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Additives to control the quality of coffee husk poultry litter. Repositório Alice
SOUZA, C. de F.; SANTOS, C. R. dos; INOUE, K. R. A.; TINÔCO, I. de F. F.; FERREIRA, W. P. M..
The poultry litter keeps the birds comfortable and absorbs the humidity generated in the environment, reducing the feet injuries. Then, its quality is essential. The objective for carrying out the present study was to evaluate the quality of the coffee husk poultry litter, treated with chemical additives, based on its humidity, N-ammonia, pH and bacteria total counting. The experiment was carried out in Minas Gerais state, Brazil, in a coffee producer region. It were used three facilities, in which it were placed circular boxes, each of them divided in seven parts, 2 m2 each one, where it were put the different types of poultry litter, being these the seven treatments: sawdust and coffee husks litter, being this last, new and untreated or treated with...
Tipo: Artigo de periódico Palavras-chave: Coffee production; Chemical conditioners; N-ammonia; Condicionador químico; N-amônia; Avicultura; Cafeicultura; Composto Orgânico; Poultry production; Organic compounds.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1108671
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Aggregate stability by the "high energy moisture characteristic" method in an oxisol under differentiated management Rev. Bras. Ciênc. Solo
Silva,Érika Andressa da; Oliveira,Geraldo César de; Silva,Bruno Montoani; Carducci,Carla Eloize; Avanzi,Junior Cesar; Serafim,Milson Evaldo.
Studies testing the High Energy Moisture Characteristic (HEMC) technique in tropical soils are still incipient. By this method, the effects of different management systems can be evaluated. This study investigated the aggregation state of an Oxisol under coffee with Brachiaria between crop rows and surface-applied gypsum rates using HEMC. Soil in an experimental area in the Upper São Francisco region, Minas Gerais, was studied at depths of 0.05 and 0.20 m in coffee rows. The treatments consisted of 0, 7, and 28 Mg ha-1 of agricultural gypsum rates distributed on the soil surface of the coffee rows, between which Brachiaria was grown and periodically cut, and compared with a treatment without Brachiaria between coffee rows and no gypsum application. To...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aggregation; Coffee production; Management systems; Method.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500028
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ALTERNATIVE GROWTH SCENARIOS FOR UGANDAN COFFEE TO 2020 AgEcon
You, Liangzhi; Bolwig, Simon.
Coffee is the most important export crop in Uganda and an important source of income among smallholder farmers in large parts of the country. The Robusta type dominates coffee production and Ugandan Robusta is demanded by roasters as a component in certain blends due to its special taste qualities. However, a combination of events outside and within Uganda, especially the collapse of world coffee prices in the late 1990s, are eroding farmer incomes and export revenues and threaten the long-term viability of the industry. In this context, the paper first investigates the challenges faced by the Ugandan coffee industry, namely the decline in the world coffee market, changes in procurement strategies among coffee importers, the rapidly expanding market for...
Tipo: Working or Discussion Paper Palavras-chave: Coffee production; Commodity exports; Quality; DREAM; Development strategy evaluation; Producer benefits; Uganda; Crop Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/16112
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Aspectos introdutórios de um modelo baseado no indivíduo para estudo da dinâmica espacial do HLB do citros. Repositório Alice
SERVIDONE, G.; TERNES, S.; VILAMIU, R.; LARANJEIRA, F. F..
RESUMO - O Huanglongbing (HLB) é uma doença incurável que afeta plantas de citros em todo o país. Como o Brasil é um dos maiores produtores de citros do mundo, essa doença pode causar um grande impacto econômico na agricultura brasileira. Visando contribuir para novas estratégias de controle da doença, estão sendo realizados estudos focados na modelagem baseada no indivíduo (MBI) para avaliar a propagação espaço-temporal da doença em áreas de plantio com a presença de um novo hospedeiro alternativo mais atrativo. Este trabalho tem como objetivo desenvolver a estrutura computacional de um MBI, utilizando o software R e o pacote Shiny que possibilita executar as simulações via web, a partir de premissas e estudos biológicos prévios da doença. As simulações...
