285
10
20655
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http://socictopen.socict.org/files/original/f731f9ae759394fde8e2056ed5804188.pdf
058bbdb17feacceaa42e48584d91c87a
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
Biomarcadores histopatológicos na espécie Hoplias malabaricus (Pisces, Osteichthyes, Erythrinidae) em uma Unidade de Conservação de São Luís (MA)
Creator
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J.S. Castro, J.S. Silva, L.C. Freitas, R.N.F. Carvalho-Neta
Description
An account of the resource
Neste estudo objetivou-se validar dois órgãos (brânquia e fígado) de Hoplias malabaricus para análise de biomarcadores de contaminação aquática na Área de Proteção Ambiental (APA) do Maracanã em São Luís-MA. Exemplares de traíra foram capturados em uma lagoa de policultivo e no Rio Ambude, localizados na APA do Maracanã. A biometria foi realizada em laboratório. Brânquias e o fígado de cada espécime foram fixados em formol a 10% e mantidos em álcool a 70% até a execução da técnica histológica usual. Cortes de aproximadamente 5µm de espessura foram corados em hematoxilina e eosina (HE). Os resultados referentes à biometria dos peixes capturados durante o período de estiagem indicaram que o comprimento total e padrão dos exemplares foram maiores quando comparados com os indivíduos do período chuvoso. As alterações hepáticas identificadas foram: lipidose, necrose, infiltração leucocitária, vacuolização do citoplasma, hemossiderina e centro de melanomacrófagos. Constataram-se as seguintes lesões branquiais: fusão lamelar, aneurisma lamelar, deslocamento e necrose do epitélio, proliferações de células do muco e dilatação capilar. As respostas biológicas de H. malabaricus, registradas em nível branquial e hepático, podem ser caracterizadas como biomarcadores de contaminação aquática. As brânquias mostraram-se como os melhores órgãos para esse tipo de análise na espécie. Esses resultados indicam que os peixes da região apresentam a saúde comprometida por poluentes presentes nos ambientes analisados.
Date
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2014
Subject
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Biomarcadores, lesões histológicas, monitoramento ambiental
Identifier
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10.1590/1678-7414
Source
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Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Publisher
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Universidade Federal de Minas Gerais
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=S0102-09352014000601687&lng=en&tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000601687&lng=en&tlng=en</a>
-
http://socictopen.socict.org/files/original/67b4f941516e871a658eb84e19d9fe12.pdf
ce76e0a4f5b4048927d3ec0b747b36fa
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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Biomasa de raíces finas y fertilidad del suelo en bosques pluviales tropicales del pacífico colombiano
Creator
An entity primarily responsible for making the resource
Harley Quinto Mosquera, Flavio Moreno Hurtado, Haylin Yineth Caicedo Moreno, May Thelis Yineth Perez Luis Perez Luis
Description
An account of the resource
Las raíces finas juegan un papel importante en la ecología y dinámica de los bosques tropicales. La biomasa de raíces finas (BRF) está determinada principalmente por las características del suelo (disponibilidad de agua y nutrientes) y es mayor en suelos con menor fertilidad. Para evaluar esta hipótesis se establecieron cinco parcelas permanentes de una hectárea en las localidades de Opogodó (Condoto) y Pacurita (Quibdó), Chocó, Colombia, donde se midió la BRF a 0-10 y 10-20 cm de profundidad, y la fertilidad edáfica (pH, nutrientes y textura), los cuales se relacionaron con la BRF. Ambas localidades presentaron suelos pobres en nutrientes, con mayor contenido de arena, N total y materia orgánica (MO) en Opogodó. La BRF presentó poca relación con la textura y el contenido de nutrientes del suelo, pues solo las correlaciones de la BRF con el pH y el contenido de arcilla fueron significativas. En ambas zonas la BRF disminuyó con la profundidad; los valores encontrados entre 0 - 20 cm de profundidad fueron de 5.91 y 6.28 t ha-1 en Opogodó y Pacurita, respectivamente. El análisis a escala de la región tropical mostró una relación inversa entre el contenido del P disponible y la BRF de los bosques.
