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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
08/02/2018 |
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Data da última atualização: |
08/02/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
VIEIRA, R. F.; PAZIANOTTO, R. A. A. |
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Afiliação: |
ROSANA FARIA VIEIRA, CNPMA; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA. |
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Título: |
Microbial activity in soil cultivated with sugarcane: effect of the amount of straw retained in the soil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 36., 2017, Belém, PA. Amazônia e seus solos: peculiaridades e potencialidades. Anais... Belém, PA: SBCS, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
Sugarcane cultivation has gone through intense changes in the management practices due to the introduction of mechanical harvesting and the possibility of using nitrogen fixing bacteria (NFB). The use of this inoculant can reduce the use of nitrogen fertilizers without compromising culture productivity. However, mechanical harvesting generates significant amounts of straw, which are returned to the soil. The sugar-alcohol sector has questioned the amount of straw that should stay on the soil, considering its demand for energy purposes and the production of second generation ethanol. In order to develop and adopt sustainable management practices, one must quantify the possible impacts on the environment. Microbiological parameters have been widely used for this end, since they are more sensitive to changes in cultivation. The objective was to study the effect of maintaining differentiated amounts of straw on the soil, after harvesting the sugarcane, on some chemical and microbiological soil parameters. In all the treatments the sugarcane was inoculated with NFB. |
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Palavras-Chave: |
Soil enzymatic activity. |
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Thesagro: |
Cana de açúcar; Solo. |
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Thesaurus Nal: |
microbial activity; sugarcane. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172422/1/RA-VieiraRF-et-al-XXXVI-CBCS-2017-Microbial....pdf
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Marc: |
LEADER 01758nam a2200181 a 4500
001 2087503
005 2018-02-08
008 2017 bl uuuu u00u1 u #d
100 1 $aVIEIRA, R. F.
245 $aMicrobial activity in soil cultivated with sugarcane$beffect of the amount of straw retained in the soil.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 36., 2017, Belém, PA. Amazônia e seus solos: peculiaridades e potencialidades. Anais... Belém, PA: SBCS$c2017
520 $aSugarcane cultivation has gone through intense changes in the management practices due to the introduction of mechanical harvesting and the possibility of using nitrogen fixing bacteria (NFB). The use of this inoculant can reduce the use of nitrogen fertilizers without compromising culture productivity. However, mechanical harvesting generates significant amounts of straw, which are returned to the soil. The sugar-alcohol sector has questioned the amount of straw that should stay on the soil, considering its demand for energy purposes and the production of second generation ethanol. In order to develop and adopt sustainable management practices, one must quantify the possible impacts on the environment. Microbiological parameters have been widely used for this end, since they are more sensitive to changes in cultivation. The objective was to study the effect of maintaining differentiated amounts of straw on the soil, after harvesting the sugarcane, on some chemical and microbiological soil parameters. In all the treatments the sugarcane was inoculated with NFB.
650 $amicrobial activity
650 $asugarcane
650 $aCana de açúcar
650 $aSolo
653 $aSoil enzymatic activity
700 1 $aPAZIANOTTO, R. A. A.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
05/02/2013 |
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Data da última atualização: |
23/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CAMPOS, R. V.; COBUCI, J. A.; COSTA, C. N.; BRACCINI NETO, J. |
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Afiliação: |
RAFAEL VIEGAS CAMPOS, UFRS; JAIME ARAUJO COBUCI, UFRS; CLAUDIO NAPOLIS COSTA, CNPGL; JOSÉ BRACCINI NETO, UFRS. |
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Título: |
Genetic parameters for type traits in Holstein cows in Brazil. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 41, n. 10, p. 2150-2161, 2012. |
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DOI: |
https://doi.org/10.1590/S1516-35982012001000003 |
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Idioma: |
Inglês |
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Conteúdo: |
Data from 26,558 Holstein cows in 802 herds were used to estimate genetic, residual and phenotypic parameters for 22 type traits. The model included the fixed effects of herd-year, period of classification, classifier, stage of lactation and age of cows at calving (covariate) and random genetic and residual effects. Heritability for type traits ranged from 0.10 to 0.39. The genetic variability in these traits suggested the possibility for moderate genetic gains through selection. The phenotypic correlations were moderated, mainly in the section conformation. Genetic correlations between type traits ranged from -0.44 to 0.85. High genetic correlations indicated that breeding programs could be successful without including all type traits. The selection for the final score at the expense of other traits must be performed with restraint, because in the long term, this may promote undesirable changes in some type traits. |
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Palavras-Chave: |
Correlação genetica; Covariancia de componentes; Gado de leite; REMLF90. |
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Thesagro: |
Hereditariedade; Seleção. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/948339/1/Genetic-parameters-for-type-traits-in-Holstein-cows-in-Brazil.pdf
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Marc: |
LEADER 01659naa a2200241 a 4500
001 1948339
005 2023-01-23
008 2012 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S1516-35982012001000003$2DOI
100 1 $aCAMPOS, R. V.
245 $aGenetic parameters for type traits in Holstein cows in Brazil.$h[electronic resource]
260 $c2012
520 $aData from 26,558 Holstein cows in 802 herds were used to estimate genetic, residual and phenotypic parameters for 22 type traits. The model included the fixed effects of herd-year, period of classification, classifier, stage of lactation and age of cows at calving (covariate) and random genetic and residual effects. Heritability for type traits ranged from 0.10 to 0.39. The genetic variability in these traits suggested the possibility for moderate genetic gains through selection. The phenotypic correlations were moderated, mainly in the section conformation. Genetic correlations between type traits ranged from -0.44 to 0.85. High genetic correlations indicated that breeding programs could be successful without including all type traits. The selection for the final score at the expense of other traits must be performed with restraint, because in the long term, this may promote undesirable changes in some type traits.
650 $aHereditariedade
650 $aSeleção
653 $aCorrelação genetica
653 $aCovariancia de componentes
653 $aGado de leite
653 $aREMLF90
700 1 $aCOBUCI, J. A.
700 1 $aCOSTA, C. N.
700 1 $aBRACCINI NETO, J.
773 $tRevista Brasileira de Zootecnia$gv. 41, n. 10, p. 2150-2161, 2012.
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Embrapa Gado de Leite (CNPGL) |
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