190
10
20655
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https://www.socictopen.socict.org/files/original/0268754d96ce4c7b51706a65f7084a4b.pdf
af1128c18b3e041e6116a92bc4b2a658
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
Qualidade de laranjas 'Valência' produzidas sob sistemas de cultivo orgânico e convencional
Creator
An entity primarily responsible for making the resource
Sergio Francisco Schwarz, Renar João Bender, Henrique Belmonte Petry, Otto Carlos koller
Description
An account of the resource
O objetivo deste trabalho foi avaliar características qualitativas de laranjas 'Valência' (Citrus sinensis (L.) Osb.) produzidas em dois pomares experimentais: um cultivado sob sistema orgânico e outro sob sistema convencional. Os pomares foram instalados no município de Montenegro - RS, em julho de 2001, em espaçamento de 2,5 m x 5,0 m, cada um possuindo uma área de 0,25 ha. A qualidade dos frutos foi determinada de 2005 a 2010 a partir de cinco amostras por tratamento em cada ano. Amostras de frutos colhidos aleatoriamente de cinco plantas foram analisadas para massa média dos frutos (MMF), o teor de suco (Ts), o teor de sólidos solúveis totais (SST), a acidez total titulável (ATT) e a relação SST/ATT. No ano de 2010, também foram determinados o teor de ácido ascórbico (vitamina C) no suco e a coloração da casca. No sistema de produção convencional, o manejo é realizado através da utilização de adubos minerais, calcário dolomítico, herbicidas, fungicidas e inseticidas. Já no sistema orgânico de produção, foi aplicado composto orgânico, biofertilizante líquido, caldas bordalesa e sulfocálcica, e a cobertura do solo foi mantida com vegetação espontânea, que recebeu, no inverno, aveia e ervilhaca e, no verão, feijão-miúdo. Não foram identificadas diferenças nas características qualitativas entre os frutos de ambos os pomares, exceto para o teor de SST, que foi maior, em média, nos frutos do pomar convencional. Os frutos do sistema convencional também apresentaram maior teor de vitamina C e coloração da casca mais intensa na comparação dos frutos provenientes do sistema orgânico.
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
Subject
The topic of the resource
Citrus sinensis, cor da casca, sólidos solúveis totais, ÁCIDO ASCÓRBICO
Identifier
An unambiguous reference to the resource within a given context
10.1590/S0100-29452012000100023
Source
A related resource from which the described resource is derived
Revista Brasileira de Fruticultura
Publisher
An entity responsible for making the resource available
Sociedade Brasileira de Fruticultura
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Plant culture
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000100023&lng=en&tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000100023&lng=en&tlng=en</a>
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https://www.socictopen.socict.org/files/original/cd6d8f93c8ef2d70e74d30edd0f34b09.pdf
00077d2eb2d623e7df1f26a131254985
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
The use of sunn hemp as green manure intercropped with taro Utilização de crotalária como adubo-verde em consórcio com taro
Creator
An entity primarily responsible for making the resource
Dejair Lopes de Almeida, Fábio Luiz de Oliveira, Segundo Urquiaga, José Guilherme M Guerra, Raul de LD Ribeiro, Edmilson Evangelista da Silva, José Antônio A Espindola
Description
An account of the resource
An experiment was carried out in Magé, Rio de Janeiro State, Brazil, to evaluate the performance of taro (Colocasia esculenta) intercropped with sunn hemp (Crotalaria juncea), used as green manure. A randomized blocks design with four replicates was used and the soil of the field plots was classified as Haplic Gleysol. Treatments consisted of taro (1) intercropped with unpruned sunn hemp, (2) intercropped with sunn hemp cut at soil level, (3) intercropped with sunn hemp pruned at its mid-height, and (4) in monoculture. The taro was planted in double rows spaced by 1.0 m. The planting furrows had a space of 0.5 m, with rhizomes placed at every 3.0 m. The experimental plot consisted of four 3.0 m rows and the useful area corresponded to the five central plants in each of the two central rows. The sunn hemp was sown in parallel lines in the spaces between the taro double rows, 120 days after planting the taro. When the sunn hemp was cut at soil level, an accumulation of 211 kg ha-1 of N was observed. Besides this, the sunn hemp's biomass promoted the cycling of an average 17 kg ha-1 of P, 85 kg ha-1 of K, 151 kg ha-1 of Ca, and 27 kg ha-1 of Mg. Worth mentioning, it represented also a deposition of 6.85 Mg ha-1 of dry substance. Even when pruned at its mid-height, the sunn hemp still provided 60% of nutrients relatively to the