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
Subject
The topic of the resource
Balance del carbono, Chocó biogeográfico, Opogodó, Pacurita, fósforo, nutrición vegetal, suelos tropicales
Identifier
An unambiguous reference to the resource within a given context
10.14483/udistrital.jour.colomb.for.2016.1.a04
Source
A related resource from which the described resource is derived
Colombia Forestal
Publisher
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Universidad Distrital Francisco José de Caldas
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, Forestry
Relation
A related resource
<a href="http://revistas.udistrital.edu.co/ojs/index.php/colfor/article/view/7979" target="_blank" rel="noreferrer noopener">http://revistas.udistrital.edu.co/ojs/index.php/colfor/article/view/7979</a>
-
http://socictopen.socict.org/files/original/3b030b47e9c65cf1352d52477213c0b8.pdf
535d23244d5a0450242c8fdb8748c0c8
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
Biomasa microalgal con alto potencial para la producción de biocombustibles
Creator
An entity primarily responsible for making the resource
Manuel Jimenez Escobedo, Augusto Castillo Calderón
Description
An account of the resource
El estudio de los biocombustibles sigue en constante desarrollo, desde hace cinco décadas. Este artículo resume el análisis de diversas publicaciones científicas recientes, relacionadas con biocombustibles de tercera generación utilizando microalgas. Se presenta una visión general de biocombustibles y su clasificación, las bases teóricas de microalgas, técnicas para su cultivo, cosecha y pretratamiento de su biomasa. También se describen brevemente tecnologías prometedoras para obtener biocombustibles de gran demanda potencial mundial, considerando las características técnicas del proceso, en función de las especies de microalgas que tienen los más altos rendimientos y productividades para cada tipo de biocombustible: Biodiesel (extracción de lípidos, transesterificación y purificación), etanol (hidrólisis de azúcares, fermentación y purificación) y biogás (digestión anaerobia). La mayoría de los estudios están enfocados en la producción de lípidos, siendo Chlorella vulgaris, Nanochloropsis sp. y Botryococcus braunii (A) las microalgas más utilizadas para obtener biodiesel. Sin embargo, existen pocos estudios centrados en la producción de biomasa microalgal para producir bioetanol, así, las microalgas Porphyridium cruentum y Spirogira sp. podrían utilizarse para producir bioetanol, con la ventaja de no contener lignina. El biogás se produce por biodigestión anaeróbica de los residuos de biomasa microalgal en biorrefinerías, pero su producción comercial está muy limitada por los altos costos productivos y porque existen otras biomasas muy competitivas económicamente. La necesidad de producir biocombustibles utilizando biomasa microalgal, está alcanzando un mayor auge, siendo la propuesta trascendental, poner en marcha una biorrefinería, principalmente enfocada en la producción optima de biomasa microalgal como la clave principal de todo el proceso.
Date
A point or period of time associated with an event in the lifecycle of the resource
2021
Subject
The topic of the resource
Biocombustibles, bioetanol, biorrefinería, fotosíntesis, hidrólisis, microalgas, pretratamiento
Identifier
An unambiguous reference to the resource within a given context
10.17268/sci.agropecu.2021.030
Source
A related resource from which the described resource is derived
Scientia Agropecuaria
Publisher
An entity responsible for making the resource available
Universidad Nacional de Trujillo
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), Agriculture
Relation
A related resource
<a href="https://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/3550" target="_blank" rel="noreferrer noopener">https://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/3550</a>
-
http://socictopen.socict.org/files/original/16cdc4a25a27d93e501a3d4ea4401d4b.pdf
3ebe2de89cab212f2fb4d5309dcb51b5
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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Biomasa microbiana y respiración basal del suelo bajo sistemas agroforestales con cultivos de café
Creator
An entity primarily responsible for making the resource
Miriam Elena Cantero Guevara, Yuri Janio Pardo-Plaza, Jorge E. Paolini Gómez
Description
An account of the resource
La actividad microbiológica es esencial para mantener la calidad de los suelos y los sistemas agroforestales surgen como alternativa, para el manejo agroecológico y sostenible del suelo. Este estudio evaluó el efecto de las variedades de café (Caturra y Catuaí) y de las fluctuaciones por épocas climáticas, sobre algunas propiedades microbiológicas del suelo, como indicadores de calidad, en un sistema agroforestal. Las muestras de suelo, se tomaron en la capa superior, a 5cm de profundidad, durante un año en épocas seca y lluviosa. Las mayores emisiones de CO2, se observaron en los suelos con la variedad Catuaí, en época seca. Los niveles de carbono de la biomasa microbiana (Cmic) no mostraron diferencias entre las variables estudiadas. Los valores obtenidos para el cociente metabólico (qCO2) fueron mayores en los suelos con la variedad Catuaí, mientras que el cociente microbiano (qMic) presentó los mayores valores en los suelos con la variedad Caturra. El cociente de eficiencia metabólica (qCO2.Corg-1) no mostró diferencias entre los suelos estudiados; sin embargo, sus niveles fueron más altos para las muestras tomadas durante la época seca. La microbiota del suelo denotó sensibilidad a los cambios por época climática de muestreo y tipo de variedad cultivada, mientras que las constantes ecofisiológicas resultaron sensiblemente apropiadas, para evaluar la calidad del suelo.
