https://socictopen.socict.org/files/original/eb8d1570ef01441077f55e911a81be76.pdf 8da79849a2c0296bba836ec6d92d969a 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 Balanço e análise da sustentabilidade energética na produção orgânica de hortaliças Energetic balance and sustainability analysis in the organic production of vegetable crops Creator An entity primarily responsible for making the resource Jacimar Luiz de Souza, Vicente Wagner D Casali, Ricardo HS Santos, Paulo R Cecon Description An account of the resource Os insumos e serviços utilizados na produção vegetal representam custo energético. Dependendo desses fatores e das produtividades obtidas, a conversão da produção em energia determinará a eficiência energética do sistema. A agricultura orgânica somente atingirá a missão de preservação ambiental se tiver comprovada sustentabilidade energética. Neste trabalho, objetivou-se caracterizar os balanços energéticos dos cultivos orgânicos e analisar sua sustentabilidade, em comparação aos sistemas convencionais. Monitoraram-se campos de produção de dez culturas, de 1991 a 2000 em Domingos Martins-ES. Os dados do sistema convencional foram obtidos pelas médias dos coeficientes técnicos da região. Quantificaram-se os coeficientes técnicos, convertendo suas grandezas físicas em equivalentes energéticos, expressos em kcal. O sistema orgânico gastou 4.571.159 kcal ha-1 e apresentou 12.696.712 kcal ha-1 de energia inserida na colheita, mostrando balanço médio de 2,78. Esse valor foi similar ao obtido no sistema convencional (1,93). As participações dos componentes nos gastos do sistema orgânico foram embalagem (35,8%), composto orgânico (17,2%), irrigação (12,6%), sementes/mudas (12,4%) e mão-de-obra (11,0%), serviços mecânicos (5,0%) e frete (4,5%). Se os custos com embalagens fossem eliminados, os gastos do sistema orgânico seriam reduzidos para 2.930.113 kcal ha-1, aumentando sua eficiência. A maioria dos cultivos orgânicos pode ser considerada sustentável em transformação de energia, com balanços superiores a 1,00 e produção média diária de 80.421 kcal ha-1 por dia, superior à necessidade mínima de 58.064 kcal ha-1.The inputs used in crop production represent an energetic cost. Depending on the inputs and on the achieved yields, the conversion of the harvest into energy will determine the energetic efficiency of the system. Organic agriculture will fully meet the goal of environmental conservation only if its energetic sustainability is accomplished. The objectives of this study were to characterize the energetic balance of organic vegetable production and to analyze its energetic sustainability, compared to conventional vegetable crop production systems. Field data were collected from ten vegetable crop fields, from 1991 to 2000 in Domingos Martins, Espírito Santo State, Brazil. Data from the conventional system were obtained in the region. The technical coefficients of the systems were quantified and converted to an energy equivalent (kcal). The general average of the organic system was an input of 4,571,159 kcal ha-1 and an output of 12,696,712 kcal ha-1 at harvest, presenting an energetic balance of 2.78. This balance was similar to the conventional system (1,93). The components of the energetic inputs in the organic system were packaging (35,8%), organic compost (17,2%), irrigation (12,6%), seeds/seedlings (12,4%) and labor (11,0%), machinery (5,0%) and transport (4,5%). If package costs were removed, the energetic inputs on the organic system would be reduced to 2,930,113 kcal ha-1, greatly improving its energetic efficiency. Most of the crops could be considered sustainable regarding energy conversion, presenting balances higher than 1.00. The daily average energy yield in the organic system was 80,421 kcal ha-1 day-1 and was considered sustainable, higher than the minimum estimated calories need (58.064 kcal ha-1). Date A point or period of time associated with an event in the lifecycle of the resource 2008 Subject The topic of the resource Agricultura orgânica, balanço energético, crop systems, energetic balance, organic agriculture, produtividade, sistemas de cultivo, yield Identifier An unambiguous reference to the resource within a given context 10.1590/S0102-05362008000400003 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&amp;pid=S0102-05362008000400003" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0102-05362008000400003</a>