treatment in which it was cut at soil level. In addition to the nutrient supply, the use of taro intercropped with sunn hemp cut at soil level or pruned at mid-height represented efficient alternatives for controlling the spontaneous vegetation and for reducing taro leaf burning by solar radiation, without compromising the yield of taro. In all intercropping systems, taro plants had a larger leaf area and were taller than plants in monoculture.O experimento foi desenvolvido no município de Magé, Região Metropolitana do estado do Rio de Janeiro, para avaliar a influência do manejo da crotalária (Crotalaria juncea), usada como adubo verde, na forma de consórcio, sobre o desempenho do taro. O solo da área experimental foi classificado como Gleissolo Háplico. O delineamento experimental foi blocos casualizados com quatro repetições. Os tratamentos consistiram de cultivo do taro (1) consorciado com crotalária sem cortes, (2) consorciado com crotalária roçada rente ao nível do solo, (3) consorciado com crotalária cortada à metade de sua altura e (4) em monocultivo. O taro foi plantado em fileiras duplas espaçadas de 1,0 m. Os sulcos de plantio tiveram espaçamento de 0,5 m, com os rizomas colocados a cada 3,0 m. A parcela experimental consistiu de quatro linhas de 3,0 m, adotando como área útil as cinco plantas centrais em cada uma das linhas do meio. A crotalária foi semeada em linhas paralelas, no espaço entre os sulcos, 120 dias após o plantio do taro. Quando a crotalaria foi cortada rente ao solo, houve um acúmulo de 211 kg ha-1 de N, além da reciclagem de, em média, 17 kg ha-1 de P, 85 kg ha-1 de K, 151 kg ha-1 de Ca e 27 kg ha-1 de Mg. Observou-se ainda a deposição de 6,85 Mg ha-1 de matéria seca. Mesmo quando cortada a meia altura, a crotalária ainda forneceu 60% de nutrientes em relação ao tratamento em que foi cortada rente ao solo. Além do fornecimento de nutrientes, a utilização do taro consorciado com crotalária, quando esta foi roçada ao nível do solo ou cortada à metade de sua altura, foi eficaz para controle da vegetação espontânea e para redução da incidência de queimaduras foliares causadas pela radiação solar, sem comprometer o rendimento do taro. Independente do manejo da crotalária, as plantas de taro apresentaram maior área foliar e foram mais altas quando cultivadas em consórcio do que em monocultivo.
Date
A point or period of time associated with an event in the lifecycle of the resource
2007
Subject
The topic of the resource
Agricultura orgânica, Colocasia esculenta, Crotalaria juncea, controle do mato, leaf area, leaf burning, organic farming, queimaduras foliares, weed control, área foliar
Identifier
An unambiguous reference to the resource within a given context
10.1590/S0102-05362007000400013
Source
A related resource from which the described resource is derived
Horticultura Brasileira
Publisher
An entity responsible for making the resource available
Associação Brasileira de Olericultura
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Plant culture
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362007000400013" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362007000400013</a>
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https://www.socictopen.socict.org/files/original/301e1412e8d2bd0ef0f17e0d25885e63.pdf
4bfef3454daa4906f3b7c19e2574f706
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
Nutritional value of organic acid lime juice (Citrus latifolia T.), cv. Tahiti
Creator
An entity primarily responsible for making the resource
Carolina Netto Rangel, Lucia Maria Jaeger de Carvalho, Renata Borchetta Fernandes Fonseca, Antonio Gomes Soares, Edgar Oliveira de Jesus
Description
An account of the resource
Acid lime can be used as fresh fruit or as juice to increase the flavor of drinks. Therefore, it is necessary to analyze organic acid lime nutritional composition in order to evaluate if there are important differences among those conventionally produced. No significant differences in total titrable acidity, pH, ascorbic acid, sucrose, calcium, and zinc were found between the acid lime juice from organic biodynamic crops and conventional crops. However, the organic biodynamic fruits presented higher peel percentage than the conventional ones leading to lower juice yield. On the other hand, fructose, glucose, total soluble solids contents, potassium, manganese, iron, and copper were higher in the conventional samples. These results indicated few nutritional differences between organic and conventional acid lime juices in some constituents. Nevertheless, fruit juice from biodynamic crops could be a good choice since it is free from pesticides and other agents that cause problems to human health maintaining the levels similar to those of important nutritional compounds.