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Subject
The topic of the resource
actividad microbiológica, agroecosistemas, café, constantes ecofisiológicas, suelo
Identifier
An unambiguous reference to the resource within a given context
10.31910/rudca.v22.n1.2019.1144
Source
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Revista U.D.C.A Actualidad & Divulgación Científica
Publisher
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Universidad de Ciencias Aplicadas y Ambientales
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), Biology (General), Medicine (General)
Relation
A related resource
<a href="https://revistas.udca.edu.co/index.php/ruadc/article/view/1144" target="_blank" rel="noreferrer noopener">https://revistas.udca.edu.co/index.php/ruadc/article/view/1144</a>
-
http://socictopen.socict.org/files/original/4e23038c171e5035dd91d9110bbc35d9.pdf
1c5dfa001f0c35654667ba19853edce0
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
Biomasa residual vegetal: tecnologías de transformación y estado actual
Creator
An entity primarily responsible for making the resource
Pedro Elías Patiño Martínez
Description
An account of the resource
La biomasa residual vegetal es una alternativa para la producción de energía a nivel mundial. La conversión de los residuos vegetales en alguna forma energética requiere la aplicación de tecnologías que estén acorde a lo expresado en el numeral IV, artículo 2 del Protocolo de Kyoto de la convención marco de las Naciones Unidas sobre cambio climático (1998) y normativas específicas de cada país o región. Las tecnologías que se le pueden aplicar a los residuos vegetales son bien conocidas a nivel mundial, dentro de estas se incluye: la combustión que permite generar un combustible denominado bio-oil, la gasificación que genera principalmente dióxido de carbono y amoniaco, la pirolisis que genera un gas combustible, y procesos biológicos (fermentación y digestión) que generan bioetanol y biogás. Actualmente en España, Estados Unidos, Brasil y Alemania, entre otros, se vienen desarrollando políticas con el fin de incentivar la implementación de plantas de biomasa. En Colombia la transformación de la biomasa residual vegetal hasta ahora se encuentra en fase de experimentación en laboratorios de Investigación científica principalmente en instituciones de educación superior.
Date
A point or period of time associated with an event in the lifecycle of the resource
2014
Subject
The topic of the resource
Protocolo de Kioto, biodiesel, biomasa, carbono, combustion, energia
Identifier
An unambiguous reference to the resource within a given context
10.15649/2346075X.255
Source
A related resource from which the described resource is derived
Innovaciencia
Publisher
An entity responsible for making the resource available
Universidad de Santander
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Science (General), Science
Relation
A related resource
<a href="https://revistas.udes.edu.co/innovaciencia/article/view/255" target="_blank" rel="noreferrer noopener">https://revistas.udes.edu.co/innovaciencia/article/view/255</a>
-
http://socictopen.socict.org/files/original/cf9b43782d86be1a018fa69f0f045c45.pdf
fb0fc4596dc666fad8ed2526d30375f6
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
Biomasa y calidad nutricional de cuatro variedades de alfalfa para introducir en Pamplona, Colombia
Creator
An entity primarily responsible for making the resource
Alfonso Eugenio Capacho-Mogollón, Dixon Fabián Flórez-Delgado, Johan Fernando Hoyos-Patiño
Description
An account of the resource
La investigación se desarrolló en el Centro de Investigación en Sanidad Vegetal y Bioinsumos de la Universidad de Pamplona (Norte de Santander), con el objetivo de evaluar la productividad y la calidad nutricional de cuatro variedades de alfalfa (Medicago sativa L.): Cuf 101, Moapa 69, SW-8210 y SW-8718. Se adelantó un experimento con cuatro tratamientos aleatorizados con tres repeticiones, para un total de 12 unidades experimentales de 9 m2 cada una. La aplicación de correctivos y enmiendas se realizó una semana antes de la siembra, con base en el análisis de suelos. Al día 70 de la siembra se realizó un corte de emparejamiento para homogeneizar cada parcela. Las mediciones de producción de biomasa verde y calidad nutricional se determinaron en el estadio de botón floral, a los 210 días de la siembra. Se aplicaron pruebas de análisis de varianza ANOVA, no encontrándose diferencias significativas entre las variedades de alfalfa para las condiciones ambientales del municipio de Pamplona, por lo que todas pueden introducirse en este agroecosistema.
