Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 267
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
A Binary Logit Analysis of Factors Impacting Adoption of Genetically Modified Cotton AgEcon
Banerjee, Swagata (Ban); Martin, Steven W..
Agricultural Resource Management Survey (ARMS) data for 2003 were used to estimate two binary logit models for two definitions of genetically modified (GM) cottonseed adoption. Results indicate conservation tillage did not positively affect adoption of GM cotton with either of these definitions, while adoption of GM cotton in the previous year did. Refuge cotton also did not affect these adoption decisions for the study year.
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural Resource Management Survey (ARMS); Binary logit model; Conservation tillage; Cotton; Genetically modified seed; Herbicide-resistant cotton; Jackknife procedure; Refuge cotton; Stacked-gene cotton; Technology adoption; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/37140
Imagem não selecionada

Imprime registro no formato completo
A Binary Logit Estimation of Factors Affecting Adoption of GPS Guidance Systems by Cotton Producers AgEcon
Banerjee, Swagata (Ban); Martin, Steven W.; Roberts, Roland K.; Larkin, Sherry L.; Larson, James A.; Paxton, Kenneth W.; English, Burton C.; Marra, Michele C.; Reeves, Jeanne M..
Binary logit analysis was used to identify the factors influencing adoption of Global Positioning System (GPS) guidance systems by cotton farmers in 11 Mid-south and Southeastern states. Results indicate that adoption was more likely by those who had already adopted other precision-farming practices and had used computers for farm management. In addition, younger and more affluent farmers were more likely to adopt. Farmers with larger farms and with relatively high yields were also more likely to adopt. Education was not a significant factor in a farmer’s decision to adopt GPS guidance systems.
Tipo: Journal Article Palavras-chave: Binary logit; Cotton; GPS guidance system; Marginal effect; Precision farming; Technology adoption; Agribusiness; Crop Production/Industries; Q2; Q16; Q19; Q20; Q24.
Ano: 2008 URL: http://purl.umn.edu/45530
Imagem não selecionada

Imprime registro no formato completo
A Case Study of Regulation in Zambia’s Cotton Sector. AgEcon
Tschirley, David L.; Kabwe, Stephen.
Cotton is an unquestioned success of Zambia’s turn towards a market economy. After privatization in late 1994, seed cotton production rose from 32,000 metric tons (mt) to about 180,000 mt a decade later (three-year averages centered on 1994 and 2005). The number of farmers involved in the sector grew similarly, yields trended upwards (though slowly), and the country dramatically improved the quality of its lint, becoming the outstanding performer in Sub-Saharan Africa in this regard by the mid-2000s. Yet the sector has experienced two serious crashes since reform, both involving rampant credit default by farmers supported with seasonal input credit by ginning companies.
Tipo: Working or Discussion Paper Palavras-chave: Zambia; Cotton; Africa; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Food Security and Poverty; International Development; Q10; Q11; Q12.
Ano: 2010 URL: http://purl.umn.edu/62145
Imagem não selecionada

Imprime registro no formato completo
A Comprehensive Evaluation of USDA Cotton Forecasts AgEcon
Isengildina-Massa, Olga; MacDonald, Stephen; Xie, Ran.
This study evaluates all USDA cotton supply and demand estimates for the United States and China (including unpublished price forecasts) from 1985/86 through 2009/10 for accuracy and efficiency. Results reveal that at every stage of the forecasting cycle forecast smoothing was the most widespread and persistent type of inefficiency observed in most U.S. variables. Correlation with past errors indicated the tendency to repeat past errors in most cases. Tendency to overestimate growth was also found. Bias was uncommon and limited to several cases of overestimation of China’s exports and U.S. price and underestimation of China’s domestic use. While forecasts of China’s imports and endings stocks improved, U.S. price and ending stock forecast errors became...
Tipo: Article Palavras-chave: Cotton; Forecast accuracy; Forecast efficiency; Forecast evaluation; Forecast smoothing; USDA forecasts; Agricultural Finance; Crop Production/Industries.
Ano: 2012 URL: http://purl.umn.edu/122314
Imagem não selecionada

