milk medium with a cell concentration of4x1012 CFU/ml. Conclusions. The preliminary field evaluation showed a positive correlation between the increase of the glycosideconcentration in the leaves of S. rebaudiana and a higher production of biomass in response to the bio-fertilizer application.
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2009
Subject
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Azotobacter nigricans, Glycosides, IAA, Stevia rebaudiana Bert
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Universitas Scientiarum
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Pontificia Universidad Javeriana
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Science (General)
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<a href="http://revistas.javeriana.edu.co/index.php/scientarium/article/view/1401/863" target="_blank" rel="noreferrer noopener">http://revistas.javeriana.edu.co/index.php/scientarium/article/view/1401/863</a>
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https://socictopen.socict.org/files/original/87a29b2e30a8ecad57fc7b2d654c92a2.pdf
3c9b43f40f1445f5a06e613b9c81aafd
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Agricultura sostenible
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Dominio científico: Agricultura sostenible
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Compatibilidad in vitro de Isaria fumosorosea (Wize) Brown y Smith (Hypocreales: Clavicipitaceae) con plaguicidas comerciales
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Érika Paola Grijalba Bernal, Martha Isabel Gómez Álvarez, María Victoria Zuluaga Mogollón
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Los agricultores colombianos utilizan productos químicos con categorías toxicológicas I, II y III para el control de insectos como la mosca blanca Bemisia tabaci (Gennadius, 1889) (Hemiptera: Aleyrodidae); pero su uso indiscriminado genera un riesgo para la salud y el medio ambiente. El control microbiológico con hongos entomopatógenos surge como alternativa de control ambientalmente sostenible. No obstante, su empleo exitoso dentro de una estrategia de manejo integrado de plagas (MIP) depende, en gran parte, del efecto de los productos químicos sobre el bioplaguicida. El objetivo del presente trabajo fue determinar la compatibilidad in vitro de un bioplaguicida con base en el hongo Isaria fumosorosea formulado como polvo mojable con cuatro fungicidas y cinco insecticidas comerciales. Para esto, se evaluó el efecto de tres concentraciones de los productos químicos: FR = dosis recomendada en campo, 0.5 x FR y 0.25 x FR sobre la germinación de los conidios y el número de unidades formadoras de colonia UFC/g de I. fumosorosea. Los cuatro fungicidas (Benlate, Carboxin Captan, Metalaxil-Mancozeb y Mancozeb) en las tres dosis evaluadas fueron incompatibles con el bioplaguicida, mientras que el insecticida Thiametoxam fue compatible cuando se utilizó la dosis de 0.25 x FR.
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2014
Subject
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Bioplaguicida, Isaria fumosorosea, hongos entomopatógenos, mosca blanca, sinergismo de los plaguicidas
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10.15446/acag.v63n1.37895
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Acta Agronómica
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Universidad Nacional de Colombia
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Agriculture
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<a href="http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122014000100007&lng=en&tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122014000100007&lng=en&tlng=en</a>