SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

2008 PRECISION AGRICULTURAL SERVICES DEALERSHIP SURVEY RESULTS

Bitsch, Vera.

The Michigan State University (MSU) Dairy Team conducted an industry survey with the objectives of identifying and rating industry priorities. After holding discussion groups across the state, two questionnaires were developed and sent to 2,237 dairy farm owners and operators and 480 allied industry professionals in the state; 23.4% of the dairy farmers and 28.1% of the allied industry professionals returned questionnaires with useable data. This report summarizes respondents’ ratings of industry issues, as well as education and knowledge needs. In addition, educational preferences, management practices, Internet use and access, demographic information, and farm characteristics are outlined.

Tipo: Report

Palavras-chave: Dairy farmers; Dairy industry; Extension evaluation; Information sources; Internet use; Survey questionnaire; Agribusiness; Agricultural and Food Policy; Environmental Economics and Policy; Farm Management; Labor and Human Capital; Livestock Production/Industries; Marketing; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession; M0; Q12; Q13; Q14; Q16; Q18.

Ano: 2009

URL: http://purl.umn.edu/51842

Whipker, Linda D.; Akridge, Jay T..

Precision technologies are now well-integrated into the agricultural industry – both at the farm level and at the crop input dealer level. No longer are crop input dealers only using the technologies to bring new services to their customers, they are also utilizing the technology in their own businesses to improve the efficiency and effectiveness of their operations. In early 2008, Crop Life magazine and Purdue University’s Center for Food and Agricultural Business conducted a survey for the 13th consecutive year to assess the adoption of precision agriculture practices in the U.S. from the perspective of the retail crop input dealer. The questionnaire was mailed to 2500 retail crop input dealerships across the U.S. A total of 298 questionnaires were...

2011 Updated Arkansas Global Rice Model

Palavras-chave: Precision agriculture; Geographic information systems (GIS); Crop input dealer; Variable rate application; Site-specific agriculture; Technology adoption.; Agribusiness; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; Q13; O30; L84.

Ano: 2008

URL: http://purl.umn.edu/46427

Wailes, Eric J.; Chavez, Eddie C..

The Arkansas Global Rice Model is based on a multi-country statistical simulation and econometric framework. The model is disaggregated by five world regions: Africa, the Americas, Asia, Europe, and Oceania. Each region includes country models which have a supply sector, a demand sector, a trade, stocks and price linkage equations. All equations used in this model are estimated using econometric procedures or identities. Estimates are based upon a set of explanatory variables including exogenous macroeconomic factors such as income, population, inflation rate, technology development, and especially, government determined policy variables which reflect the various mechanisms by which countries intervene in their rice sector economy. Individual country...

Tipo: Report

Palavras-chave: Rice; Trade model; Policy; Agricultural and Food Policy; Research and Development/Tech Change/Emerging Technologies; CO2; C61; F11; F14; Q17; Q18.

Ano: 2011

URL: http://purl.umn.edu/102650

2nd Forum on Irrigation and water for sustainable development: 15 –16 December, 2008 Ghion Hotel, Addis Ababa, Ethiopia

Awulachew, Seleshi Bekele; Erkossa, Teklu; Balcha, Yodit.

Tipo: Presentation

Palavras-chave: Sustainable development; Irrigation management; Irrigation water; Irrigated farming; Irrigation systems; Supplemental irrigation; Land management; Land use; Investment; Case studies; Government policy; Rural poverty; Groundwater; Small scale systems; Socioeconomic development; Economic aspects; Economic growth; Income; Water management; Water resources development; Water harvesting; Water supply; Public policy; Agricultural production; Developing countries; Public-private cooperation; History; Case studies; River basins; Crop production; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Farm Management; Financial Economics; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Production Economics; Public Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.

Ano: 2008

URL: http://purl.umn.edu/118411

A COMPARATIVE ESTIMATION OF THE COUNTRY REGIONS’ DEVELOPMENT STATE

A COMPARISON OF ALTERNATIVE PROCEDURES FOR CALCULATING THE RATE OF RETURN TO AGRICULTURAL RESEARCH USING THE PRODUCTION FUNCTION APPROACH

Baliuk, Sviatlana.

The article studies issue of a comparative estimation of the country regions’ development level. The author offers a set of indicators for defining competitive advantages and drawbacks of social and economic development of territories on the basis of integrated estimations. The basis of the author’s approach is a principle of extraction of the regional rent in modern conditions.

Tipo: Journal Article

Palavras-chave: Region; Regional economic development; Rent.; Research and Development/Tech Change/Emerging Technologies; R11.

Ano: 2009

URL: http://purl.umn.edu/94566

Davis, Jeffrey S..

