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Registros recuperados: 114
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Estimation of the lifespan of agricultural tractor using a diffusion model at the aggregate level Ciencia e Investigación Agraria
Muñoz,Ricardo; Llanos,José.
The adoption of agricultural tractors by farms has resulted in different combinations, relationships and established ways of production of localities, regions and countries. The dynamics of the tractorization process are defined by the balance of the units that enter the fleet and those that are removed at the end of their useful life. This study uses a diffusion pattern and aggregated adoption of the agricultural tractor, the parameters of which were determined using a nonlinear estimation procedure and country-level data for Chile. Using the predictive power of the model, a longitudinal series of tractor fleets was estimated, and then the balance was calculated considering the units that were discharged. To more accurately determine the average lifespan...
Tipo: Journal article Palavras-chave: Aggregate diffusion; Agricultural mechanization; Lifespan; Technology adoption; Tractor; Tractorization.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300014
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Adoption of beef cattle traceability at farm level in São Paulo State, Brazil Ciência Rural
Vinholis,Marcela de Mello Brandão; Carrer,Marcelo José; Souza Filho,Hildo Meirelles de.
ABSTRACT: This paper aimed to identify the determinants of beef traceability adoption at farm level in São Paulo State, Brazil. A sample survey of 32 farmers who adopted the European Union certified traceability and 52 other farmers who did not adopt traceability provided data to test hypotheses on determinant factors. Three binomial logit models were used in the analysis. Results suggested that capital-intensive livestock production system, high scale production, access to specialized information and high level of human and social capital play significant role in the adoption decision.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Traceability; Certification; Technology adoption; Agriculture; Beef cattle.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900653
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Análisis de la situación actual de la producción de maíz y de la pluriactividad de los agricultores en el Valle de Puebla. Colegio de Postgraduados
Osorio García, Nemesio.
En México el maíz es el cultivo más importante debido a que es la base de la alimentación de la población y porque actualmente se le considera como materia prima para la industria. Lo anterior hace necesaria una mayor producción de este grano para garantizar la seguridad alimentaria de los mexicanos. Por lo tanto es necesario analizar la situación actual de la producción de maíz a diferentes niveles, incluyendo el regional, para hacer propuestas que nos permitan incrementar la producción de este grano básico. En el Valle de Puebla los rendimientos de maíz son bajos comparados con los resultados experimentales en este cultivo. Los objetivos de esta investigación fueron determinar cuál es la situación actual de la utilización, oferta y demanda de la...
Palavras-chave: Adopción; Oferta y demanda de tecnología; Productividad; Valle de Puebla; Technology adoption; Offer and demand; Pluriactivity; Maestría; EDAR; Estrategias para el Desarrollo Agrícola Regional.
Ano: 2010 URL: http://hdl.handle.net/10521/130
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Análisis de la situación actual de la producción de maíz y de la pluriactividad de los agricultores en el Valle de Puebla. Colegio de Postgraduados
Osorio García, Nemesio.
En México el maíz es el cultivo más importante debido a que es la base de la alimentación de la población y porque actualmente se le considera como materia prima para la industria. Lo anterior hace necesaria una mayor producción de este grano para garantizar la seguridad alimentaria de los mexicanos. Por lo tanto es necesario analizar la situación actual de la producción de maíz a diferentes niveles, incluyendo el regional, para hacer propuestas que nos permitan incrementar la producción de este grano básico. En el Valle de Puebla los rendimientos de maíz son bajos comparados con los resultados experimentales en este cultivo. Los objetivos de esta investigación fueron determinar cuál es la situación actual de la utilización, oferta y demanda de la...
Palavras-chave: Adopción; Oferta y demanda de tecnología; Productividad; Valle de Puebla; Technology adoption; Offer and demand; Pluriactivity; Maestría; EDAR; Estrategias para el Desarrollo Agrícola Regional.
