Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
21/12/2020 |
Data da última atualização: |
23/03/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
RIBAS, G. G.; ZANON, A. J.; STRECK, N. A.; PILECCO, I. B.; SOUZA, P. M. de; HEINEMANN, A. B.; GRASSINI, P. |
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. |
Título: |
Assessing yield and economic impact of introducing soybean to the lowland rice system in southern Brazil. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Agricultural Systems, v. 188, article 103036, Mar. 2021. |
ISSN: |
0308-521X |
DOI: |
https://doi.org/10.1016/j.agsy.2020.103036 |
Idioma: |
Inglês |
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 |
Thesagro: |
Arroz; Arroz Irrigado; Glycine Max; Meio Ambiente; Oryza Sativa; Rotação de Cultura; Sistema de Produção; Soja. |
Thesaurus Nal: |
Farm profitability; Lowlands; Rice; Soybeans; Yields. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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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Embrapa Arroz e Feijão (CNPAF) |
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