Imprime registro no formato completo
A Cost Function Analysis of Crop Insurance Moral Hazard and Agricultural Chemical Use AgEcon
Liang, Yan; Coble, Keith H..
This paper employs a cost function analysis method to investigate the existence of moral hazard in cotton buy-up insurance. The trans-log cost function estimates of the own-price elasticity of fertilizer, herbicide, and insecticide is -0.222, -0.143, and -0.121, respectively for Mississippi cotton production. Our results found statistically significant relationship between per acre direct cost and cotton buy-up insurance for year 2001 and 2005 in Mississippi. Our results also indicate that moral hazard can either decrease or increase agricultural input usage depending specific production condition in an individual year. But in general the results support effects smaller than anecdotal evidence would suggest.
Tipo: Conference Paper or Presentation Palavras-chave: Crop insurance; Moral hazard; Agricultural input use; Cost function analysis; Cotton; Agribusiness; Agricultural and Food Policy; Demand and Price Analysis; Production Economics; Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/49485
Imagem não selecionada

Imprime registro no formato completo
A cotonicultura do Vale do Yuyu, no sudeste bahiano: problemas e potencialidade-resultados de pesquisa 81/82. Infoteca-e
AZEVEDO, D. M. P. de; VIEIRA, D. J..
Caracterizacao da area; Fatores responsaveis pelo nivel tecnico e manutencao da continuidade da exploracao do algodoeiro na regiao; A problematica do algodoeiro; Potencialidade; Papel do CNP.Algodao/EPABA/EMATER-BA; Resultados de pesquisa no Vale do Yuyu nos anos agricolas 1980/81 e 1981/82.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Lagarta da maca; Brasil; Bahia; Sebastiao; Laranjeiras; Malhada; Bom Jesus da Lapa; Riacho de Santana; Palma de Monte Alto; Pest.; Algodão; Heliothis Virescens; Gossypium Hirsutum; Pesquisa; Praga.; Cotton; Research..
Ano: 1982 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262578
Imagem não selecionada

Imprime registro no formato completo
A fibra do algodao nordestino em face as novas tecnologia de fiacao. Infoteca-e
SANTANA, J. C. F. de; FREIRE, E. C.; COSTA, J. N. da; CARVALHO, L. P..
bitstream/item/53389/1/COMTEC38.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Brasil; Nordeste; Paraiba; Fiber.; Algodão; Fiação; Fibra; Gossypium Hirsutum; Tecnologia.; Cotton; Technology.; Spinning.
Ano: 1994 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/266462
Imagem não selecionada

Imprime registro no formato completo
A new Orthotyline Mirid (Heteroptera) from Syria Naturalis
Doesburg, P.H. van.
A new species, Zanchius stami Van Doesburg (Insecta, Heteroptera, Miridae, Orthotylinae) from Syria, Deir-ez-Zor, is described and illustrated. Late eggs taken from the female abdomen have a peculiar chorionic process. It was found living (predaciously?) on cotton plants. It is compared with the closely related Z. alatanus Hoberlandt, 1956. Type specimens are deposited in the Rijksmuseum van Natuurlijke Historie, Leiden, two paratypes in the Národní Muzeum, Praha.
Tipo: Article / Letter to the editor Palavras-chave: Zanchius stami Van Doesburg; Spec. nov.; Heteroptera; Miridae; Orthotylinae; Syria; Cotton; Egg structure; 42.75.
Ano: 1984 URL: http://www.repository.naturalis.nl/record/318271
Imagem não selecionada

Imprime registro no formato completo
A pesquisa algodoeira no nordeste do Brasil. Infoteca-e
FREIRE, E. C.; BARREIRO NETO, M..
Caracterizacao da producao de algodao na regiao setentrional do Brasil; Contribuicao da pesquisa e iniciativa privada a problematica do algodao do nordeste no passado; Desafios atuais; Acoes recentes da pesquisa com o algodao no nordeste; Sugestoes finais.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Brasil; Nordeste; Cultivar.; Algodão; Historia; Gossypium Hirsutum; Pesquisa.; Cotton; History; Research..
Ano: 1983 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262619
Imagem não selecionada

Imprime registro no formato completo
A produtividade de arroz e algodão em função de parâmetros solo e clima no Projeto de Irrigação de São Gonçalo, Souza, PB. Infoteca-e
CORDEIRO, G. G.; VALDIVIESO SALAZAR, C. R.; CARVALLO GUERRA, H. O..
Parcelas indicadoras de producao, foram selecionadas no Projeto de Irrigacao de Sao Goncalo em Souza- PB, para estudar fatores relacionados com o solo e que influem na produtividade de arroz e algodao.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Projeto São Gonçalo; Correlação; Production factor; Natural resource.; Recurso natural; Arroz; Algodão; Irrigação; Produção; Solo.; Cotton; Correlation; Rice..
Ano: 1986 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131825
Imagem não selecionada