Tipo: Anais e Proceedings de eventos Palavras-chave: Modelagem baseada no indivíduo; Huanglongbing; Software R; R Shiny; Image recognition; Coffee production; Greening disease; Citrus; Artificial intelligence; Image analysis.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1055877
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Climate change does not impact on Coffea arabica yield in Brazil. Repositório Alice
FERREIRA, W. P. M.; RIBEIRO JÚNIOR, J. I.; SOUZA, C. de F..
BACKGROUND: Brazil is the largest producer of coffee in the world. Studies on climate change estimate large impacts on the production of Coffea arabica (C. arabica). In this context, it is necessary to know the quantitative production values to provide evidence for policymakers to target the prompt answer.
Tipo: Artigo de periódico Palavras-chave: Coffee production; Yield projections; Climate impact; ARIMA model.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116844
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Crisis de la cafeticultura, estructura agraria, migración, descapitalización y organización en zonas indígenas. Estudio de caso en el municipio de Huehuetla, Puebla. Colegio de Postgraduados
Ortega Hernández, Alejandro.
En el presente trabajo se aborda el estudio de la relación que se establece entre la crisis de precios de la cafeticultura y las variables estructura agraria, migración, descapitalización y organización. Se plantea a lo largo de esta investigación que las variables crisis de precios y los procesos migratorios y de descapitalización mantienen una relación de cierta dependencia; mientras que la variable estructura agraria no se ve afectada por la crisis de precios; en este mismo sentido, los procesos organizativos constituyen una respuesta, por parte de los cafeticultores, ante las recurrentes crisis de precios. El marco conceptual se fundamentó en algunas de las categorías de la economía política, tales como crisis, estructura agraria, y campesino....
Palavras-chave: Crisis de precios; Cafeticultura; Estructura agraria; Migración; Descapitalización; Organización; Campesino; Campesino indígena; Crisis prices; Coffee production; Agrarian structure; Migration; Uncapitalization; Organization; Peasant; Indigenous peasant; Doctorado; CEDAR; Estrategias para el Desarrollo Agrícola Regional.
Ano: 2010 URL: http://hdl.handle.net/10521/114
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Crisis de la cafeticultura, estructura agraria, migración, descapitalización y organización en zonas indígenas. Estudio de caso en el municipio de Huehuetla, Puebla. Colegio de Postgraduados
Ortega Hernández, Alejandro.
En el presente trabajo se aborda el estudio de la relación que se establece entre la crisis de precios de la cafeticultura y las variables estructura agraria, migración, descapitalización y organización. Se plantea a lo largo de esta investigación que las variables crisis de precios y los procesos migratorios y de descapitalización mantienen una relación de cierta dependencia; mientras que la variable estructura agraria no se ve afectada por la crisis de precios; en este mismo sentido, los procesos organizativos constituyen una respuesta, por parte de los cafeticultores, ante las recurrentes crisis de precios. El marco conceptual se fundamentó en algunas de las categorías de la economía política, tales como crisis, estructura agraria, y campesino....
Palavras-chave: Crisis de precios; Cafeticultura; Estructura agraria; Migración; Descapitalización; Organización; Campesino; Campesino indígena; Crisis prices; Coffee production; Agrarian structure; Migration; Uncapitalization; Organization; Peasant; Indigenous peasant; Doctorado; CEDAR; Estrategias para el Desarrollo Agrícola Regional.
Ano: 2010 URL: http://hdl.handle.net/10521/114
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Estilos gerenciais e eficácia administrativa na produção de café AgEcon
Vale, Sonia Maria Leite Ribeiro do; Teixeira, Marcelo Brandao; Sant'Anna, Julio Cezar Oliveira.
The objective of this article was to analyze the managerial styles in coffee farmers of two regions in Minas Gerais State, Brazil (Sul and Zona da Mata), and the difficulties which can be compromising the administrative effectiveness. Primary data were collected from forms applied to 56 coffee farmers, in the harvest period 2003/2004. To analyze the relation between the dominant managerial styles and the reached economic and technical performances in the activity, the analysis of simple correlation was used (coefficient of Pearson). Regressions were estimated to indicate as the situational variables had intervened in the styles. Among the main results it is important to point out that the producers, in general, presented as dominant managerial style 9,9,...