Date
A point or period of time associated with an event in the lifecycle of the resource
2018
Subject
The topic of the resource
Medicago sativa, digestibilidad in vitro, forraje, leguminosa
Identifier
An unambiguous reference to the resource within a given context
10.19053/01228420.v15.n1.2018.7757
Source
A related resource from which the described resource is derived
Ciencia y Agricultura
Publisher
An entity responsible for making the resource available
Universidad Pedagógica y Tecnológica 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
Agriculture (General), Agriculture
Relation
A related resource
<a href="http://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/7757" target="_blank" rel="noreferrer noopener">http://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/7757</a>
-
http://socictopen.socict.org/files/original/20b91c7079e1f03059817d15cb74edaf.pdf
19069c2caed0d080bd6ae64f9bbded44
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
Biomasa y composición nutricional de la asociación Cenchrus ciliaris - Gliricidia sepium al establecimiento
Creator
An entity primarily responsible for making the resource
J. L. Valle, J. M. Palma, G. L. Sangines
Description
An account of the resource
Se asoció Cenchrus ciliaris (Cc) y Gliricidia sepium (Gs) para evaluar la producción de biomasa y la composición química de los forrajes en la fase de establecimiento, en el estado de Morelos, México, en condiciones de trópico seco. Se empleó un análisis de varianza con diseño en bloques al azar, en donde T1 fue pasto solo, T2 Cc más Gs con 5,000 plantas ha-1 y el T3 Cs más Gs con 14,285 plantas ha-1. Se midió la producción de forraje individual y asociado con materia seca (t MS/Ha), la altura (A) en cm, la proteína cruda (PC%), las fracciones de fibra (FDN% y FDA%) y la digestibilidad in vitro de la materia seca (DIVMS%). El T3 tuvo una mejor producción de biomasa (P
Date
A point or period of time associated with an event in the lifecycle of the resource
2004
Subject
The topic of the resource
leguminosa, policultivo, sistema silvopastoril
Source
A related resource from which the described resource is derived
Avances en Investigación Agropecuaria
Publisher
An entity responsible for making the resource available
Universidad de Colima
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), Animal culture
Relation
A related resource
<a href="http://www.redalyc.org/articulo.oa?id=83780208" target="_blank" rel="noreferrer noopener">http://www.redalyc.org/articulo.oa?id=83780208</a>
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http://socictopen.socict.org/files/original/26cd6d17aad95f3d05dde8a8b2d84a10.pdf
cbc0bf1fcddffbaaa7e347dcc80d98cd
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
Biomass production and nutritional properties of promising genotypes of <i>Tithonia diversifolia</i> (Hemsl.) A. Gray under different environments
Creator
An entity primarily responsible for making the resource
Julián Esteban Rivera, Tomás E. Ruíz, Julián Chará, Juan Florencio Gómez-Leyva, Rolando Barahona
Description
An account of the resource
Tithonia diversifolia is a shrub with excellent forage characteristics that has shown a wide genetic and phenotypic diversity. The objective of this study was to determine the biomass production and nutritional quality of seven genotypes of T. diversifolia with outstanding characteristics for ruminant nutrition, to analyze the Genotype x Environment (GxE) interaction of biomass production and to compare the performance of these genotypes with grasses offered normally in tropical conditions. For the GxE interaction the AMMI and SREG models were used, and evaluations were made in three environments. In the GxE analysis, the interaction was significant and effects of the environment on biomass productivity were observed with differences between genotypes (p
Date
A point or period of time associated with an event in the lifecycle of the resource
2021
Identifier
An unambiguous reference to the resource within a given context
10.17138/tgft(9)280-291
Source
A related resource from which the described resource is derived
Tropical Grasslands-Forrajes Tropicales
Publisher
An entity responsible for making the resource available
Centro Internacional de Agricultura Tropical
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
Relation
A related resource
<a href="https://www.tropicalgrasslands.info/index.php/tgft/article/view/941" target="_blank" rel="noreferrer noopener">https://www.tropicalgrasslands.info/index.php/tgft/article/view/941</a>
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http://socictopen.socict.org/files/original/2fed5a187fda0f379a601391608632d9.pdf
4f5953e6b7dc366524189fa6327bcd96
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
Biomassa aérea e produção primária do estrato herbáceo em campo de Elyonurus muticus submetido à queima anual, no Pantanal
Creator
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Evaldo Luis Cardoso, SANDRA MARA ARAÚJO CRISPIM, CRISTINA APARECIDA G. RODRIGUES, Waldomiro Barioni Júnior
Description
