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	Provedor de dados AgEcon (3) Agronomy (1) Autor Albuquerque, Abel Washingthon de; UFAL (1) Bangura, Arnold (1) Beniston, Martin (1) Bicudo, Silvio José; UNESP (1) Calanca, Pierluigi (1) Cruz, Simério Carlos Silva; UNESP (1) De Groote, Hugo (1) Fuhrer, Jurg (1) Heidhues, Franz (1) Kimenju, Simon Chege (1) Machado, Carla Gomes; UNESP (1) Marinda, Pamela (1) Muhammad, Lutta (1) Owuor, George (1) Pereira, Francisco Rafael da Silva; UNESP (1) Santos, José Robeto; UFAL (1) Torriani, Daniele Simone (1) Mais... Palavra-chave Maize production (4) Crop Production/Industries (3) Kenya (2) 5.01.03.04-0 Produção de Mudas características químicas do solo (1) Climate risks (1) Climatic change (1) Cultivo consorciado (1) Drought (1) Environmental Economics and Policy (1) Farm Management (1) Food security (1) Gender (1) Hedging (1) Intercropping system (1) Labor and Human Capital (1) Land Economics/Use (1) Land use (1) Produção de milho Preparos de solo chemical characteristics of soil (1) Q1 (1) Q12 (1) Mais... Tipo do documento Conference Paper or Presentation (3) Ano 2009 (1) 2007 (1) 2006 (2) País United States (3) Brazil (1) Idioma Inglês (3) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Alternative Hedging Strategies in Maize Production to Cope with Climate Variability and Change AgEcon Fuhrer, Jurg; Beniston, Martin; Calanca, Pierluigi; Torriani, Daniele Simone. Climate change with increasing climate variability is likely to alter risks in agricultural production. The effectiveness of using weather derivatives to hedge against drought risks for rain-fed grain maize production was investigated for current (1981-2003) and future (2070- 2100) climates in Switzerland. The climate change scenario was extrapolated from results of a regional climate model (HIRHAM4) based on the IPCC A2 emission scenario. In addition, a sensitivity analysis was performed by varying the mean and variance of the initial probability space for the seasonal precipitation sum. Profits and risks with and without hedging were compared using the analogy of the value-at-risk measure (VaR), i.e., a quantile-based measure of risk. A Monte Carlo chain... Tipo: Conference Paper or Presentation Palavras-chave: Climatic change; Climate risks; Drought; Maize production; Weather derivatives; Hedging; Crop Production/Industries; Environmental Economics and Policy; Risk and Uncertainty. Ano: 2007 URL: http://purl.umn.edu/9275 Consórcio de milho e Brachiaria decumbens em diferentes preparos de solo - DOI: 10.4025/actasciagron.v31i4.915 Agronomy Cruz, Simério Carlos Silva; UNESP; Pereira, Francisco Rafael da Silva; UNESP; Bicudo, Silvio José; UNESP; Santos, José Robeto; UFAL; Albuquerque, Abel Washingthon de; UFAL; Machado, Carla Gomes; UNESP. Preparos conservacionistas e sistemas de produção que visam à maximização sustentável do uso do solo e da água têm surgido como alternativas para regiões caracterizadas por períodos chuvosos relativamente curtos e temperaturas elevadas. O objetivo deste trabalho foi avaliar o sistema de consorciação entre milho e Brachiaria decumbens que melhor se adapte às condições edafoclimáticas da região da Zona da Mata do Estado de Alagoas. Os tratamentos consistiram de um híbrido de milho BRS3150, cultivado nos sistemas: Preparo Convencional, Cultivo Mínimo e Semeadura Direta (BRS3150 consorciado com Brachiaria decumbens). O delineamento utilizado foi o de blocos casualisados com parcelas subdivididas. Amostras de solo foram coletadas para análise química. Também... Palavras-chave: 5.01.03.04-0 Produção de Mudas características químicas do solo; Cultivo consorciado; Produção de milho Preparos de solo chemical characteristics of soil; Intercropping system; Maize production. Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/915 Does Land Use Patterns Matter for Bt-Maize: The Case of Maize Farming System in Kenya AgEcon Muhammad, Lutta; Owuor, George; De Groote, Hugo; Kimenju, Simon Chege. Population pressures and the need to optimize the use of limited available land has led to increasing cropping affluence levels within the maize agro-ecologies in Kenya, and a shift from large to smallholder intensification and multiple cropping patterns. Using a geographic information system, this study relates cropping patterns, by area share, maize productivity and household incomes across maize agro-ecologies, with the purpose to establish a decision support system for optimizing land allocation and in priority setting for introduction of new technologies such as Bt maize varieties. Results show that land use patterns and maize productivity in maize farming systems differ between agroecological zones. The high potential areas experience high maize... Tipo: Conference Paper or Presentation Palavras-chave: Land use; Smallholders; Maize production; Food security; Kenya; Crop Production/Industries; Land Economics/Use. Ano: 2006 URL: http://purl.umn.edu/25609 Technical Efficiency Analysis in Male and Female-Managed Farms: A Study of Maize Production in West Pokot District, Kenya AgEcon Marinda, Pamela; Bangura, Arnold; Heidhues, Franz. There has been a decline in crop productivity in Kenya, a situation that has contributed to the raising food insecurity in the country. Communities in arid and semi-arid areas of the country, the landless, and female headed households are particularly vulnerable to food insecurity. Given the rising percentage of female headed households in Kenya (estimated at 37% in 2005), there is need to examine crop productivity in male and female managed farms and do a diagnosis of factors that lead to low productivity in female headed households and hence their higher vulnerability to food insecurity. This paper aims at examining gender differentials in farm resource ownership and how it affects the technical efficiency in maize production in male and female managed... Tipo: Conference Paper or Presentation Palavras-chave: Gender; Technical efficiency; Maize production; Kenya; Crop Production/Industries; Farm Management; Labor and Human Capital; Q12; Q18; Q1. Ano: 2006 URL: http://purl.umn.edu/25599 Registros recuperados: 4 Primeira ... 1 ... Última

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