Ano: 2010 URL: http://hdl.handle.net/10521/130
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Adapting the social-ecological system framework for urban stormwater management: the case of green infrastructure adoption Ecology and Society
Flynn, Carli D.; Department of Civil and Environmental Engineering, Syracuse University; cflynn@syr.edu; Davidson, Cliff I.; Department of Civil and Environmental Engineering, Syracuse University; Syracuse Center of Excellence in Environmental and Energy Systems; davidson@syr.edu.
Stormwater management has long been a critical societal and environmental challenge for communities. An increasing number of municipalities are turning to novel approaches such as green infrastructure to develop more sustainable stormwater management systems. However, there is a need to better understand the technological decision-making processes that lead to specific outcomes within urban stormwater governance systems. We used the social-ecological system (SES) framework to build a classification system for identifying significant variables that influence urban stormwater governance decisions related to green infrastructure adoption. To adapt the framework, we relied on findings from observations at national stormwater meetings in combination with a...
Tipo: Peer-Reviewed Reports Palavras-chave: Green infrastructure; Social-ecological systems framework; Stormwater management; Technology adoption.
Ano: 2016
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Percepção de produtores de caprino leiteiro da Paraíba e Pernambuco na implantação de leguminosas forrageiras. Infoteca-e
OLIVEIRA, L. S.; FELISBERTO, N. R. de O.; SILVA, F. J. S. da; ALMEIDA, G. H. O.; MERGULHÃO, F. C. da C.; NASCIMENTO, E. C. S.; SILVA, M. M. C. da.
Resumo: Com o intuito de fortalecer a rede de inovação em produção, beneficiamento e comercialização de derivados lácteos caprinos com identidade territorial, de forma a impulsionar a inserção social e produtiva de agricultores familiares da Paraíba e Pernambuco, foi idealizado o Projeto InovaCapri pertencente ao Programa InovaSocial, que teve início no segundo semestre 2019, com previsão de término para o primeiro semestre de 2026. Um dos eixos de atuação do projeto foi a adoção de práticas inovadoras, conservacionistas dos recursos naturais com foco na segurança alimentar dos rebanhos, com impactos na redução do custo de produção, aumento da produtividade, estabilidade da oferta de produtos e melhoria da qualidade do leite. Para identificar os pontos...
Tipo: Folhetos Palavras-chave: Technology adoption; Caprinocultura; Leguminosa Forrageira; Adoção de Inovações; Desenvolvimento Sustentável; Desenvolvimento Rural; Agricultura Familiar; Goats; Sustainable development; Rural development; Small farms; Forage grasses; Rural communities; Brazil.
Ano: 2023 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1157912
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Nivel tecnologico da agricultura familiar na regiao semi-arida da Bahia. Infoteca-e
CAVALCANTI, N. de B.; OLIVEIRA, C. A. V.; BRITO, L. T. de L.; RESENDE, G. M. de.
Na regiao semi-arida do Nordeste brasileiro, os pequenos agricultores convivem com uma situacao peculiar, quando se analisa os niveis de adocao de tecnologias e/ou tecnicas em seus sistemas de producao. A causa principal do baixo nivel tecnologico dos pequenos agricultores e a grande diversidade de fatores socioeconomicos e geoambientais que se apresentam nesta regiao. O objetivo deste trabalho foi identificar o nivel tecnologico dos pequenos agricultores por meio de analise do uso das tecnicas e/ou tecnologias em seus sistemas de producao. O trabalho foi realizado com pequenos agricultores de cinco municipios do Estado da Bahia em 1994 e 1995. Os resultados demonstraram que a maioria dos pequenos agricultores nao utilizam as tecnologias, o que contribui...
Tipo: Parte de livro Palavras-chave: Agricultura familar; Agricultor baixa renda; Adocao de inovacao; Bahia; Regiao semi-arida; Familiar farms; Small farmers; Technology adoption; Semi arid region; Tecnologia; Brazil.