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
Subject
The topic of the resource
Citrus latifolia, composição físico-química, cultivos orgânicos, suco de fruta
Identifier
An unambiguous reference to the resource within a given context
10.1590/S0101-20612011000400014
Source
A related resource from which the described resource is derived
Food Science and Technology
Publisher
An entity responsible for making the resource available
Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Technology (General), Nutrition. Foods and food supply
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000400014&lng=en&tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000400014&lng=en&tlng=en</a>
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https://www.socictopen.socict.org/files/original/15a2b241cf6aff79192828183cb55eb5.pdf
46e167a8fa78887b5b1fa2d140de4288
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
Biobutanol production from coffee silverskin
Creator
An entity primarily responsible for making the resource
María Hijosa-Valsero, Jerson Garita-Cambronero, Ana I. Paniagua-García, Rebeca Díez-Antolínez
Description
An account of the resource
Abstract Background Coffee silverskin, a by-product from coffee roasting industries, was evaluated as a feedstock for biobutanol production by acetone–butanol–ethanol fermentation. This lignocellulosic biomass contained approximately 30% total carbohydrates and 30% lignin. Coffee silverskin was subjected to autohydrolysis at 170 °C during 20 min, with a biomass-to-solvent ratio of 20%, and a subsequent enzymatic hydrolysis with commercial enzymes in order to release simple sugars. The fermentability of the hydrolysate was assessed with four solventogenic strains from the genus Clostridium. In addition, fermentation conditions were optimised via response surface methodology to improve butanol concentration in the final broth. Results The coffee silverskin hydrolysate contained 34.39 ± 2.61 g/L total sugars, which represents a sugar recovery of 34 ± 3%. It was verified that this hydrolysate was fermentable without the need of any detoxification method and that C. beijerinckii CECT 508 was the most efficient strain for butanol production, attaining final values of 4.14 ± 0.21 g/L acetone, 7.02 ± 0.27 g/L butanol and 0.25 ± 0.01 g/L ethanol, consuming 76.5 ± 0.8% sugars and reaching a butanol yield of 0.269 ± 0.008 gB/gS under optimal conditions. Conclusions Coffee silverskin could be an adequate feedstock for butanol production in biorefineries. When working with complex matrices like lignocellulosic biomass, it is essential to select an adequate bacterial strain and to optimize its fermentation conditions (such as pH, temperature or CaCO3 concentration).