Imprime registro no formato completo
A Socio-Economic Survey in the Province of Nampula: Cotton in the Smallholder Economy AgEcon
Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Tipo: Working or Discussion Paper Palavras-chave: Food security; Food policy; Mozambique; Cotton; Crop Production/Industries; Food Security and Poverty; Q18.
Ano: 1991 URL: http://purl.umn.edu/55990
Imagem não selecionada

Imprime registro no formato completo
A tecnologia da fibra das novas cultivares para o nordeste: algodao 6M e 7MH e para o cerrado de Mato Grosso, CNPA ITA 96. Infoteca-e
SANTANA, J. C. F. de; FREIRE, E. C.; SOUZA, J. G. de; ANDRADE, F. P. de; FARIAS, F. J. C.; WANDERLEY, M. J. R.; LIMA, M. do S. N.; ANDRADE, J. E. O..
bitstream/item/33311/1/CNPA-DOCUMENTOS-38-A-TECNOLOGIA-DA-FIBRA-DAS-NOVAS-CULTIVARES-PARA-O-NORDESTE-ALGODAO-6M-E-7MH-E-.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Cultivares-6M; 7MH; Brasil; Nordeste; Mato Grosso do Sul; Fiber.; Algodão; Fibra; Gossypium Hirsutum; Tecnologia.; Cotton; Technology..
Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/270965
Imagem não selecionada

Imprime registro no formato completo
Adoption and Abandonment of Precision Soil Sampling in Cotton Production AgEcon
Walton, Jonathan C.; Lambert, Dayton M.; Roberts, Roland K.; Larson, James A.; English, Burton C.; Larkin, Sherry L.; Martin, Steven W.; Marra, Michele C.; Paxton, Kenneth W.; Reeves, Jeanne M..
Adoption of precision agriculture technology has arrived considerable attention, but abandonment has received little. This paper identified factors motivating adoption and abandonment of precision soils sampling in cotton. Younger producers who farmed more cotton area, owned more of their cropland, planted more non-cotton area, or used a computer were more likely to adopt precision soil sampling. Those with more cotton area or who owned livestock were more likely to abandon, while those who used precision soil sampling longer, or used variable-rate fertilizer application were less likely to abandon precision soil sampling.
Tipo: Journal Article Palavras-chave: Abandonment; Adoption; Cotton; Precision; Agriculture; Soil sampling; Southeastern United States; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/46556
Imagem não selecionada

Imprime registro no formato completo
Adoption of Best Management Practices to Control Weed Resistance By Cotton, Corn, and Soybean Growers AgEcon
Frisvold, George B.; Hurley, Terrance M.; Mitchell, Paul D..
This study examined adoption of ten best management practices (BMPs) to control weed resistance to herbicides. Using data from a survey of 1,205 U.S. cotton, corn, and soybean growers, count data models were estimated to explain the total number of practices frequently adopted. Ordered probit regressions were used to explain the frequency of individual BMP adoption. Growers practicing a greater number of BMPs frequently (a) had more education, but less farming experience; (b) grew cotton, (c) expected higher yields relative to the county average; and (d) farmed in counties with a lower coefficient of variation (CV) for yield of their primary crop. Yield expectations and variability were significant predictors of the frequency of adoption of individual...
Tipo: Conference Paper or Presentation Palavras-chave: Weeds; Herbicide; Resistance management; Corn; Cotton; Soybeans; Adoption; Crop Production/Industries; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q12; Q16.
Ano: 2009 URL: http://purl.umn.edu/49432
Imagem não selecionada

Imprime registro no formato completo
ADOPTION OF BIOENGINEERED CROPS AgEcon
Fernandez-Cornejo, Jorge; McBride, William D..
Use of crop biotechnology products, such as genetically engineered (GE) crops with input traits for pest management, has risen dramatically since commercial approval in the mid-1990s. This report addresses several of the economic dimensions regarding farmer adoption of bioengineered crops, including herbicidetolerant and insect-resistant varieties. In particular, the report examines: (1) the extent of adoption of bioengineered crops, their diffusion path, and expected adoption rates over the next few years; (2) factors affecting the adoption of bioengineered crops; and (3) farm-level impacts of the adoption of bioengineered crops. Data used in the analysis are mostly from USDA surveys.
Tipo: Report Palavras-chave: Biotechnology; Technology adoption; Genetic engineering; Pest management; Financial effects; Tillage; Herbicide-tolerant crops; Bt crops; Corn; Soybeans; Cotton; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2002 URL: http://purl.umn.edu/33957
Imagem não selecionada

