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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
08/11/2017 |
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Data da última atualização: |
08/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NORA, D. D.; AMADO, T. J. C; NICOLOSO, R. da S.; GRUHN, E. M. |
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Afiliação: |
DOUGLAS DALLA NORA, UFSM; TELMO JORGE CARNEIRO AMADO, UFSM; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; EDUARDO MÜLLER GRUHN, UFSM. |
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Título: |
Modern high-yielding maize, wheat and soybean cultivars in response to gypsum and lime application on no-till oxisol. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 41, n. e0160504, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Modern maize, wheat, and soybean cultivars are usually characterized by a short cycle, high shoot-root ratio, and high responsiveness to nutrient input. Continuous no-tillage management (NTS) frequently leads to a steep gradient in soil chemical quality with depth, thus decreasing yield under conditions of acid subsoil and water stress. This study aimed to evaluate the effect of gypsum, applied separately or in combination with lime, on the yield of cultivars used in the state of Rio Grande do Sul, Brazil. The study consisted of four experiments conducted on a typic Hapludox under NTS. The experiment was arranged in a randomized block design with three replications. Experiments I and II were carried out on soils with a satisfactory chemical soil quality and tested treatments of gypsum applications ranging from 0.0 to 6.5 Mg ha-1. The other experiments were carried out on acid soil (experiment III) and a soil with an abrupt drop in chemical quality (experiment IV). Experiment III was arranged in a split plot design, where plots corresponded to gypsum rates between 0.0 and 5.0 Mg ha-1, and subplots to two lime rates (0.0 and 2.0 Mg ha-1). Experiment IV was conducted in a split plot design, with plots consisting of gypsum rates from 0.0 to 6.0 Mg ha-1 and subplots of lime rates from 0.0 to 4.8 Mg ha-1. Of a set of 17 harvests investigated during the experimental period, 82 % responded with yield increases to gypsum and lime inputs. The gypsum rate that induced the highest grain yield was high (4.7 Mg ha-1) and similarly, the maximum technical efficiency of lime was higher than the currently recommended. Furthermore, the combined application of lime and gypsum increased yield. There was a correlation between grain yield with the chemical quality of the soil layer 0.25-0.40 m in experiment I, 0.00-0.40 m in experiment II, and the 0.00-0.25 m in experiment IV. Only in experiment III, where the surface layer was acidic, the diagnostic layer usually sampled (0.00-0.10 m) was correlated with grain yield. Therefore, the use of the 0.00-0.25 m soil layer with critical base saturation values of 65 % and maximum Al saturation of 5 % could improve the current recommendations for soil correction. To exploit the yield potential of modern grain cultivars on dystrophic Oxisol, the formation of a thicker layer with high chemical quality is an efficient strategy. MenosAbstract: Modern maize, wheat, and soybean cultivars are usually characterized by a short cycle, high shoot-root ratio, and high responsiveness to nutrient input. Continuous no-tillage management (NTS) frequently leads to a steep gradient in soil chemical quality with depth, thus decreasing yield under conditions of acid subsoil and water stress. This study aimed to evaluate the effect of gypsum, applied separately or in combination with lime, on the yield of cultivars used in the state of Rio Grande do Sul, Brazil. The study consisted of four experiments conducted on a typic Hapludox under NTS. The experiment was arranged in a randomized block design with three replications. Experiments I and II were carried out on soils with a satisfactory chemical soil quality and tested treatments of gypsum applications ranging from 0.0 to 6.5 Mg ha-1. The other experiments were carried out on acid soil (experiment III) and a soil with an abrupt drop in chemical quality (experiment IV). Experiment III was arranged in a split plot design, where plots corresponded to gypsum rates between 0.0 and 5.0 Mg ha-1, and subplots to two lime rates (0.0 and 2.0 Mg ha-1). Experiment IV was conducted in a split plot design, with plots consisting of gypsum rates from 0.0 to 6.0 Mg ha-1 and subplots of lime rates from 0.0 to 4.8 Mg ha-1. Of a set of 17 harvests investigated during the experimental period, 82 % responded with yield increases to gypsum and lime inputs. The gypsum rate that induced the hig... Mostrar Tudo |
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Palavras-Chave: |
Rendimento de grãos; Saturação de base; Zona de raiz. |
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Thesagro: |
Gesso; Manejo do solo; Química do solo; Rendimento; Sistema de cultivo. |
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Categoria do assunto: |
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Marc: |
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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
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| 3. |  | SILVA, A. A. C. da; NASCIMENTO, A. R. B. do; LIRA, A. C. S.; ALMEIDA, R. P. de; SOARES, J. J. Efeito de concentrado emulsionável a base de NIM, Azadirachta indica, sobre a mortalidade de Spodoptera frugiperda (SMITH, 1797) (LEPIDOPTERA:NOCTUIDE). In: CONGRESSO BRASILEIRO DE ALGODÃO, 8., 2011, São Paulo. Evolução da cadeia para construção de um setor forte. Anais. Campina Grande, PB: Embrapa Algodão, 2011. P.141-146| Tipo: Artigo em Anais de Congresso |
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| 5. | | SANTOS, R. C. dos; FREIRE, R. M. M.; FIRMINO, P. de T.; AZEVEDO, D. M. P. de; ALMEIDA, R. P. de; SOARES, J. J.; SILVA, O. R. R. F.; REGO, G. M.; RIBEIRO, G. P.; ANDRADE, G. P.; COUTINHO, J. L. B.; SILVA, A. P. G.; FERREIRA FILHO, J. R.; ARAÚJO, J. F.; VASCONCELOS, O. L.; SILVEIRA, N. A. da. Cultivar de amendoim BRS 151 L7. 2. ed. Campina Grande: Embrapa Algodão, 2010. nao paginado.| Biblioteca(s): Embrapa Algodão. |
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| 7. | | ARAUJO, L. H. A.; SOUZA, C. de; OLIVEIRA, S. J. da C.; SOUTO, J. S.; SOARES, J. J. Macrofauna edáfica sob diferentes ambientes em latossolo da região do agreste. In: CONGRESSO BRASILEIRO DE MAMONA, 4.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 1., 2010, João Pessoa. Inclusão social e energia: anais. Campina Grande: Embrapa Algodão, 2010.| Tipo: Artigo em Anais de Congresso |
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| 8. | | SOARES, J. J.; ARRIEL, N. H. C. Pragas. In: ARRIEL, N. H. C.; BELTRAO, N. E. de M.; FIRMINO, P. de T. (Ed.). Gergelim: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa Informação Tecnológica: Campina Grande: Embrapa Algodão, 2009. p. 125-136| Tipo: Capítulo em Livro Técnico-Científico |
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| 11. | | NASCIMENTO, A. R. B. do; LIRA, A. C. S.; SOARES, J. J.; BESSERA, E. B.; ALMEIDA, R. P. de. Mortalidade, CL50 E CL90 de Concentrado Emulsionável à Base de Nim no Controle de Alabama argillacea Hüebner, 1818 (Lepidoptera: Noctuidae). In: CONGRESSO BRASILEIRO DE AGROECOLOGIA, 6., CONGRESSO LATINO AMERICANO DE AGROECOLOGIA, 2., 2009, Curitiba.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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| Registros recuperados : 108 | |
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