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O trabalho foi conduzido no Pantanal, em fitofisionomia de campo a savana, regionalmente denominada de caronal, pela dominância de Elyonurus muticus. Os objetivos foram avaliar o efeito da queima anual de caronal sobre a biomassa aérea acumulada, produção primária líquida da parte aérea (PPLA) do estrato herbáceo e cobertura do solo. Foram coletados dados mensais de biomassa aérea acumulada durante dois anos, em uma área com queima em set./95 e ago./96, e outra sem queima. A PPLA foi estimada através das diferenças de biomassa aérea viva coletada mensalmente. A queima reduziu a biomassa aérea acumulada em aproximadamente 36% no primeiro ano e 50% no segundo. Houve uma tendência de redução de biomassa acumulada com a repetição da queima. A PPLA do estrato herbáceo nas áreas sem queima e com queima foi 3.850 kg/ha e 4.980 kg/ha no primeiro ano, e 5.090 kg/ha e 2.880 kg/ha no segundo, respectivamente. A cobertura do solo 30 dias após a queima foi de aproximadamente 30%, e somente quatro a seis meses depois foi restabelecido o porcentual da área sem queima
Date
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2000
Subject
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Axonopus purpusii, Cobertura do solo, Mesosetum chaseae, ecología, pastagens nativas
Identifier
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10.1590/S0100-204X2000000800001
Source
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Pesquisa Agropecuária Brasileira
Publisher
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Embrapa Informação Tecnológica
Coverage
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Agriculture (General)
Relation
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<a href="http://www.scielo.br/pdf/pab/v35n8/v35n8a01.pdf" target="_blank" rel="noreferrer noopener">http://www.scielo.br/pdf/pab/v35n8/v35n8a01.pdf</a>
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http://socictopen.socict.org/files/original/c983b3cc7efb6d73120570b8dde6dfd4.pdf
e58949964d1474410df8e72960644059
Dublin Core
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Title
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Agricultura sostenible
Description
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Dominio científico: Agricultura sostenible
Text
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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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Biomassa e extração de nutrientes da cebola sob adubação orgânica e biofertilizantes
Creator
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Claudinei Kurtz, Francisco OG de Menezes Júnior, Paulo Antônio de S Gonçalves
Description
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A produção de biomassa e extração de nutrientes na cultura da cebola (Allium cepa) é influenciada pela nutrição das plantas. O experimento teve por objetivo avaliar a produção de biomassa e extração de nutrientes da cebola sob adubação convencional e orgânica com o uso de biofertilizantes. Com este propósito foi conduzido um experimento de campo, na safra 2010, num Cambissolo Háplico, em Ituporanga-SC. Aplicaram-se quatro tratamentos: convencional (T1) (adubação no plantio e de cobertura e tratos fitossanitários recomendados oficialmente para a cultura); e três outros com adubação de plantio com adubos permitidos pelo MAPA para sistemas orgânicos de produção, diferenciados pela aplicação em cobertura via solo com biofertilizante à base de esterco de peru [bioperu (T2)] ou esterco bovino [biobovino (T3)] ou biofertilizante à base de esterco bovino pulverizado a 3% [biobovino pulverizado (T4)]. Utilizou-se a cultivar Epagri 352-Bola Precoce. Semeadura, transplante e colheita foram realizados em 03/05, 12/07 e 06/12/2010, respectivamente. Foram avaliados durante o ciclo, em dias após o transplante (DAT), a extração total de nutrientes do sistema aéreo (aos 48, 68 e 108 DAT) e bulbos (148 DAT), a análise do solo (aos 48, 68, 108 e 148 DAT). O crescimento (biomassa fresca) e o desenvolvimento (número de folhas) das plantas foram avaliados aos 30, 48, 68 e 108 DAT. A adição de nutrientes via biofertilizantes no solo e foliar não é capaz de suprir a necessidade de nutrientes, sendo responsável por gerar desequilíbrios que diminuem o crescimento e desenvolvimento da cultura.
Date
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2013
Subject
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Allium cepa, Crescimento e desenvolvimento, acúmulo de nutrientes
Identifier
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10.1590/S0102-05362013000400022
Source
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Horticultura Brasileira
Publisher
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Associação Brasileira de Olericultura
Coverage
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Plant culture
Relation
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<a href="http://www.scielo.br/pdf/hb/v31n4/22.pdf" target="_blank" rel="noreferrer noopener">http://www.scielo.br/pdf/hb/v31n4/22.pdf</a>