|
|
|
| Registros recuperados: 60 | |
|
| |
|
| |
|
|
| Caraschi,José C.; Viana,Ronaldo da S.; Moreira,Bruno R. de A.; Prates,Glaucia A.. |
| ABSTRACT The aim of this study was to evaluate the energetic potential achieved by the application of phyto-regulators to sweet sorghum cultivars. A randomized complete block design was used. Experiments were conducted using two sweet sorghum cultivars (BRS 508 and BRS 509), fourphyto-regulators (ethephon, ethyl-trinexapac, glyphosate, and sulfometuron-methyl), and a control; four replicates were performed 70 days after sowing, at the beginning of the flowering phase of the plants, with the aid of a CO2-pressurized coastal sprayer. The plants were harvested after 40 days, with the stems being cleared at the height of the apical bud, and were subjected to grinding for the extraction of broth. The following analyses were carried out: chemical (total... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Green Energy; Bioenergy; Biofuel; Renewable energy. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000400426 |
| |
|
|
| Jordan,Rodrigo A.; Gomes,Eder P.; Biscaro,Guilherme A.. |
| The energy balance for the production of sunflower oil and cake was carried out during the agricultural and industrial stage phase, where it was considered a cold extraction by hydraulic pressing, with the plant location in a rural area with a radius of 30km range. Data on productivity was used in two varieties of sunflower (Helio 358 and Aguará 04) grown in different seasons (2007/2008, 2008/2009), under different irrigation levels. Data showed that irrigation resulted in an increase in productivity of both varieties, and the best response was observed for Aguará 04 variety. Moreover, the increased intensity of irrigation negatively affected the energy balance, reducing the ratio between energy produced and energy used in the production chain. The most... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioenergy; Sunflower; Irrigation; Energy balance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600006 |
| |
|
|
| Tonello,Tamiris U.; Andreani,Cristiane L.; Mari,Angelo G.; Fernandes,José R.; Gomes,Simone D.. |
| ABSTRACT The hydrogen is a fuel with a high energy density. Studies have sought to verify the potential of different residues and configurations of reactors in the production of biohydrogen. This study evaluated the influence of the organic loading rate on the production of biohydrogen from cassava starch wastewater (CSW) in anaerobic sequencing batch biofilm reactors (AnSBBR) operated in a fed-batch. In the tests, the organic loading rates of 9.0; 13.5 and 18.0 gCT L−1 d−1 were used, at cycle times (CT) of 4; 4 and 2 h (tests I, II and III, respectively). The reactor was inoculated with sludge from a pilot anaerobic reactor used in the treatment of CSW, heat treated (heated at 90°C for 15 min). With the increase of the organic load (condition I to II)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fed-batch; Fermentative process; Bioenergy; Cassava starch wastewater. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500768 |
| |
|
|
| Flores,Rilner A.; Urquiaga,Segundo; Alves,Bruno J. R.; Collier,Leonardo S.; Boddey,Robert M.. |
| The objective of this study was to evaluate the performance of two genotypes of elephant grass, fertilized with and without N, for biomass production for energy use under the edaphoclimatic conditions of the Cerrado. The genotypes Roxo and Paraíso, grown in a field experiment in a Latosol in the Cerrado region were evaluated for biomass yield, nitrogen accumulation, C:N and stem:leaf ratios, fibre, ash and P and K contents and calorific value. The accumulated dry biomass ranged from 30 to 42 Mg ha-1 and showed no response to nitrogen fertilization with the lowest biomass obtained by the genotype Paraíso and the highest by Roxo. The total N accumulation followed the same pattern as for dry matter, ranging from 347 to 539 kg N ha-1. C:N and stem:leaf ratio... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pennisetum purpureum; Bioenergy; Nitrogen fertilizer. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000500003 |
| |
|
|
| Oliveira,Alisson MS; Blank,Arie F; Alves,Rodrigo P; Arrigoni-Blank,Maria F; Maluf,Wilson R; Fernandes,Roberta PM. |
