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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
04/02/2014 |
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Data da última atualização: |
21/03/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CARVALHO, G. D.; CORRÊA, R. S.; MADARI, B. E.; SANTOS, A. B. dos; SILVA, M. A. S. da. |
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Afiliação: |
GLAUCILENE DUARTE CARVALHO, doutoranda UFG; RUBIA SANTOS CORRÊA, mestranda UFG; BEATA EMOKE MADARI, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF; MELLISSA ANANIAS SOLER DA SILVA, CNPAF. |
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Título: |
Perda de nitrogênio por emissão de óxido nitroso em várzea tropical sob cultivo de arroz irrigado. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 8., 2013, Santa Maria. Avaliando cenários para a produção sustentável de arroz: anais. Santa Maria: UFSM; Porto Alegre: Sosbai, 2013. |
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Volume: |
v.2. |
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Páginas: |
p. 940-943. |
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Idioma: |
Português |
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Conteúdo: |
Teve o objetivo de estimar a perda de nitrogênio, na forma de óxido nitroso, derivada da fertilização nitrogenada com ureia em cultivo de arroz irrigado em várzea tropical usando clorofilômetro na racionalização de nitrogênio. |
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Palavras-Chave: |
Clorofilômetro. |
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Thesagro: |
Arroz irrigado; Fertilizante nitrogenado; Oryza sativa; Óxido. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/96347/1/perda.pdf
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Marc: |
LEADER 01085nam a2200241 a 4500
001 1978487
005 2023-03-21
008 2013 bl uuuu u00u1 u #d
100 1 $aCARVALHO, G. D.
245 $aPerda de nitrogênio por emissão de óxido nitroso em várzea tropical sob cultivo de arroz irrigado.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 8., 2013, Santa Maria. Avaliando cenários para a produção sustentável de arroz: anais. Santa Maria: UFSM; Porto Alegre: Sosbai$c2013
300 $ap. 940-943. v.2.
490 $vv.2.
520 $aTeve o objetivo de estimar a perda de nitrogênio, na forma de óxido nitroso, derivada da fertilização nitrogenada com ureia em cultivo de arroz irrigado em várzea tropical usando clorofilômetro na racionalização de nitrogênio.
650 $aArroz irrigado
650 $aFertilizante nitrogenado
650 $aOryza sativa
650 $aÓxido
653 $aClorofilômetro
700 1 $aCORRÊA, R. S.
700 1 $aMADARI, B. E.
700 1 $aSANTOS, A. B. dos
700 1 $aSILVA, M. A. S. da
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
11/10/2011 |
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Data da última atualização: |
21/11/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GONZALEZ, C.; PÉREZ, S.; CARDOSO, C. E. L.; ANDRADE, R.; JOHNSON, N. |
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Afiliação: |
CAROLINA GONZALEZ, CIAT-IFPRI; SALOMÓN PÉREZ, CIAT; CARLOS ESTEVAO LEITE CARDOSO, CNPMF; ROBERT ANDRADE, CIAT; NANCY JOHNSON, ILRI. |
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Título: |
Analysis of difussion strategies in northeeast Brazil for new cassava varieties with new improved nutritional quality. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: REUNIÃO DE BIOFORTIFICAÇÃO NO BRASIL, 4., 2011. Teresina. Palestras e resumos... Rio de Janeiro: Embrapa Agroindústria de Alimentos; Teresina: Embrapa Meio-Norte, 2011. 1 CD-ROM. Coordenadores: Marília Regini Nutti, Maurisrael de Moura Rocha. |
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Páginas: |
4 p. |
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Idioma: |
Inglês |
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Conteúdo: |
In 2006, Embrapa, supported by the HarvestPlus Program and CIAT released four yellow varieties with improved levels of provitamin A: BRS Dourada, BRS Gema de Ovo, Amarelo I and Amarelo II. For the diffusion process two strategies were used: 1) a participatory research approach with farmers and 2) public awareness raising activities. To evaluate the results of these two diffusion strategies, a socioeconomic analysis was carried out through two surveys applied in NE Brazil, one with producers involve in the participatory research process (Group 1) and the second with producers who requested stakes (seed) via telephone or mail, following the Launching Event (Group 2). For data analysis, a logit model and a Multiple Correspondence Analysis (MCA) were implemented. A significant finding was the large gap between actual early adoption rates of Group 1 (62.5%) and Group 2 (15.0%) in comparison with the potential adoption rates of the groups (62.1% and 64% respectively). This difference in early adoption rate for Group 2, compared to Groups 1 could be explained, in great part, by the lack of availability of seeds of the new varieties. Results showed that several strategies used for diffusion might be successful, each with its own advantages and disadvantages. Within the first strategy process the factors found to enhance adoption rates