The aim of this paper is to test whether the marginal internal rate of return (MIRR) to research and extension estimates are sensitive to the estimation procedure used to find them. To achieve this, a summary of the previously used estimation procedures is made. Following this a cross section aggregate production function estimate is developed for the U.S. in 1964. The parameter estimates from this model are used to calculate the MIRR's using the different estimation procedures.

A COMPARISON OF PROCEDURES FOR ESTIMATING RETURNS TO RESEARCH USING PRODUCTION FUNCTIONS

Palavras-chave: Research and Development/Tech Change/Emerging Technologies.

Ano: 1979

URL: http://purl.umn.edu/13673

A Comparison of Response Surface and Factorial Designs in Agricultural Research

Davis, Jeffrey S..

The production function approach has been one of the two main ex-post procedures used to estimate the rate of return to agricultural research. A critical part of estimating the marginal internal rate of return (MIRR) is the procedure adopted to spread the benefits of research through time. Past studies using this approach have given only brief consideration to this computational procedure. The objective in this study was to review the different computational procedures used and, then, using cross-section production function estimates for U.S. agriculture, determine whether the MIRR estimates are sensitive to the computational procedure used. The results from this comparison indicate a large range in the estimates. The implication, then, is that careful...

Tipo: Journal Article

Palavras-chave: Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.

Ano: 1981

URL: http://purl.umn.edu/22632

Williams, Robert J.; Baker, J.R..

The use of response surface designs in preference to factorial designs in agriculture has become widely discussed and recommended. This paper simulates data for comparable response surface and factorial designs and uses this to demonstrate the similarities between the designs and their analyses and at the same time to point out some of the customary differences in their analyses. More particularly, it aims to show: (a) that for any design a reduction in the number of plots sown reduces the reliability of the results, and (b) that both a response surface design and a factorial design allow the calculation of estimated equations of response surfaces.

Tipo: Journal Article

Palavras-chave: Research and Development/Tech Change/Emerging Technologies.

Ano: 1968

URL: http://purl.umn.edu/9206

A Comparison of Response Surface and Factorial Designs in Agricultural Research: Comment

Anderson, Jock R.; Dillon, John L..

Tipo: Journal Article

Palavras-chave: Research and Development/Tech Change/Emerging Technologies.

Ano: 1969

URL: http://purl.umn.edu/9230

A Comparison of Response Surface and Factorial Designs in Agricultural Research: Reply

Williams, Robert J.; Baker, J.R..

Tipo: Journal Article

Palavras-chave: Research and Development/Tech Change/Emerging Technologies.

Ano: 1969

URL: http://purl.umn.edu/8658

A Computer Simulation Model of Knowledge Management in Small and Medium Agri-Food Enterprises

Martinez Soto, Moises E.; Monroy, Carlos Rodriguez; Fuentes-Pila, Joaquin; Morris Diaz, Anne; Araujo, M. Gil.

System dynamics is an appropriate tool to build management models due to its ease of application in solving unstructured problems. In the twenty-first century the sustainability of organizations is influenced by the way it manages its knowledge. In this sense, knowledge management (KM) represents a strategy that contributes to improving the production supply chain (SC) of the agri-food industry (AFI). The objective of this research is to develop a computer model to simulate the effect of KM on the production of AFI. The methodology applied was that of the system dynamics by using the Vensim PLE ® v. 5.10 software, whose determining indicators were selected through an empirical study of KM in the SC of precooked corn flour industry in Venezuela. The study...

Tipo: Presentation

Palavras-chave: Small and Medium Enterprises; System Dynamics; Supply Chain; Knowledge Management; Food Industry.; Agribusiness; Farm Management; Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods.

Ano: 2011

URL: http://purl.umn.edu/122029

A COMPUTERIZED REMOTE-ACCESS COMMODITY MARKET: TELCOT

A CONTENT ANALYSIS OF SOURCE-MESSAGE HETEROGENEITY IN MASS MEDIA COVERAGE OF AGROBIOTECHNOLOGY

Ethridge, Don E..

Tipo: Journal Article

Palavras-chave: Research and Development/Tech Change/Emerging Technologies.

Ano: 1978

URL: http://purl.umn.edu/30466

Marks, Leonie A.; Kalaitzandonakes, Nicholas G.; Zakharova, Lucy.

In this paper, we use content analysis to examine the use of sources by US and UK newspaper reporters from 1990 to 1999. Positive (benefit) or negative (risk) messages are correlated with the "source" type in order to determine the degree of source-message heterogeneity in media reporting of agrobiotechnology.

A Continuum of Consumer Attitudes Toward Genetically Modified Foods in the United States

Palavras-chave: Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession.