Date
A point or period of time associated with an event in the lifecycle of the resource
2018
Subject
The topic of the resource
ABE fermentation, Biorefinery, Lignocellulosic wastes, butanol, coffee silverskin, pretreatment
Identifier
An unambiguous reference to the resource within a given context
10.1186/s12934-018-1002-z
Source
A related resource from which the described resource is derived
Microbial Cell Factories
Publisher
An entity responsible for making the resource available
BMC
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Microbiology
Relation
A related resource
<a href="http://link.springer.com/article/10.1186/s12934-018-1002-z" target="_blank" rel="noreferrer noopener">http://link.springer.com/article/10.1186/s12934-018-1002-z</a>
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https://www.socictopen.socict.org/files/original/7f397d6faef0617f2f88d3b7076111f4.pdf
28006c810ade2642ed057ae1d7c9687c
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
Desempenho de lisímetro de pesagem hidráulica de baixo custo no semi-árido nordestino Low cost hydraulic weighing lysimeter performance in the semi arid northeast, Brazil
Creator
An entity primarily responsible for making the resource
Francisco X. dos Santos, José J. V. Rodrigues, Abelardo A. de A. Montenegro, Ronaldo F. de Moura
Description
An account of the resource
Medidas diretas de evapotranspiração de referência são importantes na avaliação e na calibração de métodos indiretos. Avaliou-se o desempenho de lisímetro de pesagem hidráulica de baixo custo, visando à determinação direta da evapotranspiração de referência (ETo), em área de assentamento rural no Semi-Árido nordestino. O lisímetro é de concepção simplificada, com travesseiros hidráulicos confeccionados com mangueira flexível de butil e revestida em náilon, interligados a um sistema manométrico com mercúrio e água. O equilíbrio do lisímetro foi estável, sendo o maior erro médio posicional de 3,93%. As calibrações geraram coeficientes de correlação superiores a 0,9993 e resoluções de leituras entre 0,095 e 0,134 mm. As leituras lisimétricas foram comparadas com estimativas da ETo obtidas, utilizando-se dos métodos de Penman-Monteith, Blaney-Criddle-FAO, Jensen-Haise e do Tanque Classe A-FAO. Adicionalmente, avaliou-se o desempenho de um tanque evaporimétrico simplificado, construído a partir de material reciclado, o qual vem sendo utilizado no manejo da irrigação em áreas de agricultura familiar. Todos os métodos analisados apresentaram bom desempenho, com medidas bem correlacionadas aàs do lisímetro, para o período estudado.Direct evapotranspiration measurements are important to the calibration of indirect methods. The performance of a low cost hydraulic weighing lysimeter was evaluated, aiming to estimate the reference evapotranspiration (ETo) in a settlement area in the Semi Arid Brazilian northeast. The lysimeter presents a simplified design, with loading cells of butyl internally covered with nylon, connected to a manometric system with mercury and water. The lysimeter equilibrium was stable, with the largest positional average error of 3.93%. Calibrations produced correlation coefficients higher than 0.9993, and reading resolutions between 0.095 and 0.134 mm. Lysimeter readings were compared to ETo estimate Penman-Monteith, Blaney-Criddle FAO, Jensen-Haise, and Class A methods. Additionally, the performance of a simplified evaporimetric tank was evaluated, built with recycled material, which has been used for irrigation management in communal areas. All the considered methods produced good results, well correlated to the readings from the lysimeter, for the studied period.
Date
A point or period of time associated with an event in the lifecycle of the resource
2008
Subject
The topic of the resource
Penman-Monteith, evapotranspiration, evapotranspiração, lisímetro de pesagem, necessidade hídrica, water requirement, weighing lysimeter
Identifier
An unambiguous reference to the resource within a given context
10.1590/S0100-69162008000100012
Source
A related resource from which the described resource is derived
Engenharia Agrícola
Publisher
An entity responsible for making the resource available
Sociedade Brasileira de Engenharia Agrícola
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=S0100-69162008000100012" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162008000100012</a>
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https://www.socictopen.socict.org/files/original/8f17b911ee988f218f9aaed7797ddec1.pdf
92e1f7dae976fee5abf7b860dc33156a
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
Incidência da varíola, causada por Asperisporium caricae, em folhas de mamoeiros submetidos ao manejo orgânico, em diferentes ambientes de cultivo
Creator
An entity primarily responsible for making the resource
Luiz Aurélio Peres Martelleto, Raul de Lucena Duarte Ribeiro, Mariluci Sudo-Martelleto, Antonio de Goes, Margarida Goréte Ferreira do Carmo
Description
An account of the resource