Tipo: Journal Article Palavras-chave: Managerial styles; Managerial effectiveness; Managerial grid; Coffee production; Crop Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/55181
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Geoinformação na cafeicultura de Minas Gerais: mapas digitais, I3GEO, web Mapping e internet. Repositório Alice
ALVES, H. M. R.; VOLPATO, M. M. L.; VIEIRA, T. G. C.; BOELL, M. G.; SOUZA, V. C. O. de; MESQUITA JUNIOR, C. H..
O objetivo principal desse trabalho é o de apresentar os resultados do projeto intitulado ?Geotecnologias na integração, espacialização, análise e visualização de dados de pesquisa da cafeicultura mineira?. Esse projeto teve como objetivo principal integrar dados de pesquisa da cafeicultura mineira em um único banco de dados geográfico, visando a gestão da informação e a produção de novos conhecimentos por meio da análise espacial dessa base integrada e disponibiliza-los na internet. As informações foram disponibilizadas na internet por meio do site www.epamig.ufla.br/geosolos. O banco de dados está disponível para consultas textuais e espaciais por meio do web mapping i3Geo. O principal impacto desse projeto foi o de prover um ambiente integrado de...
Tipo: Artigo de periódico Palavras-chave: Geoprocessamento; Banco de dados geográfico; Web mapping; Geoprocessing; Geographic database; Coffee production; Cafeicultura.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1041250
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Índice de vegetação para o monitoramento agrometeorológico no Sul de Minas Gerais. Repositório Alice
VOLPATO, M. M. L.; MACIEL, D. A.; ALVES, H. M. R.; VIEIRA, T. G. C.; MEIRELES, E. J. L..
Tipo: Anais e Proceedings de eventos Palavras-chave: Eventos extremo; Extreme events; Coffee production; Sensoriamento remoto; Seca; Cafeicultura; Remote sensing; Drought.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1082565
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Innovation Trajectories in Honduras’ Coffee Value Chain. Public and Private Influence on the Use of New Knowledge and Technology among Coffee Growers AgEcon
Hartwich, Frank; Fromm, Ingrid; Romero, Gustavo.
In this paper, results from a study on the use of improved coffee production technology schemes among smallholder coffee producers in three prominent coffee producing regions in Honduras are presented. The impact of various schemes (trajectories) in which different agents influence the producers’ decision to use new technologies was analyzed. In particular, there are differences in the influence of a) private coffee buying organizations and b) government and public development agencies on the innovation behavior of coffee growers. Drawing from network data that depict the internal and outbound connectedness of producers in three village communities in main coffee producing zones in Honduras, tools of social network analysis were applied to find out how...
Tipo: Journal Article Palavras-chave: Coffee production; Innovation; Upgrading; Social networks; Honduras; Agribusiness; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Production Economics; Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/97027
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Innovation Trajectories in Honduras’ Coffee Value Chain? ‐ Public and the Private Influence on the Use of new Knowledge and Technology among Coffee Growers ‐ AgEcon
Fromm, Ingrid; Hartwich, Frank; Romero, Gustavo.
In this paper we present results from a study on the use of improved coffee production technology schemes among smallholder coffee producers in three prominent coffee producing regions in Honduras. We analyze the impact of various schemes (trajectories) in which different agents influence the producers’ decision to use new technologies. In particular, we distinguish the influence of a) private coffee buying organizations and b) government and public development agencies on the innovation behavior of coffee growers. Drawing from network data that depict the internal and outbound connectedness of producers in three village communities in main coffee producing zones in Honduras, we applied tools of social network analysis to find out how interactions with...
Tipo: Conference Paper or Presentation Palavras-chave: Coffee production; Innovation; Upgrading; Social networks; Honduras; Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics; International Relations/Trade; Marketing; Production Economics; Research Methods/ Statistical Methods.
Ano: 2010 URL: http://purl.umn.edu/100475
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Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil PAB
Morais,Heverly; Caramori,Paulo Henrique; Ribeiro,Ana Maria de Arruda; Gomes,José Carlos; Koguishi,Mirian Sei.
