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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
21/10/2005 |
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Data da última atualização: |
14/06/2023 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
LOPES FILHO, F.; POSSIDIO, P. L. de; WANDERLEY, L. J. G. |
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Afiliação: |
FRANCISCO LOPES FILHO, CPATSA; POMPILIO LUSTOSA DE POSSIDIO, CPATSA; LUIS JORGE G. WANDERLEY, IPA. |
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Título: |
Produção de sementes de melancia sob condições irrigadas no Sub-médio São Francisco. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Petrolina: EMBRAPA-CPATSA, 1977. |
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Páginas: |
10 p. |
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Idioma: |
Português |
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Conteúdo: |
o objetivo deste trabalho foi estudar o comportamento de três cultivares de melancia (Citrulus vulgaris L.) visando a produção de sementes, sob condições irrigadas no Sub-Médio São Francisco. |
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Palavras-Chave: |
Produção de semente; Submédio São Francisco; Watermelon. |
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Thesagro: |
Irrigação; Melancia; Semente; Variedade. |
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Thesaurus Nal: |
Watermelons. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146197/1/ID-32232.pdf
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Marc: |
LEADER 00854nam a2200241 a 4500
001 1156032
005 2023-06-14
008 1977 bl uuuu u0uu1 u #d
100 1 $aLOPES FILHO, F.
245 $aProdução de sementes de melancia sob condições irrigadas no Sub-médio São Francisco.
260 $aPetrolina: EMBRAPA-CPATSA$c1977
300 $a10 p.
520 $ao objetivo deste trabalho foi estudar o comportamento de três cultivares de melancia (Citrulus vulgaris L.) visando a produção de sementes, sob condições irrigadas no Sub-Médio São Francisco.
650 $aWatermelons
650 $aIrrigação
650 $aMelancia
650 $aSemente
650 $aVariedade
653 $aProdução de semente
653 $aSubmédio São Francisco
653 $aWatermelon
700 1 $aPOSSIDIO, P. L. de
700 1 $aWANDERLEY, L. J. G.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
21/12/2020 |
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Data da última atualização: |
23/03/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RIBAS, G. G.; ZANON, A. J.; STRECK, N. A.; PILECCO, I. B.; SOUZA, P. M. de; HEINEMANN, A. B.; GRASSINI, P. |
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Afiliação: |
GIOVANA GHISLENI RIBAS, UNIVERSIDADE FEDERAL DE SANTA MARIA; ALENCAR JUNIOR ZANON, UNIVERSIDADE FEDERAL DE SANTA MARIA; NEREU AUGUSTO STRECK, UNIVERSIDADE FEDERAL DE SANTA MARIA; ISABELA BULEGON PILECCO, UNIVERSIDADE FEDERAL DE SANTA MARIA; PABLO MAZZUCO DE SOUZA, IRGA; ALEXANDRE BRYAN HEINEMANN, CNPAF; PATRICIO GRASSINI, UNIVERSITY OF NEBRASKA. |
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Título: |
Assessing yield and economic impact of introducing soybean to the lowland rice system in southern Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agricultural Systems, v. 188, article 103036, Mar. 2021. |
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ISSN: |
0308-521X |
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DOI: |
https://doi.org/10.1016/j.agsy.2020.103036 |
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Idioma: |
Inglês |
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Conteúdo: |
Lowland irrigated rice in southern Brazil is typically grown in monoculture, with one rice crop per year. However, during the past 10 years, some farmers have switched from the traditional continuous rice system to a 2-y soybean-rice rotation. Here we performed an on-farm assessment about the impact of introducing soybean to the lowland continuous rice system in southern Brazil. The goal was to determine how the soybean-rice rotation compared to continuous rice in terms of yield and profit. We used farmer-reported survey data collected from lowland rice-based systems in southern Brazil over three growing seasons. Cropping-system yield, profit, and return-to-inputs were compared between fields following continuous rice versus soybean?rice rotation. In addition to the survey data analysis, we evaluated the long-term economic impact of adopting the rotation using a combination of a crop simulation model and Monte-Carlo stochastic modeling. Average rice yield was 26% higher in the rotation compared to continuous rice. Besides the rotation effect, sowing date, N fertilizer, and weed management explained most of the field-to-field variability in rice yield. Cropping-system yield and gross income were lower in the soybean-rice rotation than in continuous rice as a result of replacing an irrigated crop (rice) by a water-limited rainfed crop (soybean). Despite that yield penalty, there was no difference in net economic return between the two cropping systems due to lower production costs in soybean-rice rotation compared to continuous rice. The rotation also exhibited smaller labor requirement and higher benefit-to-cost ratio and return to labor than continuous rice. Despite these potential benefits, our long-term analysis indicated higher inter-annual variability and