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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Unidades Centrais. |
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Data corrente: |
20/03/2013 |
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Data da última atualização: |
16/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NASCENTE, A. S.; CRUSCIOL, C. A. C.; COBUCCI, T. |
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Afiliação: |
ADRIANO STEPHAN NASCENTE, CNPAF; CARLOS ALEXANDRE COSTA CRUSCIOL., UNESP, Botucatu-SP; TARCISIO COBUCCI, CNPAF. |
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Título: |
Ammonium and nitrate in soil and upland rice yield as affected by cover crops and their desiccation time. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 47, n. 12, p. 1699-1706, dez. 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate the effect of cover crops and their desiccation times on upland rice yield and on the levels of nitrate and ammonium in a no.tillage soil. The experiment was carried out in a randomized blocks, with split plots and three replicates. Cover crops (plots) were sowed in the off season (March 2009). In November 2009, at 30, 20, 10 and 0 days before rice sowing (split plots), herbicide was applied on the cover crops (fallow, Panicum maximum, Urochloa ruziziensis, U. brizantha and millet). Straw and soil were sampled (0.10 cm) at the sowing day, and after 7, 14, 21, 28 and 35 days. Straws from millet and fallow were degraded more rapidly and provided the lowest level of nitrate in the soil. Urochloa ruziziensis, U. brizantha and P. maximum produced higher amounts of dry matter, and provided the highest levels of nitrate in the soil. Millet provides the lowest nitrate/ammonium ratio and the highest upland rice yield. Desiccations carried out at 30 and 20 days before sowing had the largest levels of nitrate in the soil at the sowing date. Nitrogen content and forms in the soil are affected by cover crops and their desiccation times. |
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Palavras-Chave: |
Millet. |
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Thesagro: |
Amônia; Arritmia; Arroz; Desidratação; Milheto; Nitrato; Oryza sativa; Panicum maximum; Planta de cobertura. |
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Thesaurus Nal: |
nitrogen; Urochloa brizantha; Urochloa ruziziensis. |
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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/79489/1/04.pdf
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Marc: |
LEADER 02018naa a2200301 a 4500
001 1953592
005 2022-09-16
008 2012 bl uuuu u00u1 u #d
100 1 $aNASCENTE, A. S.
245 $aAmmonium and nitrate in soil and upland rice yield as affected by cover crops and their desiccation time.
260 $c2012
520 $aThe objective of this work was to evaluate the effect of cover crops and their desiccation times on upland rice yield and on the levels of nitrate and ammonium in a no.tillage soil. The experiment was carried out in a randomized blocks, with split plots and three replicates. Cover crops (plots) were sowed in the off season (March 2009). In November 2009, at 30, 20, 10 and 0 days before rice sowing (split plots), herbicide was applied on the cover crops (fallow, Panicum maximum, Urochloa ruziziensis, U. brizantha and millet). Straw and soil were sampled (0.10 cm) at the sowing day, and after 7, 14, 21, 28 and 35 days. Straws from millet and fallow were degraded more rapidly and provided the lowest level of nitrate in the soil. Urochloa ruziziensis, U. brizantha and P. maximum produced higher amounts of dry matter, and provided the highest levels of nitrate in the soil. Millet provides the lowest nitrate/ammonium ratio and the highest upland rice yield. Desiccations carried out at 30 and 20 days before sowing had the largest levels of nitrate in the soil at the sowing date. Nitrogen content and forms in the soil are affected by cover crops and their desiccation times.
650 $anitrogen
650 $aUrochloa brizantha
650 $aUrochloa ruziziensis
650 $aAmônia
650 $aArritmia
650 $aArroz
650 $aDesidratação
650 $aMilheto
650 $aNitrato
650 $aOryza sativa
650 $aPanicum maximum
650 $aPlanta de cobertura
653 $aMillet
700 1 $aCRUSCIOL, C. A. C.
700 1 $aCOBUCCI, T.
773 $tPesquisa Agropecuária Brasileira$gv. 47, n. 12, p. 1699-1706, dez. 2012.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | REIS, J. C. L. 5ª These: Comentários. In: OTERO, D. T.; HADLER, E. C. (Org.). Actas: a classe rural resgatando as raízes da sua história. Pelotas, Editora Textos, 2008. p. 193-198.| Tipo: Capítulo em Livro Técnico-Científico |
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| Registros recuperados : 59 | |
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