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131728
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The Impact of Weather Extremes on Agricultural Production Methods: Does Drought Increase Adoption of Conservation Tillage Practices? AgEcon
Ding, Ya; Schoengold, Karina; Tadesse, Tsegaye.
The paper combines panel data techniques with spatial analysis to measure the impact of extreme weather events on the adoption of conservation tillage. Zellner’s SUR technique is extended to spatial panel data to correct for cross-sectional heterogeneity, spatial autocorrelation, and contemporaneous correlation. Panel data allow the identification of differences in adoption rates. The adoption of no-till, other conservation tillage, and reduced-till are estimated relative to conventional tillage. Extremely dry conditions in recent years increase the adoption of other conservation tillage practices, while spring floods in the year of production reduce the use of no-till practices.
Tipo: Journal Article Palavras-chave: Conservation tillage; Drought; Panel data; Technology adoption; Weather extremes; Crop Production/Industries.
Ano: 2009 URL: http://purl.umn.edu/57631
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A Dynamic Adoption Model with Bayesian Learning: Application to the U.S. Soybean Market AgEcon
Ma, Xingliang; Shi, Guanming.
Agricultural technology adoption is often a sequential process. Farmers may adopt a new technology in part of their land first and then adjust in later years based on what they learn from the earlier partial adoption. This paper presents a dynamic adoption model with Bayesian learning, in which forward-looking farmers learn from their own experience and from their neighbors about the new technology. The model is compared to that of a myopic model, in which farmers only maximize their current benefits. We apply the analysis to a sample of U.S. soybean farmers from year 2000 to 2004 to examine their adoption pattern of a newly developed genetically modified (GM) seed technology. We show that the myopic model predicts lower adoption rates in early years than...
Tipo: Conference Paper or Presentation Palavras-chave: Technology adoption; Bayesian learning; Structural estimation; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Industrial Organization; Production Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Risk and Uncertainty; Teaching/Communication/Extension/Profession.
Ano: 2011 URL: http://purl.umn.edu/104577
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Assessing the Response of Farm Households to Dairy Policy Reform in Israel AgEcon
Kimhi, Ayal; Rubin, Ofir D..
After nearly fifty years of stability and stagnation of dairy market regulations in Israel, a dramatic policy reform has been enacted in 1999. The reform enabled farm households, for the first time, to trade production quotas. In addition, the reform signaled to farmers that milk prices will gradually go down in real terms, and therefore only producers who expand and become more efficient will prevail. The reform allowed for generous financial support for investment in expansion, but also required the adoption of environmental regulations which could be costly to many farm families. This paper uses data from a census of small family-operated dairy enterprises that was conducted in 2001, in order to analyze the response of farm households to the reform. The...
Tipo: Conference Paper or Presentation Palavras-chave: Milk policy reform; Technology adoption; Intergenerational succession.; Agricultural and Food Policy.
Ano: 2007 URL: http://purl.umn.edu/9948
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A Stochastic-Dynamic Model of Costly Reversible Technology Adoption AgEcon
Baerenklau, Kenneth A.; Knapp, Keith C..
We develop a stochastic-dynamic model of technology adoption that imposes fewer restrictions on behavior than do previous studies of similar decision problems. Like these previous studies, our model is forward-looking and can be used to demonstrate the additional "hurdle rate" that must be met before adoption will take place when the future state of the world is uncertain. Unlike these previous studies, our approach does not impose the untenable assumptions that investment in a new technology is irreversible or that technologies have unlimited useful lifetimes. Rather, we address the more reasonable situation of costly reversibility and limited lifetimes. Our solution method utilizes Bellman's equation and standard dynamic programming techniques....
Tipo: Conference Paper or Presentation Palavras-chave: Dynamic optimization; Irrigation; Reversible; Technology adoption; Water; Research and Development/Tech Change/Emerging Technologies.