Imprime registro no formato completo
Adoption of Conservation-Tillage Methods and Genetically Modified Cotton AgEcon
Roberts, Roland K.; English, Burton C.; Gao, Qi; Larson, James A..
Adoption of herbicide-tolerant cotton and conservation tillage may be simultaneously related. Bayes' theorem and a two-equation logit model were used to test the simultaneity hypothesis. Evidence for Tennessee suggests that adoption of these technologies reduced residual herbicide use and soil erosion more than if adoption of these technologies were independent.
Tipo: Conference Paper or Presentation Palavras-chave: Bayes' theorem; Conservation tillage; Cotton; Genetically modified crops; Herbicide tolerant crops; Simultaneous logit model; Technology adoption; Crop Production/Industries; Q12; Q16; Q24; O33.
Ano: 2005 URL: http://purl.umn.edu/35293
Imagem não selecionada

Imprime registro no formato completo
Adoption of Conservation-Tillage Practices in Cotton Production AgEcon
Banerjee, Swagata (Ban); Martin, Steven W.; Roberts, Roland K.; Larson, James A.; Hogan, Robert J., Jr.; Johnson, Jason L.; Paxton, Kenneth W.; Reeves, Jeanne M..
Replaced with revised version of paper 10/23/07.
Tipo: Conference Paper or Presentation Palavras-chave: Conservation tillage; Cotton; Genetically modified seed; Herbicide-resistant cotton; Stacked-gene cotton; Simultaneous logit model; Single-equation logit model; Technology adoption; Crop Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/34842
Imagem não selecionada

Imprime registro no formato completo
Adoption of Site-Specific Information and Variable-Rate Technologies in Cotton Precision Farming AgEcon
Roberts, Roland K.; English, Burton C.; Larson, James A.; Cochran, Rebecca L.; Goodman, W. Robert; Larkin, Sherry L.; Marra, Michele C.; Martin, Steven W.; Shurley, W. Donald; Reeves, Jeanne M..
Probit analysis identified factors that influence the adoption of precision farming technologies by Southeastern cotton farmers. Younger, more educated farmer who operated larger farms and were optimistic about the future of precision farming were most likely to adopt site-specific information technology. The probability of adopting variable-rate input application technology was higher for younger farmers who operated larger farms, owned more of the land they farmed, were more informed about the costs and benefits of precision farming, and were optimistic about the future of precision farming. Computer use was not important, possibly because custom hiring shifts the burden of computer use to agribusiness firms.
Tipo: Journal Article Palavras-chave: Cotton; Grid soil sampling; Precision farming; Probit; Sample selection; Site-specific information; Technology adoption; Variable-rate application; D21; Q12; Q16.
Ano: 2004 URL: http://purl.umn.edu/42943
Imagem não selecionada

Imprime registro no formato completo
Adoption of Variability Detection and Variable Rate Application Technologies by Cotton Farmers in Southern United States AgEcon
Nair, Shyam; Wang, Chenggang; Segarra, Eduardo; Belasco, Eric J.; Velandia, Margarita M.; Reeves, Jeanne M..
A nested logit model was used to analyze the 2009 Southern Cotton Precision Farming Survey to study the impact of farmer and farm characteristics on the adoption of Variability Detection Technologies (VDT) and the adoption of Variability Rate application Technology (VRT) conditioned on the type of the VDT chosen. The results showed that the farm size and exposure to extension activities are important factors affecting the choice of VDTs. The farmers adopting both soil and plant based VDTs are more likely to adopt VRT. The probability of adoption of VRTs was lower for Texas cotton farmers irrespective of the type of VDT adopted. In general, younger, more educated farmers who use computers for farming operations are more likely to adopt VRT when they...
Tipo: Conference Paper or Presentation Palavras-chave: Precision Agriculture; Technology Adoption; Cotton; Crop Production/Industries; Farm Management; Research and Development/Tech Change/Emerging Technologies; O33; Q16.
Ano: 2011 URL: http://purl.umn.edu/103567
Imagem não selecionada

Imprime registro no formato completo
Adubação nitrogenada em cobertura e regulador de crescimento na cultura do algodoeiro em sistema plantio direto. Infoteca-e
LAMAS, F. M.; STAUT, L. A..
bitstream/item/39707/1/COT-05-1999.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Growth control; Direct sowing.; Algodão; Adubação; Cerrado; Gossypium Hirsutum; Nitrogênio; Plantio Direto; Regulador de Crescimento.; Cotton; Fertilizers; Nitrogen..
Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/242153
Registros recuperados: 267
Primeira ... 123456789 ... 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