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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
16/08/2011 |
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Autoria: |
ELLIS, F. B.; HOWSE, K. R. |
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Afiliação: |
ARC Letcombe Lab., Wantage, Oxon OX12 9JT, UK. |
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Título: |
Effects of cultivation on the distribution of nutrients in the soil and the uptake of nitrogen and phosphorus by spring barley and winter wheat on there soil types. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Soil & Tillage Research, Amsterdam, v. 1, n. 1, p. 35-46, 1981. |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of cultivation, ploughing (20-25 cm), tine cultivation (7.5-10 or 15-20 cm) and direct drilling on the distribution of extractable soil P and K were compared on a sandy loam, a calcareous silt loam overlying chalk and a calcareous clay. Effects on the uptake of N and P by spring barley and winter wheat crops were also investigated. Direct drilling and the 2 depths of tine cultivation gave closely similar results and there was an increased conc. of extractable P and K close to the soil surface compared with the more uniform distribution through the tilled layer caused by the inversion of the soil by ploughing. In general, during the season P conc. in the shoot DM and P content/unit area in the crops were not affected by the differences in nutrient distribution. Thus no effects were detected in samples collected at the beginning of stem elongation. However, at anthesis in both crops P content was greater after direct drilling than after ploughing. Ploughing resulted in significantly greater conc. of N in the DM than did the other cultivation treatments. Averaging over both crops at the 3 sites, neither the yields of DM nor the total content of N differed significantly between cultivation treatments. The results give further confidence that simplified cultivation techniques including direct drilling are unlikely, at least in the short term, to affect adversely the uptake of nutrients by cereals. Emphasis is made to the closely similar results in the distribution of nutrients in the soil when it was disturbed to varying depths but without inversion.ADDITIONAL ABSTRACT:The effects of cultivation, ploughing (20-25 cm), tine cultivation (7.5-10 or 15-20 cm) and direct drilling on the distribution of extractable soil phosphate and potassium in 3 soils and on the uptake of nitrogen and phosphate by spring barley and winter wheat were investigated. Direct drilling and the 2 depths of tine cultivation gave similar results and there was an increased concentration of extractable P and K close to the soil surface compared with the more uniform distribution through the tilled layer caused by the inversion of the soil by ploughing. During the season phosphate concentration in the shoot dry matter and in the crops were not affected by the differences in nutrient distribution, but at anthesis in both crops phosphate content was greater after direct drilling than after ploughing. Ploughing resulted in significantly greater concentrations of nitrogen in the dry matter. Averaging over both crops, neither the yields of dry matter nor the total content of nitrogen differed significantly between cultivation treatments. MenosThe effects of cultivation, ploughing (20-25 cm), tine cultivation (7.5-10 or 15-20 cm) and direct drilling on the distribution of extractable soil P and K were compared on a sandy loam, a calcareous silt loam overlying chalk and a calcareous clay. Effects on the uptake of N and P by spring barley and winter wheat crops were also investigated. Direct drilling and the 2 depths of tine cultivation gave closely similar results and there was an increased conc. of extractable P and K close to the soil surface compared with the more uniform distribution through the tilled layer caused by the inversion of the soil by ploughing. In general, during the season P conc. in the shoot DM and P content/unit area in the crops were not affected by the differences in nutrient distribution. Thus no effects were detected in samples collected at the beginning of stem elongation. However, at anthesis in both crops P content was greater after direct drilling than after ploughing. Ploughing resulted in significantly greater conc. of N in the DM than did the other cultivation treatments. Averaging over both crops at the 3 sites, neither the yields of DM nor the total content of N differed significantly between cultivation treatments. The results give further confidence that simplified cultivation techniques including direct drilling are unlikely, at least in the short term, to affect adversely the uptake of nutrients by cereals. Emphasis is made to the closely similar results in the distribution of ... Mostrar Tudo |
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Palavras-Chave: |
Fertilização; Trigo (Inverno). |
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Thesagro: |
Cevada; Nitrogênio; Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03268naa a2200193 a 4500
001 1832841
005 2011-08-16
008 1981 bl --- 0-- u #d
100 1 $aELLIS, F. B.
