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 | Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
29/11/1994 |
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Data da última atualização: |
20/05/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, H. P. dos; ZENTNER, R. P.; SELLES, F.; AMBROSI, I. |
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Afiliação: |
HENRIQUE PEREIRA DOS SANTOS, CNPT; IVO AMBROSI, CNPT. |
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Título: |
Effect of crop rotation on yields, soil chemical characteristics, and economic returns of zero-till barley in southern Brazil. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Soil & Tillage Research, Amsterdam, v. 28, p. 141-158, 1993. |
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Idioma: |
Inglês |
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Conteúdo: |
The severe soil degradation and low income problems of producers in southern Brazil are being attributed to the widespread use of wheat ( Tricticum aestivum L. ) -soybean (Glycine max. (L.) Merr. ) or barley (Hordeum vulgare L. )-soybean double-cropping systems, combined with extensive use of mechanical methods of soil tillage. This 6 year study, which was conducted at Guarapuava in southcentral Paramt, compared the effects of four zero-tillage barley rotations on grain yields, soil chemical characteristics, and economic returns. The rotation treatments included: barley-soybean, barley-soybean- vetch (Vicia sativa L.)--corn (Zea mays L.) (1 year without barley), barley-soybean-flax (Linum usitatissimum L. ) -soybean-vetch-corn ( 2 years without barley), and barley-soybean-flaxsoybean- oat (Arena sativa L. )-soybean-vetch-corn (3 years without barley). Yields of barley in the traditional barley-soybean rotation increased by an average of 9% (range of 4-20% higher) by including other winter crops in the rotation, presumably due to a reduction in diseases and pests. Extending the rotation length beyond one winter without a barley crop provided no additional benefit to barley yields. Yields of soybean were lower in several years when grown after flax due likely to allelopathic effects, and after oat due to problems with proper seed placement under the high crop residue conditions. Soil pH and Al concentration tended to revert to the initial levels within 4 years after application of lime. Soil organic matter increased under all rotations reflecting the large amounts of residues being returned to the soil and the low soil losses under zero-tillage management. Costs of production (expressed in US dollars) were highest for the barley-soybean rotation ($ 464 vs. $ 380 ha-1 for mixed rotations). The most profitable cropping system was the 1 year without barley rotation under most economic situations examined. It was profitable to substitute flax or oat for barley when the price ratios of flax to barley and oat to barley exceeded 1.92 and 0.97, respectively. Similarly, it was profitable to substitute corn for soybean during the summer growing season when the price ratio of corn to soybean exceeded 0.39. The traditional barley-soybean rotation displayed the greatest income variability or riskiness. The study concluded that there is both agronomic and economic merit for area producers to adopt these new production opportunities. MenosThe severe soil degradation and low income problems of producers in southern Brazil are being attributed to the widespread use of wheat ( Tricticum aestivum L. ) -soybean (Glycine max. (L.) Merr. ) or barley (Hordeum vulgare L. )-soybean double-cropping systems, combined with extensive use of mechanical methods of soil tillage. This 6 year study, which was conducted at Guarapuava in southcentral Paramt, compared the effects of four zero-tillage barley rotations on grain yields, soil chemical characteristics, and economic returns. The rotation treatments included: barley-soybean, barley-soybean- vetch (Vicia sativa L.)--corn (Zea mays L.) (1 year without barley), barley-soybean-flax (Linum usitatissimum L. ) -soybean-vetch-corn ( 2 years without barley), and barley-soybean-flaxsoybean- oat (Arena sativa L. )-soybean-vetch-corn (3 years without barley). Yields of barley in the traditional barley-soybean rotation increased by an average of 9% (range of 4-20% higher) by including other winter crops in the rotation, presumably due to a reduction in diseases and pests. Extending the rotation length beyond one winter without a barley crop provided no additional benefit to barley yields. Yields of soybean were lower in several years when grown after flax due likely to allelopathic effects, and after oat due to problems with proper seed placement under the high crop residue conditions. Soil pH and Al concentration tended to revert to the initial levels within 4 years after applicatio... Mostrar Tudo |
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Palavras-Chave: |
Rotação. |
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Thesagro: |
Cevada; Plantio Direto. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03063naa a2200193 a 4500
001 1824208
005 2025-05-20
008 1993 bl uuuu u00u1 u #d
100 1 $aSANTOS, H. P. dos
245 $aEffect of crop rotation on yields, soil chemical characteristics, and economic returns of zero-till barley in southern Brazil.$h[electronic resource]
260 $c1993
520 $aThe severe soil degradation and low income problems of producers in southern Brazil are being attributed to the widespread use of wheat ( Tricticum aestivum L. ) -soybean (Glycine max. (L.) Merr. ) or barley (Hordeum vulgare L. )-soybean double-cropping systems, combined with extensive use of mechanical methods of soil tillage. This 6 year study, which was conducted at Guarapuava in southcentral Paramt, compared the effects of four zero-tillage barley rotations on grain yields, soil chemical characteristics, and economic returns. The rotation treatments included: barley-soybean, barley-soybean- vetch (Vicia sativa L.)--corn (Zea mays L.) (1 year without barley), barley-soybean-flax (Linum usitatissimum L. ) -soybean-vetch-corn ( 2 years without barley), and barley-soybean-flaxsoybean- oat (Arena sativa L. )-soybean-vetch-corn (3 years without barley). Yields of barley in the traditional barley-soybean rotation increased by an average of 9% (range of 4-20% higher) by including other winter crops in the rotation, presumably due to a reduction in diseases and pests. Extending the rotation length beyond one winter without a barley crop provided no additional benefit to barley yields. Yields of soybean were lower in several years when grown after flax due likely to allelopathic effects, and after oat due to problems with proper seed placement under the high crop residue conditions. Soil pH and Al concentration tended to revert to the initial levels within 4 years after application of lime. Soil organic matter increased under all rotations reflecting the large amounts of residues being returned to the soil and the low soil losses under zero-tillage management. Costs of production (expressed in US dollars) were highest for the barley-soybean rotation ($ 464 vs. $ 380 ha-1 for mixed rotations). The most profitable cropping system was the 1 year without barley rotation under most economic situations examined. It was profitable to substitute flax or oat for barley when the price ratios of flax to barley and oat to barley exceeded 1.92 and 0.97, respectively. Similarly, it was profitable to substitute corn for soybean during the summer growing season when the price ratio of corn to soybean exceeded 0.39. The traditional barley-soybean rotation displayed the greatest income variability or riskiness. The study concluded that there is both agronomic and economic merit for area producers to adopt these new production opportunities.
