| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
24/06/1996 |
|
Data da última atualização: |
13/07/2018 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
BAHIA, F. G. F. T. C.; BRAGA, J. M. |
|
Afiliação: |
EMBRAPA-CNPMS. |
|
Título: |
Influência da adubação fosfatada e calagem sobre a absorção do zinco, em dois solos de Minas. |
|
Ano de publicação: |
1974 |
|
Fonte/Imprenta: |
Revista Ceres, Viçosa, v. 21, n. 115, p. 167-192, 1974. |
|
Idioma: |
Português |
|
Conteúdo: |
Two experiments were installed in the greenhouse to study the relationships between phosphate fertilization, liming and zinc fertilization. One experiment used a red latosol soil while the other used a dark brown acid soil. Hybrid corn AG 206 was used to plant both experiments. The data collected consisted of dry matter productions level of zinc in the leaves, stems and tootes of the corn as well as the P/Zn and Ca/Zn rations in the leaves. Phosphate fertilization and liming lowed the level of zinc in the corn leaves to a point equal to or lower than 14 ppm. These leves were below 80% of the maximum yields of the experiments. The application of 4,5 ppm of zinc to the soil was adequate to raise the level of zinc in the leaves above the critical level. It also increase the production was limited by a zinc deficiency. The phosphorus and zinc interaction, which ocurred primarily in the roots of the plant, reduced the translocation of zinc to the leaves. The interaction between liming and zinc ocurred prior to the absorption of zinc by the plant. It aprears that there are ratios between phosphorus and zinc between calcium and zinc in the leaves which are critical to good plant growth. The critical P/Zn ratio is betwee 300 and 470 and the critical Ca/Zn ratio between 455-640. |
|
Palavras-Chave: |
Bruno acido; Fertilizacao; Fertilization; Latossol roxo; Phosphate; Tropical. |
|
Thesagro: |
Absorção; Ácido; Calagem; Fosfato; Solo; Zinco. |
|
Thesaurus Nal: |
liming; zinc. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/47198/1/Influencia-adubacao.pdf
|
|
Marc: |
LEADER 02081naa a2200301 a 4500
001 1471652
005 2018-07-13
008 1974 bl uuuu u00u1 u #d
100 1 $aBAHIA, F. G. F. T. C.
245 $aInfluência da adubação fosfatada e calagem sobre a absorção do zinco, em dois solos de Minas.$h[electronic resource]
260 $c1974
520 $aTwo experiments were installed in the greenhouse to study the relationships between phosphate fertilization, liming and zinc fertilization. One experiment used a red latosol soil while the other used a dark brown acid soil. Hybrid corn AG 206 was used to plant both experiments. The data collected consisted of dry matter productions level of zinc in the leaves, stems and tootes of the corn as well as the P/Zn and Ca/Zn rations in the leaves. Phosphate fertilization and liming lowed the level of zinc in the corn leaves to a point equal to or lower than 14 ppm. These leves were below 80% of the maximum yields of the experiments. The application of 4,5 ppm of zinc to the soil was adequate to raise the level of zinc in the leaves above the critical level. It also increase the production was limited by a zinc deficiency. The phosphorus and zinc interaction, which ocurred primarily in the roots of the plant, reduced the translocation of zinc to the leaves. The interaction between liming and zinc ocurred prior to the absorption of zinc by the plant. It aprears that there are ratios between phosphorus and zinc between calcium and zinc in the leaves which are critical to good plant growth. The critical P/Zn ratio is betwee 300 and 470 and the critical Ca/Zn ratio between 455-640.
650 $aliming
650 $azinc
650 $aAbsorção
650 $aÁcido
650 $aCalagem
650 $aFosfato
650 $aSolo
650 $aZinco
653 $aBruno acido
653 $aFertilizacao
653 $aFertilization
653 $aLatossol roxo
653 $aPhosphate
653 $aTropical
700 1 $aBRAGA, J. M.
773 $tRevista Ceres, Viçosa$gv. 21, n. 115, p. 167-192, 1974.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
16/02/2000 |
|
Data da última atualização: |
16/02/2000 |
|
Autoria: |
WESTERHOF, R.; BUURMAN, P.; GRIETHUYSEN, C. van; AYARZA, M. A.; VILELA, L.; ZECH, W. |
|
Título: |
Aggregation studied by laser diffraction in relation to plowing and liming in the Cerrado region in Brazil. |
|
Ano de publicação: |
1999 |
|
Fonte/Imprenta: |
Geoderma, Amsterdam, v.90, p.277-290, 1999. |
|
Idioma: |
Inglês |
|
Conteúdo: |
In the Cerrado savanna region in Brazil, the effects of different land use on Oxisol aggregation were studied, using laser diffraction grain size analyses. The topsoil of plowed systems had significantly lower amount of macroaggrehates (2000-194 um) and a significantly higher amount of soil in the microaggregate size and and primary particle fraction (<76 um) compared to pastures and the native Cerrado. In plowed systems low in soil organic carbon (SOC), lime had a negative effect on aggregate stability. Lime addition had no effect on topsoil aggregation in land use systems that were not plowed regularly and generally had SOC content. For all the studied topsoils, pHKCl was positively correlated with the amount of clay dispersed after 3 h of shaking in water. SOC did not influence clay dispersion in the range of soils studied. In continuous cropping systems in the Cerrado region, with a combination of mechanical stress and low SOC, liming will cause an increase in small aggregates and primary particles and hence contribuite to a destabilization of the soil structure. |
|
Palavras-Chave: |
Ploughing. |
|
Thesagro: |
Aradura; Calagem; Cerrado; Estrutura do Solo; Matéria Orgânica. |
|
Thesaurus NAL: |
liming; organic matter; soil structure. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01860naa a2200289 a 4500
001 1555057
005 2000-02-16
008 1999 bl --- 0-- u #d
100 1 $aWESTERHOF, R.
245 $aAggregation studied by laser diffraction in relation to plowing and liming in the Cerrado region in Brazil.
260 $c1999
520 $aIn the Cerrado savanna region in Brazil, the effects of different land use on Oxisol aggregation were studied, using laser diffraction grain size analyses. The topsoil of plowed systems had significantly lower amount of macroaggrehates (2000-194 um) and a significantly higher amount of soil in the microaggregate size and and primary particle fraction (<76 um) compared to pastures and the native Cerrado. In plowed systems low in soil organic carbon (SOC), lime had a negative effect on aggregate stability. Lime addition had no effect on topsoil aggregation in land use systems that were not plowed regularly and generally had SOC content. For all the studied topsoils, pHKCl was positively correlated with the amount of clay dispersed after 3 h of shaking in water. SOC did not influence clay dispersion in the range of soils studied. In continuous cropping systems in the Cerrado region, with a combination of mechanical stress and low SOC, liming will cause an increase in small aggregates and primary particles and hence contribuite to a destabilization of the soil structure.
650 $aliming
650 $aorganic matter
650 $asoil structure
650 $aAradura
650 $aCalagem
650 $aCerrado
650 $aEstrutura do Solo
650 $aMatéria Orgânica
653 $aPloughing
700 1 $aBUURMAN, P.
700 1 $aGRIETHUYSEN, C. van
700 1 $aAYARZA, M. A.
700 1 $aVILELA, L.
700 1 $aZECH, W.
773 $tGeoderma, Amsterdam$gv.90, p.277-290, 1999.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