Ano: 2005 URL: http://purl.umn.edu/19156
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Smallholders' Cost Efficiency in Mozambique: Implications for Improved Maize Seed Adoption AgEcon
Zavale, Helder; Mabaya, Edward T.; Christy, Ralph D..
Maize is an important staple in Mozambique. It is also a dominant crop produced by smallholder farmers. However, the actual maize yields, currently estimated at 1.4 tons/ha, fall short of potential yields of 5-6.5 tons/ha. With population growth rate increasingly exceeding agricultural (and maize) productivity growth rate, the government of Mozambique faces a serious problem of food insecurity and poverty alleviation. This study examines cost inefficiency among smallholder maize farmers in Mozambique, and the impact of improved maize seed adoption on cost efficiency. A Translog functional form is used to estimate the frontier cost function. A cost-inefficiency function is used to examine the factors that determine cost inefficiency among farmers....
Tipo: Conference Paper or Presentation Palavras-chave: Stochastic frontier; Technology adoption; Selection bias; Mozambique; Crop Production/Industries; Q12; Q16; D13; O33.
Ano: 2006 URL: http://purl.umn.edu/25648
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An impact evaluation of technology adoption by smallholders in Sichuan, China: the case of sweet potato-pig systems AgEcon
Lapar, Ma. Lucila A.; Ngoc Toan, Nguyen; Zou, Chengyi; Liu, Jinyuan; Li, Xianglin; Randolph, Thomas F..
We employ propensity score matching (PSM) framework to examine the impact of sweet potato-based feed technology adoption on household-based pig production in Sichuan, China. An ex post survey in six villages was conducted in 2009, of which five villages were in project intervention sites (exposed area) and one village in the same township but not exposed to project intervention (non-exposed area). We randomly selected 111 households in the exposed areas from the list of households previously interviewed in a baseline survey and 53 households from non-exposed area. Matching estimators such as nearest neighbor matching (NNM), radius matching (RM) and kernel matching (KM) were used to estimate average treatment effects. Results indicate positive net benefit...
Tipo: Conference Paper or Presentation Palavras-chave: Technology adoption; Impact assessment; Crop-livestock systems; Livestock Production/Industries; Production Economics; O22; O33; Q16.
Ano: 2011 URL: http://purl.umn.edu/100577
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Land Degradation in Ethiopia: What do Stoves Have to Do with it? AgEcon
Gebreegziabher, Zenebe; van Kooten, G. Cornelis; van Soest, Daan P..
Land degradation is a particularly vexing problem in developing countries; as forests are depleted, crop residues and dung are used for fuel, which degrades cropland. In Ethiopia, the government encourages tree planting and adoption of energy efficient stove technologies to mitigate land degradation. We use data from 200 households in Tigrai, Ethiopia to examine the adoption of new stove technologies. Adoption is an economic decision, related to savings in time spent collecting fuel and cooking, and cattle required for everyday purposes. Results indicate adopters of efficient stoves reduce respective wood and dung use by 68 and 316 kg per month.
Tipo: Working or Discussion Paper Palavras-chave: Land degradation; Technology adoption; Africa; Ethiopia; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy; O55; Q24; Q55.
Ano: 2005 URL: http://purl.umn.edu/37026
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Production Cost and the Sequential Adoption of Precision Technology AgEcon
Ebel, Robert M.; Schimmelpfennig, David E..
Tipo: Presentation Palavras-chave: Production cost; Precision agriculture; Technology adoption; Agribusiness; Crop Production/Industries; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2012 URL: http://purl.umn.edu/124393
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Revisiting the Impact of Bt Corn Adoption by U.S. Farmers AgEcon
Fernandez-Cornejo, Jorge; Wechsler, Seth James.
This study examines the impact of adopting Bt corn on farm profits, yields, and insecticide use. The study employs an econometric model that corrects for self-selection and simultaneity. The model is estimated using nationwide farm-level survey data for 2005. Regression analysis confirms that Bt adoption is associated with increased profits, yields and seeding rates. However, the results of this analysis suggest that Bt adoption is not significantly related to insecticide use. This result appears to be related to the fact that insect infestation levels were lower in 2005 than they were in earlier years.