Recent studies on coffee (Coffea arabica L.) cultivation in agroforestry systems in Southern Brazil have shown the potential of partial shading to improve management of this crop. The objective of this work was to evaluate microclimatic conditions and their effects on coffee production of plants shaded with pigeon pea (Cajanus cajan) in comparison to unshaded ones, from May 2001 to August 2002 in Londrina, State of Paraná, Brazil. The appraised microclimatic characteristics were: global radiation, photosynthetic and radiation balance; air, leaf and soil temperatures; and soil humidity. Shading caused significant reduction in incident global solar radiation, photosynthetically active radiation and net radiation, and attenuated maximum leaf, air and soil...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coffea arabica; Cajanus cajan; Frost protection; Photosynthetically active radiation; Coffee production; Shade.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000500007
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Nonparametric Efficiency Analysis for Coffee Farms in Puerto Rico AgEcon
Gregory, Alexandra; Featherstone, Allen M..
Coffee production in Puerto Rico is labor intensive since harvest is done by hand for quality and topography conditions. Färe's nonparametric approach was used to estimate technical, allocative, scale and overall efficiency measures for coffee farms in Puerto Rico during the 2000 to 2004 period. On average Puerto Rico coffee farms were 46% technically efficient, 79% scale efficient, and 74% allocatively efficient.
Tipo: Conference Paper or Presentation Palavras-chave: Coffee production; Nonparametric efficiency; Crop Production/Industries; Research Methods/ Statistical Methods.
Ano: 2008 URL: http://purl.umn.edu/6765
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Performance of a variable-rate distribution system for simultaneous fertilizer application AGRIAMBI
Barros,Murilo M. de; Volpato,Carlos E. S.; Silva,Fabio M. da; Conceição,Fagner G. da; Corrêa Júnior,Delorme; Ribeiro,Luiz F..
ABSTRACT The objective of this study was to evaluate the performance of a variable-rate fertilizer distribution system for coffee crop, simultaneously applying two products. Two types of tests were performed: transversal deposition and longitudinal deposition. The transversal deposition test, with tarps, aimed to quantify the variations between programmed and applied doses, using a completely randomized design (CRD), in a factorial scheme, and the Scott-Knott test at p < 0.05. The longitudinal deposition test aimed to determine the distribution characteristics of the equipment along the displacement line, based on relative frequency values. In addition, the application rates on both sides of the distribution system were analysed using a CRD and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coffee production; Precision agriculture; Application at variable doses.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000200188
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Production Efficiency and Diversification in Mexican Coffee-Producing Districts AgEcon
Vedenov, Dmitry V.; Houston, Jack E.; Cardenas, Gabriela.
Coffee production system is analyzed for 24 municipios (districts) in Veracruz, Mexico, from 1997 to 2002. A stochastic frontier approach is used to estimate an input distance function and to evaluate production efficiency. Results show the production process to be stable over time despite global price fluctuations. Production of staple crop (corn) with either coffee or other cash crops results in increased efficiency as a result of the economies of complementarity, while production of coffee with other cash crops leads to lower efficiency. Factors contributing to higher efficiency included higher population density, road availability, and higher altitude, typically associated with production of higher-quality coffee.
Tipo: Journal Article Palavras-chave: Coffee production; Distance function; Mexico; Production systems; Stochastic frontier; Technical efficiency; L25; L79; O13; Q12.
Ano: 2007 URL: http://purl.umn.edu/37063
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Um estudo de descritores e classificadores para reconhecimento de bagas de café. Repositório Alice
STRINGHINI, P. H. F.; SANTOS, T. T..
RESUMO - Métodos de reconhecimento de frutos baseados na utilização de diferentes descritores e classificadores foram estudados. Foi utilizada uma base de dados de 3.393 imagens de café e não-café anteriormente criada e rotulada manualmente. Testes quantitativos demonstraram a identificação de bagas com 93% de precisão e 77% de cobertura utilizando descritores HoG adicionados a mediana dos componentes de cor do formato La*b*, aliados ao classificador Gradient Boosting. Esses resultados melhoram o método anteriormente proposto por Santos (2015), e demonstram a possibilidade de evolução de métodos que podem ser aplicados em metodologias de agricultura de precisão, monitoramento e predição de safra.
Tipo: Anais e Proceedings de eventos Palavras-chave: Aprendizado de máquina; Reconhecimento de imagens; Image recognition; Coffee production; Learning machine.; Cafeicultura; Image analysis; Artificial intelligence..
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1055882
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