Mudas de mamoeiro da cultivar Baixinho de Santa Amália foram transplantadas para covas de 40x60x40 cm, em áreas de três estruturas contíguas: (a) estufa sombreada (cobertura de plástico), (b) estufa sombreada + sombrite (cobertura adicional de sombrite com 30% de sombreamento sobre o plástico) e (c) telado (cobertura exclusiva de sombrite 30%). Ao lado de tais estruturas foi implantada uma área de cultivo de mamoeiro em ambiente natural. Os tratos culturais aplicados foram os condizentes às normas técnicas vigentes na agricultura orgânica. As irrigações foram procedidas com mangueira plástica, evitando-se molhar folhas e frutos. Aos 45 dias pós-transplantio e, subseqüentemente, a intervalos mensais, as plantas foram inspecionadas em relação à incidência de lesões foliares causada pelo fungo Asperisporium caricae. Para efeito de análise estatística, após o teste de homogeneidade das variâncias, foram consideradas quatro repetições por ambiente (tratamento), com seis plantas úteis por parcela. O modelo de quantificação da doença indicou efeito altamente significativo dos ambientes protegidos, estufa e estufa sombreada, quanto à incidência de sintomas, em comparação com ambientes de telado e em área natural de cultivo. Durante os 12 meses de avaliações foi constatada alta correlação entre incidência da doença e pluviosidade e umidade relativa do ar. As estruturas cobertas com plástico demonstraram alto potencial de controle de A. caricae, sendo, portanto, recomendáveis no sistema orgânico de produção do mamoeiro.Transplants of Baixinho de Santa Amália papaya cultivar were grown in three neighboring plant growth facilities: a) greenhouse (covered with plastic sheet); b) shaded greenhouse (with sombrite 30% black screen over the plastic sheet); c) screenhouse (covered with sombrite 30% only). Next to such structures a plot was settled for cultivation under natural environment. Cultural practices were conducted according to technical regulations for organic production. Irrigations were proceeded with plastic hose avoiding to wet leaves and fruits. From the 45th day after transplanting and subsequently at monthly intervals the plants were monitored in relation to incidence of leaf lesions caused by the fungus Asperisporium caricae. For statistical analysis, after homogeneity of variance test, four repetition were considered within each ambient (= treatment), with six individuals for sampling. The model used for disease quantification indicated a highly significant effect of protected environments greenhouse and shaded greenhouse relating the reduction of leaf lesion numbers compared to screenhouse and natural cropping condition. Disease levels maintained a close correlation with rainfall and air relative humidity during the 12 months of evaluations. The plastic-covered structures showed high potential for controlling A. caricae on papaya leaves and may be recommended for papaya production in the organic system.
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
Subject
The topic of the resource
Agricultura orgânica, Carica papaya, organic agriculture
Identifier
An unambiguous reference to the resource within a given context
10.1590/S0100-54052009000400006
Source
A related resource from which the described resource is derived
Summa Phytopathologica
Publisher
An entity responsible for making the resource available
Grupo Paulista de Fitopatologia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Plant culture, Botany
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052009000400006" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052009000400006</a>
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https://www.socictopen.socict.org/files/original/fb25ae30a9f623562da8a20325133eee.pdf
4e64325a14f0cda356503a98211d9618
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
Swine manure post-treatment technologies for pathogenic organism inactivation Tecnologias de pós-tratamento de dejetos suínos para inativar organismos patogênicos
Creator
An entity primarily responsible for making the resource
Patrícia Bilotta, Airton Kunz
Description
An account of the resource
Swine manure agricultural use is a common practice in Brazil. Their physic-chemical characteristics favor its use as biofertilizer, but the presence of pathogens may become a risk to human health. This research presents a qualitative study of the main alternatives of pig manure disinfection, analyzing efficiency, advantages and limitations of each procedure. The disinfection studies reported in literature are based on the following treatments: alkaline, thermal, biological, chemical, and physical. The greater efficiencies are in thermal treatment (> 4 log: 60 °C), chemical treatment (3 to 4 log: 30mg Cl- L-1; 3 to 4 log: 40 mg O3 L-1) and physical treatment (3 a 4 log: 220 mJ UV radiation cm-2). The biological treatment (anaerobiosis) also promotes the pathogen reduction of swine manure, however with lower efficiency (1 to 2 log). The selection of the treatment should consider: implementation and operation cost, necessity of preliminary treatment, efficiency obtained and destination of the treated manure (agricultural use, water reuse). Brazilian regulation does not have specific guidelines for the microbiological quality of animal production effluents that is very important to be considered due to confined animal feeding operation transformation in the last years in the country.O uso agrícola de dejetos suínos é uma prática comum no Brasil. Suas características físico-químicas favorecem seu aproveitamento como biofertilizante, porém a presença de patógenos pode representar um risco à saúde humana. Este trabalho apresenta um estudo qualitativo das principais alternativas de desinfecção de dejetos suínos, analisando eficiência, vantagens e limitações de cada procedimento. Os estudos de desinfecção reportados na literatura são baseados nos seguintes tratamentos: alcalino, térmico, biológico, químico e físico. As maiores eficiências de redução de patógenos estão no tratamento térmico (>4 log: 60 °C), tratamento químico (3 a 4 log: 30 mg Cl- L-1; 3 a 4 log: 40 mg O3 L-1) e tratamento físico (3 a 4 log: 220 mJ radiação UV cm-2). O tratamento biológico (anaerobiose)também promove a redução de patógenos em dejetos suínos, porém com menor eficiência (1 a 2 log). A seleção do tratamento deve considerar: custo de implantação e operação, necessidade de tratamento preliminar, eficiência obtida e o destino do dejeto tratado (uso agrícola, reúso de água). A legislação brasileira não define diretrizes específicas de qualidade microbiológica dos efluentes da produção animal, o que rapidamente precisa ser estabelecido devido às transformações que a atividade tem sofrido nos últimos anos no País.