were: awareness of the new varieties? advantages; public entities as the main information sources; and involvement in participatory research. Within the second strategy trends were found between adoption rates and producer characteristics including: ownership of land; middle-level income; advance education level; and use of information mediums, namely the Internet. In the case of the second strategy, a lack of seeds was one of the main factors limiting the adoption process Currently a new study about household perceptions toward some crops (bean, chickpea, sweet potato, cassava and corn) with better nutritional qualities is developing in Sergipe. MenosIn 2006, Embrapa, supported by the HarvestPlus Program and CIAT released four yellow varieties with improved levels of provitamin A: BRS Dourada, BRS Gema de Ovo, Amarelo I and Amarelo II. For the diffusion process two strategies were used: 1) a participatory research approach with farmers and 2) public awareness raising activities. To evaluate the results of these two diffusion strategies, a socioeconomic analysis was carried out through two surveys applied in NE Brazil, one with producers involve in the participatory research process (Group 1) and the second with producers who requested stakes (seed) via telephone or mail, following the Launching Event (Group 2). For data analysis, a logit model and a Multiple Correspondence Analysis (MCA) were implemented. A significant finding was the large gap between actual early adoption rates of Group 1 (62.5%) and Group 2 (15.0%) in comparison with the potential adoption rates of the groups (62.1% and 64% respectively). This difference in early adoption rate for Group 2, compared to Groups 1 could be explained, in great part, by the lack of availability of seeds of the new varieties. Results showed that several strategies used for diffusion might be successful, each with its own advantages and disadvantages. Within the first strategy process the factors found to enhance adoption rates were: awareness of the new varieties? advantages; public entities as the main information sources; and involvement in participatory research. Within t... Mostrar Tudo |
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Thesagro: |
Mandioca. |
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Thesaurus NAL: |
cassava. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/43321/1/ANALYSIS-Carlos-Estevao.pdf
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Marc: |
LEADER 02767nam a2200193 a 4500
001 1902925
005 2011-11-21
008 2011 bl uuuu u00u1 u #d
100 1 $aGONZALEZ, C.
245 $aAnalysis of difussion strategies in northeeast Brazil for new cassava varieties with new improved nutritional quality.
260 $aIn: REUNIÃO DE BIOFORTIFICAÇÃO NO BRASIL, 4., 2011. Teresina. Palestras e resumos... Rio de Janeiro: Embrapa Agroindústria de Alimentos; Teresina: Embrapa Meio-Norte, 2011. 1 CD-ROM. Coordenadores: Marília Regini Nutti, Maurisrael de Moura Rocha.$c2011
300 $a4 p.
520 $aIn 2006, Embrapa, supported by the HarvestPlus Program and CIAT released four yellow varieties with improved levels of provitamin A: BRS Dourada, BRS Gema de Ovo, Amarelo I and Amarelo II. For the diffusion process two strategies were used: 1) a participatory research approach with farmers and 2) public awareness raising activities. To evaluate the results of these two diffusion strategies, a socioeconomic analysis was carried out through two surveys applied in NE Brazil, one with producers involve in the participatory research process (Group 1) and the second with producers who requested stakes (seed) via telephone or mail, following the Launching Event (Group 2). For data analysis, a logit model and a Multiple Correspondence Analysis (MCA) were implemented. A significant finding was the large gap between actual early adoption rates of Group 1 (62.5%) and Group 2 (15.0%) in comparison with the potential adoption rates of the groups (62.1% and 64% respectively). This difference in early adoption rate for Group 2, compared to Groups 1 could be explained, in great part, by the lack of availability of seeds of the new varieties. Results showed that several strategies used for diffusion might be successful, each with its own advantages and disadvantages. Within the first strategy process the factors found to enhance adoption rates were: awareness of the new varieties? advantages; public entities as the main information sources; and involvement in participatory research. Within the second strategy trends were found between adoption rates and producer characteristics including: ownership of land; middle-level income; advance education level; and use of information mediums, namely the Internet. In the case of the second strategy, a lack of seeds was one of the main factors limiting the adoption process Currently a new study about household perceptions toward some crops (bean, chickpea, sweet potato, cassava and corn) with better nutritional qualities is developing in Sergipe.
650 $acassava
650 $aMandioca
700 1 $aPÉREZ, S.
700 1 $aCARDOSO, C. E. L.
700 1 $aANDRADE, R.
700 1 $aJOHNSON, N.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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