Ano: 2001

URL: http://purl.umn.edu/20555

Ganiere, Pierre; Chern, Wen S.; Hahn, David E..

A national telephone survey was conducted in the United States in April 2002 to study the consumer acceptance of genetically modified (GM) foods. Attitudes toward GM foods were examined through the use of a multiple correspondence analysis (MCA), analyzing the interrelationships among many categorical variables. This method was combined with a cluster analysis to construct a typology of consumers' attitudes. Four distinct classes of attitudes were finally extracted, denoted as: Proponents, Non-Opponents, Moderate Opponents, and Extreme Opponents. It was estimated that only 35% of the surveyed population was opposed to GM foods.

Tipo: Journal Article

Palavras-chave: Consumer acceptance; Correspondence analysis; GM foods; Telephone survey; Consumer/Household Economics; Research and Development/Tech Change/Emerging Technologies.

Ano: 2006

URL: http://purl.umn.edu/10148

A contribuição de P&D Agropecuário para Convergência e Crescimento da Renda Agropecuária no Brasil

Barreto, Ricardo Candéa Sá; Almeida, Eduardo Simões de.

Este artigo estuda o crescimento econômico e a convergência de renda Agropecuária dos estados Brasileiros de 1986 a 2004. Para este fim, utiliza-se um modelo econométrico de efeitos fixos, controlando-se a dependência espacial. Além de comprovar convergência condicional, o modelo econométrico revelou que o crescimento do PIB per capita agropecuário foi afetado por variáveis como capital físico agropecuário, infra-estrutura telefônica, infra-estrutura de armazenagem, crédito rural, número de trabalhadores rurais, e por externalidades espaciais. Além disso, ficou evidenciada a importância de P & D agropecuário para o crescimento e convergência de renda per capita no setor agropecuário e ainda a geração de externalidades espaciais...

A diffusion model for the adoption of agricultural innovations in structured adopting populations

Palavras-chave: Convergência de renda agropecuária; Nova geografia econômica; Modelo de efeitos fixos com dependência espacial; Income convergence; New economic geography; Fixed effect model with spatial dependence; Agricultural Finance; Research and Development/Tech Change/Emerging Technologies; O18; O47; R11; R23.

Ano: 2008

URL: http://purl.umn.edu/108170

McRoberts, Neil; Franke, A.C..

We introduce a new model for examining the dynamics of uptake of technological innovations in agricultural systems, using the adoption of zero-till wheat in the rice-wheat system in Haryana state, India, as a case study. A new equation is derived which describes the dynamics of adoption over time and takes into account the effect of aggregation (e.g. on a spatial and/or cultural basis) in the adopting population on the rate of adoption. The model extends previous phenomenological models by removing the assumption of homogeneity in the non-adopting fraction of the population. We show how factors affecting the per capita rate of adoption can be captured using cognitive mapping and simulate the dynamics of the adoption process.

A Discriminant Analysis of Factors Associated with The Adoption Of Certified Organic Farming By Smallholder Farmers in Kwazulu-Natal, South Africa

Palavras-chave: Bass curve; Adoption; Innovation; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.

Ano: 2008

URL: http://purl.umn.edu/61117

Kisaka-Lwayo, Maggie.

Discriminant analysis was used to identify the characteristics that distinguish between fully-certified organic, partially-certified organic and non-organic farmers in Umbumbulu district, KwaZulu-Natal (KZN), South Africa (SA) during October- November 2004. 200 farmers interviewed were drawn by purposively selecting the 151 members of the Ezemvelo Farmers’ Organisation (EFO), and by random sampling 49 non-organic farmers in wards neighbouring EFO. Results from the two estimated discriminant functions suggested that farmers with higher household sizes, incomes, input costs per hectare and number of chickens owned, locations further from innovators and less risk aversion were more likely to be certified as organic. Household location should be considered in...

A "DISJOINTED INCREMENTALIST'S" APPROACH TO MEASURING RESEARCH BENEFITS AND COSTS

Palavras-chave: Adoption; Organic; Discriminant Analysis; South Africa; Agricultural and Food Policy; Community/Rural/Urban Development; Demand and Price Analysis; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; International Relations/Trade; Labor and Human Capital; Marketing; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.

Ano: 2008

URL: http://purl.umn.edu/52155

Fishel, Walter L..

A Dynamic Adoption Model with Bayesian Learning: Application to the U.S. Soybean Market

Palavras-chave: Research and Development/Tech Change/Emerging Technologies.

Ano: 1971

URL: http://purl.umn.edu/13592

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...

A Dynamic CGE Model of R&D Based Growth in the U.S. Economy: An Experiment Using the New Growth Theory

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

Diao, Xinshen; Roe, Terry L..