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
Subject
The topic of the resource
Biossegurança, Effluent reuse, Reuso de efluentes, biosecurity, chemical treatment, physical treatment, tratamento físico, tratamento químico
Source
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Engenharia Agrícola
Publisher
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Sociedade Brasileira de Engenharia Agrícola
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=S0100-69162013000200020" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000200020</a>
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https://www.socictopen.socict.org/files/original/45897f6ba93253e117472f462cf80b92.pdf
36ca0783515e47a26aa8c15c8bca6811
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
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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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Agricultura familiar, multifuncionalidade da agricultura e ruralidade: interfaces de uma realidade complexa Family farming, multifunctionality of agriculture and rurality: interfaces of a complex reality
Creator
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Julieta Teresa Aier de Oliveira, Regina Aparecida Leite de Camargo
Description
An account of the resource
Nas últimas décadas, assistimos à revitalização do debate em torno da agricultura familiar pela incorporação das discussões sobre as múltiplas funções da agricultura num rural que não pode mais ser visto como domínio exclusivo da atividade agrícola e dos agricultores. No contexto brasileiro, acreditamos que essa discussão deva ser permeada pela análise de como processos diferenciados de distribuição fundiária e desenvolvimento econômico e o tipo de agricultura resultante geram ruralidades específicas com características como, no caso da agricultura familiar, a manutenção de práticas sociais e de trabalho marcadas pelas relações de parentesco e vizinhança presentes numa sociedade de interconhecimento. Partindo desse princípio, este trabalho analisa a agricultura familiar de um bairro rural do município de Ouro Fino - MG, sua herança histórica e sua participação na criação de uma paisagem natural e humana que muito contribui para a atratividade da região.The last decades witnessed the revitalization of the debate around family farming with the addition of discussions regarding the multiple functions of agriculture, given the fact that rural areas are longer devoted exclusively to agricultural activities. In the Brazilian context, we believed that this debate must be permeated by analyses of how differentiated processes of land distribution and economic development, and the resulting types of agriculture, generate specific ruralities with characteristics such as, in the case of family farming, the maintenance of social and work practices marked by the relations among relatives and neighbours. It is in this light that this research analyses family agriculture in a rural area of Ouro Fino-MG, its historical heritage, and its participation in the creation of a physical and human landscape that greatly contributes to the attractiveness of the region.
