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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
27/11/2015 |
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Data da última atualização: |
20/12/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
NASCIMENTO JUNIOR, A. do; BASSOI, M. C.; SÓ e SILVA, M.; CAIERÃO, E. |
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Afiliação: |
ALFREDO DO NASCIMENTO JUNIOR, CNPT; MANOEL CARLOS BASSOI, CNPSO; MÁRCIO SÓ E SILVA, CNPT; EDUARDO CAIERÃO, CNPT. |
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Título: |
Cultivar de triticale BRS Harmonia - equilibrio em fatores agronômicos. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: REUNIÃO DA COMISSÃO BRASILEIRA DE PESQUISA DE TRIGO E TRITICALE, 7.; SEMINÁRIO TÉCNICO DO TRIGO, 8., 2013, Londrina. Resumos... [S.l.: s.n., 2013. Melhoramento. 1 CD-ROM. |
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Idioma: |
Português |
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Thesagro: |
Trigo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/134144/1/ID43445-2013reuniaotrigo-melhoramento46-1.pdf
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Marc: |
LEADER 00566nam a2200145 a 4500
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008 2013 bl uuuu u00u1 u #d
100 1 $aNASCIMENTO JUNIOR, A. do
245 $aCultivar de triticale BRS Harmonia - equilibrio em fatores agronômicos.
260 $aIn: REUNIÃO DA COMISSÃO BRASILEIRA DE PESQUISA DE TRIGO E TRITICALE, 7.; SEMINÁRIO TÉCNICO DO TRIGO, 8., 2013, Londrina. Resumos... [S.l.: s.n., 2013. Melhoramento. 1 CD-ROM.$c2013
650 $aTrigo
700 1 $aBASSOI, M. C.
700 1 $aSÓ e SILVA, M.
700 1 $aCAIERÃO, E.
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Embrapa Trigo (CNPT) |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
21/09/2021 |
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Data da última atualização: |
21/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ALLEONI, L. R. F.; PEIXOTO, R. T. dos G.; AZEVEDO, A. C. de; MELO, L. C. A. |
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Afiliação: |
LUIS REYNALDO FERRACCIU ALLEONI, ESALQ/USP; RICARDO TRIPPIA DOS G PEIXOTO, CNPS; ANTONIO CARLOS DE AZEVEDO, USP; LEONIDAS CARRIJO AZEVEDO MELO, USP. |
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Título: |
Components of surface charge in tropical soils with contrasting mineralogies. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Soil Science, v. 174, n. 11, p. 629-638, Nov. 2009. |
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DOI: |
http://doi.org/10.1097/SS.0b013e3181c17a93 |
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Idioma: |
Inglês |
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Conteúdo: |
Study of surface electric charges of soil colloids helps in understanding the physicochemical phenomena that influence the capacity of retaining nutrients and their availability to plants. The structural charge (sigma(0), (min)), the variable charge (sigma(q, min)), and the organic matter (OM) charge (sigma(total) (OM)) of 12 tropical soils with contrasting mineralogies were evaluated based on the difference of selectivity for Cs+ and Li+ between the functional ionizable surfaces groups and the mineral 2:1 siloxane surface. Soils were divided into three groups: G1, soils with a predominance of kaolinite and gibbsite in the clay fraction; G2, soils with hydroxy-interlayered 2:1 minerals; and G3, soils with smectite but without hydroxy-interlayered 2:1 minerals. The Cs absorption method was efficient for detecting the charge components in tropical soils. The mineral structural charge contributed 11% and 16%, 28% and 31%, and 52% and 59% of total soil charge of A and B horizons of soils from groups G 1, G2, and G3, respectively. On the other hand, OM contributed 53% and 37%, 48% and 41%, and 21% and 20% of total charge for the same samples, respectively, In highly weathered soils of group G I and, to a lesser extent, in soils in group G2, surface charges depended mainly on their variable components, resulting from the OM (sigma(toal) (OM)), as well as from imperfections found in 1:1 minerals (sigma(q, min)). The importance of OM in determining the magnitude of electric charges in humid tropical soils is highlighted. MenosStudy of surface electric charges of soil colloids helps in understanding the physicochemical phenomena that influence the capacity of retaining nutrients and their availability to plants. The structural charge (sigma(0), (min)), the variable charge (sigma(q, min)), and the organic matter (OM) charge (sigma(total) (OM)) of 12 tropical soils with contrasting mineralogies were evaluated based on the difference of selectivity for Cs+ and Li+ between the functional ionizable surfaces groups and the mineral 2:1 siloxane surface. Soils were divided into three groups: G1, soils with a predominance of kaolinite and gibbsite in the clay fraction; G2, soils with hydroxy-interlayered 2:1 minerals; and G3, soils with smectite but without hydroxy-interlayered 2:1 minerals. The Cs absorption method was efficient for detecting the charge components in tropical soils. The mineral structural charge contributed 11% and 16%, 28% and 31%, and 52% and 59% of total soil charge of A and B horizons of soils from groups G 1, G2, and G3, respectively. On the other hand, OM contributed 53% and 37%, 48% and 41%, and 21% and 20% of total charge for the same samples, respectively, In highly weathered soils of group G I and, to a lesser extent, in soils in group G2, surface charges depended mainly on their variable components, resulting from the OM (sigma(toal) (OM)), as well as from imperfections found in 1:1 minerals (sigma(q, min)). The importance of OM in determining the magnitude of electric charges ... Mostrar Tudo |
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Thesagro: |
Matéria Orgânica; Solo. |
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Thesaurus NAL: |
Soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02176naa a2200205 a 4500
001 2134609
005 2021-09-21
008 2009 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1097/SS.0b013e3181c17a93$2DOI
100 1 $aALLEONI, L. R. F.
245 $aComponents of surface charge in tropical soils with contrasting mineralogies.$h[electronic resource]
260 $c2009
520 $aStudy of surface electric charges of soil colloids helps in understanding the physicochemical phenomena that influence the capacity of retaining nutrients and their availability to plants. The structural charge (sigma(0), (min)), the variable charge (sigma(q, min)), and the organic matter (OM) charge (sigma(total) (OM)) of 12 tropical soils with contrasting mineralogies were evaluated based on the difference of selectivity for Cs+ and Li+ between the functional ionizable surfaces groups and the mineral 2:1 siloxane surface. Soils were divided into three groups: G1, soils with a predominance of kaolinite and gibbsite in the clay fraction; G2, soils with hydroxy-interlayered 2:1 minerals; and G3, soils with smectite but without hydroxy-interlayered 2:1 minerals. The Cs absorption method was efficient for detecting the charge components in tropical soils. The mineral structural charge contributed 11% and 16%, 28% and 31%, and 52% and 59% of total soil charge of A and B horizons of soils from groups G 1, G2, and G3, respectively. On the other hand, OM contributed 53% and 37%, 48% and 41%, and 21% and 20% of total charge for the same samples, respectively, In highly weathered soils of group G I and, to a lesser extent, in soils in group G2, surface charges depended mainly on their variable components, resulting from the OM (sigma(toal) (OM)), as well as from imperfections found in 1:1 minerals (sigma(q, min)). The importance of OM in determining the magnitude of electric charges in humid tropical soils is highlighted.
650 $aSoil organic matter
650 $aMatéria Orgânica
650 $aSolo
700 1 $aPEIXOTO, R. T. dos G.
700 1 $aAZEVEDO, A. C. de
700 1 $aMELO, L. C. A.
773 $tSoil Science$gv. 174, n. 11, p. 629-638, Nov. 2009.
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