650 $aCevada
650 $aPlantio Direto
653 $aRotação
700 1 $aZENTNER, R. P.
700 1 $aSELLES, F.
700 1 $aAMBROSI, I.
773 $tSoil & Tillage Research, Amsterdam$gv. 28, p. 141-158, 1993.
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| 2. |  | BATISTA, D. da C.; ANDRADE, J. N; BARBOSA, M. A. G.; MAGALHÃES, R. P. Sobrevivência de fitopatógenos em restos de cultura da mangueira expostos a radiação solar. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 25.; REUNIÃO ANUAL DA SOCIEDADE INTERAMERICANA DE HORTICULTURA TROPICAL, 63., 2017, Porto Seguro. Grandes desafios, ciência e conhecimento para inovação.Porto Seguro: SBF: ISTH: SBFPO: ABH, 2017.| Tipo: Resumo em Anais de Congresso |
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| Biblioteca(s): Embrapa Semiárido. |
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| 5. | | BATISTA, D. da C.; RIBEIRO JUNIOR, P. M.; BARBOSA, M. A. G.; ANDRADE, J. N. de; TERAO, D. Doenças da mangueira. Informe Agropecuário, Belo Horizonte, v. 37, n. 290, p. 82-91, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
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| 7. | | ANDRADE, J. N. de; RODRIGUES, C. dos A.; FARAIS, J. W. de S.; BARBOSA, M. A. G.; BATISTA, D. da C. Fungicidas para proteção contra Neofusicoccum parvum em ferimentos de podas em mangueira. In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA SEMIÁRIDO, 11., 2016, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2016. p. 41-45. (Embrapa Semiárido. Documentos, 271).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 8. | | ANDRADE, J. N. de; RODRIGUES, C. dos A.; FARIAS, J. W. de S.; BARBOSA, M. A. G.; BATISTA, D. da C. Infecções de Botryosphaeriaceae em gemas florais e ocorrência da podridão-peduncular em manga. In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA SEMIÁRIDO, 11., 2016, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2016. p. 35-40. (Embrapa Semiárido. Documentos, 271).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 9. | | AZEVEDO, L. C. de; REIS, M. M.; PEREIRA, G. E.; ROCHA, G. O. da; SILVA, L. A.; ANDRADE, J. B. de. A liquid chromatographic method optimization for the assessment of low and high molar mass carbonyl compounds in wines. Journal of Separation Science, Weinheim, v. 32, p. 3432-3440, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 10. | | MEDEIROS, R.; ANDRADE, J.; RAMOS, D.; MOURA, M. S. B. de; PÉREZ-MARIN, a. m.; SANTOS, C. A. C. dos; SILVA, B. B. da; CUNGA, J. Remote sensing phenology of the brazilian Caatinga and its environmental drivers. Remote Sensing, v. 14, n. 11, 2637, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 11. | | NUNES, F. C.; CUNHA, T. J. F.; MAFRA, A. L.; SILVA, E. F.; BARBOSA, R. M.; UCHA, J. M.; BOAS, G. S. V.; ANDRADE, J. J. S.; PEREIRA, S. C. R. A.; SANTANA, R. O. Gênese, evolução e relações pedogenéticas entre solos vermelhos e amarelos dos tabuleiros costeiros no litoral da Bahia. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 31., 2007, Gramado. Conquistas e desafios da ciência do solo brasileira: livro de resumos... Gramado: UFRGS: SBCS, 2007. p. 239.| Tipo: Resumo em Anais de Congresso |
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| 12. | | RAMOS, D. M.; ANDRADE, J. M.; ALBERTON, B. C.; MOURA, M. S. B. de; DOMINGUES, T. F.; NEVES, N.; LIMA, J. R. S.; SOUZA, R.; SOUZA, E.; SILVA, J. R.; SANTO, M. M. E.; MORELLATO, L. P. C.; CUNHA, J. Multiscale phenology of seasonally dry tropical forests in an aridity gradient. Frontiers in Environmental Sciience, v. 11, 1275844, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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| Registros recuperados : 12 | |
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