| RESUMO A batata doce é tecnicamente uma planta perene, plantada e explorada como anual. A identificação do período de cultivo e de clones é importante para melhorar o aproveitamento dessa cultura, tanto na alimentação humana e animal, como para produção de etanol. Objetivou-se avaliar o desempenho de clones de batata doce cultivados em diferentes períodos de cultivo para a produção de bioetanol. Foram testados nas parcelas três períodos de cultivo (3, 5 e 7 meses), e nas subparcelas, cinco clones de batata doce (acessos IBP-007, IBP-038, IBP-075, IBP-079 e IBP-149), além da cultivar Brazlândia Rosada. Foram analisados o teor de matéria seca de raiz, amido e amilose e rendimento de amido e etanol. O clone IPB-007 apresentou elevados valores para rendimento... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomoea batatas; Plant science; Bioenergy; Ethanol.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000100057 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| ALVES, F. V.; ALMEIDA, R. G. de; LAURA, V. A.. |
| Agriculture in Brazil, as well as worldwide, has been striving to meet the increasing demand for food, timber, fibers and bioenergy. While larger production is necessary, restrictions for expansion over natural environments increase. For the Brazilian beef industry, the current trend is towards little increase on herd numbers, despite reduction on grazing areas. This will lead to intensification of sown pastures, optimizing use of inputs, along with improved management, feeding and introduction of technologies like integrated systems. There is also a growing concern from the sector towards environmental preservation and the need for a more efficient use of inputs and natural resources if future demands are to be met. Therefore, agriculture will have to... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Sustainable beef production; Greenhouse gases emissions; Bioenergy. |
| Ano: 2017 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1080610 |
| |
|
| |
|
|
| GARCIA, R. A.; SUTIER, G. A. da S.. |
| Os resíduos do sorgo-sacarino, pela liberação de substâncias alelopáticas, podem afetar negativamente o desenvolvimento da cultura em sucessão. Nesse contexto, objetivou-se avaliar os efeitos dos resíduos de duas cultivares de sorgo-sacarino na soja Semeada em sucessão, em função de intervalos para semeadura após o manejo do sorgo. O experimento foi conduzido em casa de vegetação na Embrapa Agropecuária Oeste, em Dourados, MS, em vasos com capacidade de 14 litros. O delineamento utilizado foi inteiramente casualizado, em esquema fatorial 2x4, com quatro repetições. Os tratamentos foram constituídos por duas cultivares de sorgo (BRS 506 e BRS 511) e quatro intervalos para semeadura da soja após manejo da gramínea (0, 3, 6 e 9 dias). As plantas de sorgo... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Crescimento radicular; Agroenergia; Sorgoleone; Root; Growth.; Palhada.; Bioenergy; Straw.. |
| Ano: 2016 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1054658 |
| |
|
|
| GALVANI, F.; OKAMURA, L. A.; SALIS, S. M.. |
| Resumo: A utilização de fontes renováveis na matriz energética mundial, especialmente a proveniente da biomassa, é um dos maiores desafios da sociedade atual na busca por alternativas ambientalmente favoráveis e economicamente viáveis. O uso de resíduos de biomassa tem se mostrado ser essa alternativa para a produção de energia renovável, seja por meio da queima direta, ou pela fabricação de bioproduto. Neste sentido, o objetivo deste trabalho é caracterizar química e fisicamente os resíduos de duas espécies lenhosas nativas, canjiqueira (Byrsonima cydoniifolia) e cambará (Vochysia divergens), provenientes do manejo de limpeza do campo no Pantanal para avaliar e identificar suas potencialidades de aplicação em novos produtos e/ou geração de energia. As... |
| Tipo: Folhetos |
Palavras-chave: Bioenergia; Biomassa; Recurso Energético; Bioenergy; Biomass production; Energy resources. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137802 |
| |
|
|
| Vasseur, Christophe; Bougaran, Gael; Garnier, Matthieu; Hamelin, Jérôme; Leboulanger, Christophe; Le Chevanton, Myriam; Mostajir, Behzad; Sialve, Bruno; Steyer, Jean-philippe; Fouilland, Eric. |
| Association of microalgae culture and anaerobic digestion seems a promising technology for sustainable algal biomass and biogas production. The use of digestates for sustaining the growth of microalgae reduces the costs and the environmental impacts associated with the substantial algal nutrient requirements. A natural marine algae–bacteria consortium was selected by growing on a medium containing macro nutrients (ammonia, phosphate and acetate) specific of a digestate, and was submitted to a factorial experimental design with different levels of temperature, light and pH. The microalgal consortium reached a maximum C conversion efficiency (i.e. ratio between carbon content produced and carbon supplied through light photosynthetic C conversion and acetate)... |
| Tipo: Text |
Palavras-chave: Optimization; Nannochloris; Heterotrophic bacteria; Anaerobic digestion; Bioenergy. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00085/19642/17419.pdf |
| |
| Registros recuperados: 60 | |
|
|
|