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
Subject
The topic of the resource
Productive systems, bairros rurais, herança camponesa, paisagem rural, peasant heritage, rural landscapes, rural neighbourhoods, sistemas produtivos
Source
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Ciência Rural
Publisher
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Universidade Federal de Santa Maria
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://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000900030" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000900030</a>
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https://www.socictopen.socict.org/files/original/4c5f05999050aa75e9ec49c0a3edc8a1.pdf
86b75d303f226513bd277328f8ebc3cf
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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Viabilidade da cultura do morangueiro no Paraná - BR
Creator
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Dimas Soares Júnior, Edson Roberto Vaz Ronque, Maurício Ursi Ventura, Rogério Barbosa Macedo, Bruce Roberto Scheidl Campos
Description
An account of the resource
Avaliou-se a viabilidade da exploração do morangueiro, no Paraná, em duas áreas, 0,3 ha (área média cultivada pela agricultura familiar) e 1 ha, por um ano. Elaborou-se uma planilha de fluxo de caixa a partir da qual se calcularam: Período de Recuperação do Capital (PRC), Retorno sobre Investimento (RI), Valor Presente Líquido (VPL) e Taxa Interna de Retorno (TIR). Todos para Custo Operacional Efetivo (COE), Custo Operacional Total (COT) e Custo Total de Produção (CTP). Para uma situação considerada normal, os indicadores de rentabilidade calculados foram (Tipo de custo: VPL área-padrão (TIR área- padrão) / VPL área efetiva (TIR área efetiva)) COE: US$ 17.856,55 (42%) / US$ 4.795,85 (39%); COT: US$ 5.182,40 (11%) / - US$ 1.691,97 (-13%); CPT: US$ 4.846,26 (10%) / -US$ 1.792,80 (-14%). Fez-se a análise de cenários para os fatores produtividade, preço de venda e mão de obra, analisando o VPL e a TIR. Verificou-se que o tamanho da área influenciou na viabilidade econômica, mostrando a importância de se determinar anualmente a área mínima viável para a agricultura familiar. Os resultados indicaram que a cultura é viável em curto prazo, quando considerado o COE como parâmetro de análise, mas pode não se sustentar em prazos maiores quando se consideram o COT, o CTP e a variação de alguns fatores de produção. Pela análise de cenários definidos pelos fatores de produção analisados, o VPL e a TIR alteram-se para níveis que oferecem risco à exploração.
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
Subject
The topic of the resource
análise de sensibilidade, análise econômica da cultura de morango, produção de morango
Identifier
An unambiguous reference to the resource within a given context
10.1590/S0100-29452013000400014
Source
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Revista Brasileira de Fruticultura
Publisher
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Sociedade Brasileira de Fruticultura
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Plant culture
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000400014&lng=en&tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000400014&lng=en&tlng=en</a>
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https://www.socictopen.socict.org/files/original/0174c9c74213de6160622e3139357792.pdf
cbe56a6235a62ef01b29463ba48071be
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
Una red de sensores inalámbricos para la automatización y control del riego localizado
Creator
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Nesly Diana Castro, Luis Eduardo Chamorro, Carlos Andrés Viteri
Description
An account of the resource
Uno de los objetivos de la agricultura de precisión, es el riego de acuerdo con las necesidades particulares de cada porción del suelo de cultivo. En este trabajo, se describe el diseño e implementación de una red de sensores inalámbricos que es capaz de obtener mediciones de humedad del suelo de diferentes zonas de un cultivo de fresas y, según los datos recogidos, determina el tiempo de riego y la zona particular que se debe regar utilizando el método de goteo. Los requerimientos de agua para los cultivos se estimaron teniendo en cuenta la capacidad de campo y el umbral de riego; ambas fueron encontradas para cada zona del cultivo en periodo de producción. La comunicación entre los nodos de la red se basa en la pila de protocolos ZigBee, y el prototipo final es un sistema de control de riego de encendido/apagado en lazo cerrado, que incluye una banda de histéresis. Los resultados de la implementación de la red y el sistema de control muestran un incremento en la eficiencia del uso de agua, además de una mejora en la calidad de los frutos con respecto al método de riego tradicional.
Date
A point or period of time associated with an event in the lifecycle of the resource
2016
Subject
The topic of the resource
Zigbee, agricultura de precisión, humedad volumétrica
Identifier
An unambiguous reference to the resource within a given context
10.22267/rcia.163302.57
Source
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Revista de Ciencias Agrícolas
Publisher
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Universidad de Nariño
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.udenar.edu.co/index.php/rfacia/article/view/3105/3703" target="_blank" rel="noreferrer noopener">http://revistas.udenar.edu.co/index.php/rfacia/article/view/3105/3703</a>