245 $aEffects of cultivation on the distribution of nutrients in the soil and the uptake of nitrogen and phosphorus by spring barley and winter wheat on there soil types.
260 $c1981
520 $aThe effects of cultivation, ploughing (20-25 cm), tine cultivation (7.5-10 or 15-20 cm) and direct drilling on the distribution of extractable soil P and K were compared on a sandy loam, a calcareous silt loam overlying chalk and a calcareous clay. Effects on the uptake of N and P by spring barley and winter wheat crops were also investigated. Direct drilling and the 2 depths of tine cultivation gave closely similar results and there was an increased conc. of extractable P and K close to the soil surface compared with the more uniform distribution through the tilled layer caused by the inversion of the soil by ploughing. In general, during the season P conc. in the shoot DM and P content/unit area in the crops were not affected by the differences in nutrient distribution. Thus no effects were detected in samples collected at the beginning of stem elongation. However, at anthesis in both crops P content was greater after direct drilling than after ploughing. Ploughing resulted in significantly greater conc. of N in the DM than did the other cultivation treatments. Averaging over both crops at the 3 sites, neither the yields of DM nor the total content of N differed significantly between cultivation treatments. The results give further confidence that simplified cultivation techniques including direct drilling are unlikely, at least in the short term, to affect adversely the uptake of nutrients by cereals. Emphasis is made to the closely similar results in the distribution of nutrients in the soil when it was disturbed to varying depths but without inversion.ADDITIONAL ABSTRACT:The effects of cultivation, ploughing (20-25 cm), tine cultivation (7.5-10 or 15-20 cm) and direct drilling on the distribution of extractable soil phosphate and potassium in 3 soils and on the uptake of nitrogen and phosphate by spring barley and winter wheat were investigated. Direct drilling and the 2 depths of tine cultivation gave similar results and there was an increased concentration of extractable P and K close to the soil surface compared with the more uniform distribution through the tilled layer caused by the inversion of the soil by ploughing. During the season phosphate concentration in the shoot dry matter and in the crops were not affected by the differences in nutrient distribution, but at anthesis in both crops phosphate content was greater after direct drilling than after ploughing. Ploughing resulted in significantly greater concentrations of nitrogen in the dry matter. Averaging over both crops, neither the yields of dry matter nor the total content of nitrogen differed significantly between cultivation treatments.
650 $aCevada
650 $aNitrogênio
650 $aSolo
653 $aFertilização
653 $aTrigo (Inverno)
700 1 $aHOWSE, K. R.
773 $tSoil & Tillage Research, Amsterdam$gv. 1, n. 1, p. 35-46, 1981.
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Registro original: |
Embrapa Trigo (CNPT) |
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| Registros recuperados : 31 | |
| 21. |  | SANTOS, J. de A.; LUZ, G. de A.; OLIVEIRA, K. P. de; OLIVEIRA, L. F. de; ANDRADE JUNIOR, A. S. de; VALENTE, S. E. dos S.; LIMA, P. S. da C. Avaliação das condições do RNA após tratamento com DNASE I e padronização da RT-QPCR em cana-de-açúcar. In: JORNADA CIENTÍFICA DA EMBRAPA MEIO-NORTE, 2., 2016, Teresina. Anais da II Jornada Científica da Embrapa Meio-Norte. Teresina: Embrapa Meio-Norte, 2016. p. 32-35.