Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 8
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
ESTIMATING THE DEMAND FOR A NEW TECHNOLOGY: BT COTTON AND INSECTICIDE POLICIES IN THE SOUTHEAST AgEcon
Hubbell, Bryan J.; Marra, Michele C.; Carlson, Gerald A..
Tipo: Conference Paper or Presentation Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2000 URL: http://purl.umn.edu/26016
Imagem não selecionada

Imprime registro no formato completo
INFORMATION QUALITY, TECHNOLOGY DEPRECIATION, AND BT COTTON ADOPTION IN THE SOUTHEAST AgEcon
Marra, Michele C.; Hubbell, Bryan J.; Carlson, Gerald A..
In 1996, Bt cotton became one of the first genetically engineered crops to be available commercially. This study focuses on the various sources and quality of information about Bt cotton profitability available to farmers in the Southeast and assesses the relative importance of such information in the farmers' adoption decisions. A model of the individual decision to adopt is developed to incorporate two recent theories of the role of information quality (the "effective information" hypothesis and the "popularity" hypothesis) as well as the effect of current technology depreciation. The data show some support for all three factors as determinants of adoption.
Tipo: Journal Article Palavras-chave: Crop Production/Industries.
Ano: 2001 URL: http://purl.umn.edu/31158
Imagem não selecionada

Imprime registro no formato completo
TRADE-OFF ANALYSIS OF HERBICIDE WITHDRAWALS ON AGRICULTURAL PRODUCTION AND GROUNDWATER QUALITY AgEcon
Liu, Shiping; Carlson, Gerald A.; Hoag, Dana L..
This study examines the trade-off between agricultural production and groundwater contamination potential for ten potential herbicide cancellations. Theoretical and empirical models are developed for estimating losses in consumer and producer benefits in the agricultural commodity market and changes in groundwater quality. Using corn and soybean production in the southeastern Coastal Plain as a study area, the analysis concludes that (1) effects of herbicide cancellations on groundwater quality can be very significant; (2) a cancellation does not guarantee groundwater quality improvement; (3) effects of a multiple cancellation are different from the summation of the effects of independent cancellations; and (4) weed density has a very strong effect on...
Tipo: Journal Article Palavras-chave: Herbicide cancellations; Corn/soybean supply shifts; Groundwater quality; Crop Production/Industries; Environmental Economics and Policy.
Ano: 1995 URL: http://purl.umn.edu/15330
Imagem não selecionada

Imprime registro no formato completo
CONTROL OF A MOBILE PEST: THE IMPORTED FIRE ANT AgEcon
Carlson, Gerald A..
Tipo: Journal Article Palavras-chave: Crop Production/Industries.
Ano: 1975 URL: http://purl.umn.edu/29514
Imagem não selecionada

Imprime registro no formato completo
BT COTTON REFUGE POLICY AgEcon
Livingston, Michael J.; Carlson, Gerald A.; Fackler, Paul L..
Since cotton producers do not own legal rights to kill insect populations that are susceptible to insecticides, individual producers may have no incentive to account for future, insecticide-resistance productivity losses arising from their pest-management decisions. As a result, the collective actions of producers may increase the rate of resistance development relative to the rate that maximizes social welfare. Concerns regarding insect-pest development of resistance to Bt cotton prompted the Environmental Protection Agency to establish legal limits on the proportion of total acres individual producers may plant, representing the first attempt to regulate the development of insecticide resistance and the first instance of the use of refuge as a policy...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural and Food Policy.
Ano: 2000 URL: http://purl.umn.edu/21850
Imagem não selecionada

Imprime registro no formato completo
Production Economics: Into the 21st Century AgEcon
Carlson, Gerald A..
Tipo: Journal Article Palavras-chave: Agribusiness; Production Economics.
Ano: 1992 URL: http://purl.umn.edu/62326
Imagem não selecionada

Imprime registro no formato completo
THE ROLE OF FARM SIZE AND RESOURCE CONSTRAINTS IN THE CHOICE BETWEEN RISKY TECHNOLOGIES AgEcon
Marra, Michele C.; Carlson, Gerald A..
This paper investigates the relationship between farm size and technology adoption by applying a model recently developed by Just and Zilberman to the choices of a sample of southwestern soybean farmers. The adoption of double cropping soybeans with wheat is evaluated with an expanded model which includes availability of specialized equipment and human capital. It is found that the empirical farm size-technology adoption relationship is consistent with risk aversion and a high covariance of returns between the old and new technologies. Accounting for human and physical capital differences across farms improves the power of the hypothesis tests.
Tipo: Journal Article Palavras-chave: Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 1987 URL: http://purl.umn.edu/32233
Imagem não selecionada

Imprime registro no formato completo
THE ESTIMATION OF COTTON COSTS IN THE SOUTHEAST AgEcon
Hoover, Dale M.; Carlson, Gerald A.; Sutherland, J. Gwyn.
Tipo: Journal Article Palavras-chave: Crop Production/Industries.
Ano: 1972 URL: http://purl.umn.edu/30341
Registros recuperados: 8
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional