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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
29/09/1999 |
Data da última atualização: |
29/09/1999 |
Autoria: |
EMBRAPA. Centro de Pesquisa Agropecuaria do Meio-Norte (Teresina, PI). |
Título: |
Projeto BIRD, relatorio atividades primeiro semestre/1995. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Teresina, 1995. |
Páginas: |
nao paginado. |
Idioma: |
Português |
Conteúdo: |
No primeiro semestre de 1995 o componente Geracao de Tecnologia constou de 29 subprojetos de pesquisa pertencentes aos seguintes programas: Recursos Geneticos (02), Producao de Graos (06), Frutas e Hortalicas (07), Producao Animal (08), Materias-primas (02), Agricultura Familiar (01) e Desenvolvimento Rural (03). Na area de Producao Vegetal o destaque e para o lancamento da cultivar de arroz de sequeiro Carajas. Na Producao Animal destacaram-se os subprojetos sobre pesquisa em apicultura para identificacao da flora apicola nativa do Meio-Norte do Brasdil, sob os aspectos floristicos e fitossociologicos, com a identificacao de 59 taxons a nivel de familia, 26 a nivel de genero e 21 de especies. No componente Difusao de Tecnologia realizaram-se eventos de formas integrada com a extensao rural, cooperativas e produtores rurais, visando difundir novos conhecimentos atraves de utilizacoes de unidades demonstrativas, cursos, treinamentos, dias de campo, excursoes. etc. Nas atividades Difusao foram envolvidas 890 pessoas entre produtores rurais, donas de casa, autoridades, extensionistas rurais, estudantes, representantes de bancos oficiais e pesquisadores. |
Palavras-Chave: |
Agropecuaria; Brasil; Piaui; Regiao Meio-Norte. |
Thesagro: |
Difusão de Tecnologia; Produção Agrícola; Produção Animal. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01748nam a2200205 a 4500 001 1055812 005 1999-09-29 008 1995 bl uuuu u0uu1 u #d 100 1 $aEMBRAPA. Centro de Pesquisa Agropecuaria do Meio-Norte (Teresina, PI). 245 $aProjeto BIRD, relatorio atividades primeiro semestre/1995. 260 $aTeresina$c1995 300 $anao paginado. 520 $aNo primeiro semestre de 1995 o componente Geracao de Tecnologia constou de 29 subprojetos de pesquisa pertencentes aos seguintes programas: Recursos Geneticos (02), Producao de Graos (06), Frutas e Hortalicas (07), Producao Animal (08), Materias-primas (02), Agricultura Familiar (01) e Desenvolvimento Rural (03). Na area de Producao Vegetal o destaque e para o lancamento da cultivar de arroz de sequeiro Carajas. Na Producao Animal destacaram-se os subprojetos sobre pesquisa em apicultura para identificacao da flora apicola nativa do Meio-Norte do Brasdil, sob os aspectos floristicos e fitossociologicos, com a identificacao de 59 taxons a nivel de familia, 26 a nivel de genero e 21 de especies. No componente Difusao de Tecnologia realizaram-se eventos de formas integrada com a extensao rural, cooperativas e produtores rurais, visando difundir novos conhecimentos atraves de utilizacoes de unidades demonstrativas, cursos, treinamentos, dias de campo, excursoes. etc. Nas atividades Difusao foram envolvidas 890 pessoas entre produtores rurais, donas de casa, autoridades, extensionistas rurais, estudantes, representantes de bancos oficiais e pesquisadores. 650 $aDifusão de Tecnologia 650 $aProdução Agrícola 650 $aProdução Animal 653 $aAgropecuaria 653 $aBrasil 653 $aPiaui 653 $aRegiao Meio-Norte
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
06/12/2017 |
Data da última atualização: |
06/12/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
PASSOS, A. M. A. dos; AKER, A. M.; COSTA, R. S. C. da; SANTOS, F. C. dos; LEITE, V. P. D.; MARCOLAN, A. L. |
Afiliação: |
ALEXANDRE MARTINS ABDAO DOS PASSOS, CNPMS; Andreia Marcilene Aker; ROGERIO SEBASTIAO CORREA DA COSTA, CPAF-Rondonia; FLAVIA CRISTINA DOS SANTOS, CNPMS; Viviane Pacheco Dantas Leite; ALAERTO LUIZ MARCOLAN, CPAF-Rondonia. |
Título: |
Effect of cover crops on physico-chemical attributes of soil in a short-term experiment in the southwestern Amazon region. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
African Journal of Agricultural Research, v. 12, n. 47, p. 3339-3347, Nov. 2017. |
DOI: |
10.5897/AJAR2017.12800 |
Idioma: |
Inglês |
Conteúdo: |
No-tillage is an agricultural system that is proposed as a sustainable soil management system. This paper aims to evaluate the short-term effects of cover crops on a no-tillage system, by assessing a number of physical and chemical attributes of soil of the Brazilian Amazon region. The experiment was carried out in a typical Ferralsol under a no-tillage system from March to December, 2014. A randomized block design, with four replicates was used. The performance and effects of fourteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, Crotalaria ochroleuca, Crotalaria spectabilis, Stizolobium aterrima, Stizolobium cinereum, Pennisetum glaucum, Sorghum bicolor, Sorghum sudanense, Urochloa brizanha cv. Xaraés, Urochloa brizantha cv. Piatã and Urochloa ruziziensis and Zea mays) and fallow (control treatment) on the soil quality were assessed. The cover crops were sown in the off