Tipo: Conference Paper or Presentation Palavras-chave: Genetically engineered corn; Insect resistance; Bt corn; Insecticide use; Technology adoption; Yields; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011 URL: http://purl.umn.edu/103327
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THE COMPLEX DYNAMICS OF SMALLHOLDER TECHNOLOGY ADOPTION: THE CASE OF SRI IN MADAGASCAR AgEcon
Moser, Christine M.; Barrett, Christopher B..
This paper explores the dynamics of smallholder technology adoption, with particular reference to a high-yielding, low-external input rice production method in Madagascar. We present a simple model of technology adoption by farm households in an environment of incomplete financial and land markets. We then use a probit model and a symmetrically trimmed least squares estimation of a dynamic Tobit model to analyze the decisions to adopt, expand and disadopt the method. We find that seasonal liquidity constraints discourage adoption by poorer farmers. Learning effects – both from extension agents and from other farmers– exert significant influence over adoption decisions.
Tipo: Working or Discussion Paper Palavras-chave: Technology adoption; Learning; The System of Rice Intensification; Conformity effects; Farm Management; O0; O1; Q0; Q16; Q12; Q18.
Ano: 2003 URL: http://purl.umn.edu/14735
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AN INITIAL INVESTIGATION OF THE POTENTIAL FOR HERMETIC PURDUE IMPROVED CROP STORAGE (PICS) BAGS TO IMPROVE INCOMES FOR MAIZE PRODUCERS IN SUB-SAHARAN AFRICA AgEcon
Jones, Michael; Alexander, Corinne E.; Lowenberg-DeBoer, James.
Pests like the larger grain borer (P. truncatus) and the maize weevil (S. zeamis) cause significant storage losses for African maize producers. The value of storage protection to a market-oriented farmer is a function of price seasonality, value loss prevention, and their opportunity costs of capital. Evidence suggests that hermetic technologies like Purdue Improved Crop Storage (PICS) bags can be effective against these key maize storage pests, but sustainable technology transfer requires that it be profitable for producers. This analysis references dry weight loss figures from key life science articles and builds on previous value loss research to provide a geographic model for potential storage technology adoption. PICS bag profitability with one and...
Tipo: Working or Discussion Paper Palavras-chave: Agricultural pests; Technology adoption; Maize; Larger grain borer; Hermetic storage; Storage economics; Agribusiness; International Development; Research and Development/Tech Change/Emerging Technologies; Q16; Q13; O33.
Ano: 2011 URL: http://purl.umn.edu/115554
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Do Large Firms with More Technologies Pay More? AgEcon
Yu, Li; Ji, Yongjie.
Investigation of size wage premium in earning’s literature neglects the important role played by technology adoption. This study models the size selection corrected earning’s function by introducing an extra dimension of selection of technology complexity, using a sample from workers in US hog farms. The estimated wage gap between large and small farms is reduced once correction in selection is controlled. Workers compensate monetary income for better work environment, better health and more job security, in which large farms and technologically advanced farms have advantages.
Tipo: Conference Paper or Presentation Palavras-chave: Size; Technology adoption; Wage; Double selection; Agriculture; Health; Research and Development/Tech Change/Emerging Technologies; Agribusiness.
Ano: 2010 URL: http://purl.umn.edu/61493
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Towards a Sustainable Future: The Dynamic Adjustment Path of Irrigation Technology and Water Management in Western U.S. Agriculture AgEcon
Schaible, Glenn D.; Kim, C.S.; Aillery, Marcel P..
Tipo: Conference Paper or Presentation Palavras-chave: Technology adoption; Water conservation; Irrigation; Dynamic groundwater models; Sustainable agriculture; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/49244
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