economic risk in the rotation compared to continuous rice. Other factors further constrain adoption of the soybean-rice rotation, including the high risk of growing soybean in fields that are prone to excess water and difficulties to change current farm logistics. Findings from this study are relevant to other rice-based systems in the world looking for opportunities to increase or maintain net profit while reducing costs and/or labor. MenosLowland irrigated rice in southern Brazil is typically grown in monoculture, with one rice crop per year. However, during the past 10 years, some farmers have switched from the traditional continuous rice system to a 2-y soybean-rice rotation. Here we performed an on-farm assessment about the impact of introducing soybean to the lowland continuous rice system in southern Brazil. The goal was to determine how the soybean-rice rotation compared to continuous rice in terms of yield and profit. We used farmer-reported survey data collected from lowland rice-based systems in southern Brazil over three growing seasons. Cropping-system yield, profit, and return-to-inputs were compared between fields following continuous rice versus soybean?rice rotation. In addition to the survey data analysis, we evaluated the long-term economic impact of adopting the rotation using a combination of a crop simulation model and Monte-Carlo stochastic modeling. Average rice yield was 26% higher in the rotation compared to continuous rice. Besides the rotation effect, sowing date, N fertilizer, and weed management explained most of the field-to-field variability in rice yield. Cropping-system yield and gross income were lower in the soybean-rice rotation than in continuous rice as a result of replacing an irrigated crop (rice) by a water-limited rainfed crop (soybean). Despite that yield penalty, there was no difference in net economic return between the two cropping systems due to lower production c... Mostrar Tudo |
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Thesagro: |
Arroz; Arroz Irrigado; Glycine Max; Meio Ambiente; Oryza Sativa; Rotação de Cultura; Sistema de Produção; Soja. |
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Thesaurus NAL: |
Farm profitability; Lowlands; Rice; Soybeans; Yields. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 03275naa a2200373 a 4500
001 2128487
005 2021-03-23
008 2021 bl uuuu u00u1 u #d
022 $a0308-521X
024 7 $ahttps://doi.org/10.1016/j.agsy.2020.103036$2DOI
100 1 $aRIBAS, G. G.
245 $aAssessing yield and economic impact of introducing soybean to the lowland rice system in southern Brazil.$h[electronic resource]
260 $c2021
520 $aLowland irrigated rice in southern Brazil is typically grown in monoculture, with one rice crop per year. However, during the past 10 years, some farmers have switched from the traditional continuous rice system to a 2-y soybean-rice rotation. Here we performed an on-farm assessment about the impact of introducing soybean to the lowland continuous rice system in southern Brazil. The goal was to determine how the soybean-rice rotation compared to continuous rice in terms of yield and profit. We used farmer-reported survey data collected from lowland rice-based systems in southern Brazil over three growing seasons. Cropping-system yield, profit, and return-to-inputs were compared between fields following continuous rice versus soybean?rice rotation. In addition to the survey data analysis, we evaluated the long-term economic impact of adopting the rotation using a combination of a crop simulation model and Monte-Carlo stochastic modeling. Average rice yield was 26% higher in the rotation compared to continuous rice. Besides the rotation effect, sowing date, N fertilizer, and weed management explained most of the field-to-field variability in rice yield. Cropping-system yield and gross income were lower in the soybean-rice rotation than in continuous rice as a result of replacing an irrigated crop (rice) by a water-limited rainfed crop (soybean). Despite that yield penalty, there was no difference in net economic return between the two cropping systems due to lower production costs in soybean-rice rotation compared to continuous rice. The rotation also exhibited smaller labor requirement and higher benefit-to-cost ratio and return to labor than continuous rice. Despite these potential benefits, our long-term analysis indicated higher inter-annual variability and economic risk in the rotation compared to continuous rice. Other factors further constrain adoption of the soybean-rice rotation, including the high risk of growing soybean in fields that are prone to excess water and difficulties to change current farm logistics. Findings from this study are relevant to other rice-based systems in the world looking for opportunities to increase or maintain net profit while reducing costs and/or labor.
650 $aFarm profitability
650 $aLowlands
650 $aRice
650 $aSoybeans
650 $aYields
650 $aArroz
650 $aArroz Irrigado
650 $aGlycine Max
650 $aMeio Ambiente
650 $aOryza Sativa
650 $aRotação de Cultura
650 $aSistema de Produção
650 $aSoja
700 1 $aZANON, A. J.
700 1 $aSTRECK, N. A.
700 1 $aPILECCO, I. B.
700 1 $aSOUZA, P. M. de
700 1 $aHEINEMANN, A. B.
700 1 $aGRASSINI, P.
773 $tAgricultural Systems$gv. 188, article 103036, Mar. 2021.
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