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 22. | | LUZ, G. de A.; GOMES, M. F. da C.; SANTOS, J. de A.; OLIVEIRA, K. P. de; VALENTE, S. E. dos S.; VASCONCELOS, L. F. L.; LIMA, P. S. da C. Análise comparativa de três protocolos de extração de DNA em mangabeira. In: JORNADA CIENTÍFICA DA EMBRAPA MEIO-NORTE, 2., 2016, Teresina. Anais da II Jornada Científica da Embrapa Meio-Norte. Teresina: Embrapa Meio-Norte, 2016. p. 28-31.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 23. | | BRITO, M. V. de; GOMES, M. F. da C.; SÁ, G. H. de; COSTA, M. F.; VIANA, J. P. G.; SOUSA, C. C. de; GOMES, S. O.; LIMA, P. S. da C.; VALENTE, S. E. dos S. Avaliação de métodos de extração de DNA genômico em Ocimum basilicum. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 4 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 24. | | SANTOS, J. de A.; ARAUJO, L. A.; SOUSA, C. C. de; LIMA, F. da C. D. de; ARAUJO, E. de S.; GOMES, S. O.; VIANA, J. P. G.; LIMA, P. S. da C.; VALENTE, S. E. dos S. Avaliação de protocolos de extração de DNA genômico total em Cymbopogon winterianu. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 4 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 25. | | GOMES, M. F. da C.; BRITO, M. V. de; VIANA, J. P. G; VALENTE, S. E. dos S.; COSTA, M. F.; SOUSA, C. C. de; GOMES, S. O.; SÁ, G. H. de; LIMA, P. S. da C. Avaliação de protocolos de extração de DNA genômico total em Mentha arvensis L. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 5 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 26. | | SÁ, G. H. de; COSTA, M. F.; GOMES, M. F. da C.; BRITO, M. V. de; SOUSA, C. C. de; GOMES, S. O.; VIANA, J. P. G.; LIMA, P. S. da C.; VALENTE, S. E. dos S. Análise de quatro protocolos de extração de DNA em Acmella uliginosa. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 4 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 27. | | LIMA, F. da C. D. de; ARAUJO, L. A.; SOUSA, C. C. de; SANTOS, J. de A.; ARAUJO, E. de S.; GOMES, S. O.; VIANA, J. P. G.; LIMA, P. S. da C.; VALENTE, S. E. dos S. Comparação de cinco métodos para extração de DNA a partir de folhas de Phyllanthus niruri. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 3 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 28. | | LUZ, G. de A.; SANTOS, J. de A.; OLIVEIRA, K. P. de; MARTINS, P. P.; VALENTE, S. E. dos S.; MAIA, M. C. C.; LIMA, P. S. da C. Genetic diversity and population structure of mangabeira (Hancornia speciosa) estimated using ISSR markers. Acta Scientiarum. Biological Sciences, v. 42, e53606, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 29. | | SOUZA, I. G. de B.; SANTOS, M. F. dos; GOMES, R. L. F.; VALENTE, S. E. dos S.; SITTOLIN, I. M.; ARAUJO, E. C. E.; LIMA, P. S. da C. Otimização de marcadores issr para análises de diversidade genética em babaçu. In: CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 6. 2009. Montes Claros. Biodiesel: inovação tecnológica: anais. Lavras: UFLA, 2009. p. 53.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 30. | | GOMES, M. F. da C.; BORGES, A. N. C.; BATISTA, G. S. S.; LUZ, G. de A.; OLIVEIRA, M. E. A.; LOPES, A. C. de A.; ARAÚJO, A. S. F. de; GOMES, R. L. F.; BRITTO, F. B.; LIMA, P. S. da C.; VALENTE, S. E. dos S. Genetic diversity and structure in natural populations of cajui from Brazilian Cerrado. Bioscience Journal, v. 37, e37080, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 31. | | SILVA, J. H. O.; SOUSA, M. V. de; LIMA, P. S. da C.; GOMES, R. L. F.; LOPES, A. C. de A.; VALENTE, S. E. dos S.; SILVA, V. B. da; PERON, A. P.; MARTINS, V. do v.; FEITOZA, L. de L. Diversidade de plantas no cerrado brasileiro: um enfoque em Parkia platycephala. In: MONTEIRO, V. da F. C.; MOURA, P. H. A. (Org.). Ciências botânicas: evolução e diversidade de plantas. Ponta Grossa, PR: Atena, 2021. Cap. 6. p. 12-27.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Meio-Norte. |
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| Registros recuperados : 31 | |
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