season in April 2014, before the summer crop (maize). The levels of P, K, Ca2+, Mg2+, Al3+, H+Al, saturation by aluminum, sum of bases, organic matter, pH and resistance to soil penetration were evaluated following the end of the cover crops growth. Some near-surface soil attributes were affected by the cover crops. Urochloa species improved the levels of potassium in the soil at depths up to 5 cm below the surface. The highest penetration resistance was observed in the superficial layer between 12 and 16 cm deep, with penetration resistance values varying between 2472 and 2912 kPa. The Urochloa exhibited satisfactory agronomic performance when grown under a simulated crop livestock integration system. It is concluded that the use of cover crops in a no-till system has the potential to improve the chemical quality of soil in the Southwestern Amazon region. MenosNo-tillage is an agricultural system that is proposed as a sustainable soil management system. This paper aims to evaluate the short-term effects of cover crops on a no-tillage system, by assessing a number of physical and chemical attributes of soil of the Brazilian Amazon region. The experiment was carried out in a typical Ferralsol under a no-tillage system from March to December, 2014. A randomized block design, with four replicates was used. The performance and effects of fourteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, Crotalaria ochroleuca, Crotalaria spectabilis, Stizolobium aterrima, Stizolobium cinereum, Pennisetum glaucum, Sorghum bicolor, Sorghum sudanense, Urochloa brizanha cv. Xaraés, Urochloa brizantha cv. Piatã and Urochloa ruziziensis and Zea mays) and fallow (control treatment) on the soil quality were assessed. The cover crops were sown in the off season in April 2014, before the summer crop (maize). The levels of P, K, Ca2+, Mg2+, Al3+, H+Al, saturation by aluminum, sum of bases, organic matter, pH and resistance to soil penetration were evaluated following the end of the cover crops growth. Some near-surface soil attributes were affected by the cover crops. Urochloa species improved the levels of potassium in the soil at depths up to 5 cm below the surface. The highest penetration resistance was observed in the superficial layer between 12 and 16 cm deep, with penetration resistance values varying between 2472 and 2912 kPa. T... Mostrar Tudo |
Palavras-Chave: |
Sustentabilidade. |
Thesagro: |
Esterco; Física do solo; Planta de cobertura; Plantio direto; Química do solo. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/168334/1/Effect-cover.pdf
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Marc: |
LEADER 02628naa a2200265 a 4500 001 2081670 005 2017-12-06 008 2017 bl uuuu u00u1 u #d 024 7 $a10.5897/AJAR2017.12800$2DOI 100 1 $aPASSOS, A. M. A. dos 245 $aEffect of cover crops on physico-chemical attributes of soil in a short-term experiment in the southwestern Amazon region.$h[electronic resource] 260 $c2017 520 $aNo-tillage is an agricultural system that is proposed as a sustainable soil management system. This paper aims to evaluate the short-term effects of cover crops on a no-tillage system, by assessing a number of physical and chemical attributes of soil of the Brazilian Amazon region. The experiment was carried out in a typical Ferralsol under a no-tillage system from March to December, 2014. A randomized block design, with four replicates was used. The performance and effects of fourteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, Crotalaria ochroleuca, Crotalaria spectabilis, Stizolobium aterrima, Stizolobium cinereum, Pennisetum glaucum, Sorghum bicolor, Sorghum sudanense, Urochloa brizanha cv. Xaraés, Urochloa brizantha cv. Piatã and Urochloa ruziziensis and Zea mays) and fallow (control treatment) on the soil quality were assessed. The cover crops were sown in the off season in April 2014, before the summer crop (maize). The levels of P, K, Ca2+, Mg2+, Al3+, H+Al, saturation by aluminum, sum of bases, organic matter, pH and resistance to soil penetration were evaluated following the end of the cover crops growth. Some near-surface soil attributes were affected by the cover crops. Urochloa species improved the levels of potassium in the soil at depths up to 5 cm below the surface. The highest penetration resistance was observed in the superficial layer between 12 and 16 cm deep, with penetration resistance values varying between 2472 and 2912 kPa. The Urochloa exhibited satisfactory agronomic performance when grown under a simulated crop livestock integration system. It is concluded that the use of cover crops in a no-till system has the potential to improve the chemical quality of soil in the Southwestern Amazon region. 650 $aEsterco 650 $aFísica do solo 650 $aPlanta de cobertura 650 $aPlantio direto 650 $aQuímica do solo 653 $aSustentabilidade 700 1 $aAKER, A. M. 700 1 $aCOSTA, R. S. C. da 700 1 $aSANTOS, F. C. dos 700 1 $aLEITE, V. P. D. 700 1 $aMARCOLAN, A. L. 773 $tAfrican Journal of Agricultural Research$gv. 12, n. 47, p. 3339-3347, Nov. 2017.
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