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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
19/10/2010 |
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Data da última atualização: |
30/06/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
BERNARDI, A. C. de C.; OLIVEIRA, P. P. A.; MONTE, M. B. de; POLIDORO, J. C.; SOUZA-BARROS, F. |
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Afiliação: |
ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; MARISA B. DE MELO MONTE, CETEM/RIO DE JANEIRO/RJ; JOSE CARLOS POLIDORO, CNPS; FERNANDO SOUZA BARROS, INSTITUTO DE FÍSICA/RIO DE JANEIRO-RJ. |
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Título: |
Brazilian sedimentary zeolite use in agriculture. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: WORLD CONGRESS OF SOIL SCIENCE, 19., 2010, Brisbane. Soil solutions for a changing world - Anais. Brisbane: ASSSI, 2010 |
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Idioma: |
Português |
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Conteúdo: |
Zeolites are hydrated crystalline aluminosilicate minerals of alkaline and alkaline earth metals, structured in rigid three dimension nets, organized by AlO4 and SiO4 tetrahedral and are of natural occurrence. This report describes the characterization and application of the Brazilian zeolitic sedimentary rock as a release fertilizer and soil conditioner. The characterization of the head samples showed that it is composed of the zeolite stilbite intermixed with a smectitic clay mineral, and quartz. A low-cost quartz separation technique was established. Enrichment of concentrated natural zeolite was carried out: zeolite + KNO3, zeolite + K2HPO4 and zeolite + H3PO4 + apatite and the concentrated zeolite. These materials were tested with Rangpur lime rootstock and an experiment was also carried out with successive crops grown on the same substrate: lettuce, tomato, rice, and Andropogon grass. The results indicated that N, P and K enriched zeolite was an adequate slow-release source of nutrients to plants. Other green house and field experiments with concentrated zeolite applied with urea showed reduction of losses of ammonia by volatilization and improved in N use efficiency by maize. Concentrated zeolite also increased water retention and the available water capacity of a sand soil. |
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Palavras-Chave: |
N losses; Slow-release fertilizer; Stilbite; Water retention curve; Zeolite. |
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Thesaurus Nal: |
available water capacity. |
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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/102903/1/PROCI-2010.00105.pdf
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Marc: |
LEADER 02033nam a2200229 a 4500
001 1864627
005 2023-06-30
008 2010 bl uuuu u00u1 u #d
100 1 $aBERNARDI, A. C. de C.
245 $aBrazilian sedimentary zeolite use in agriculture.$h[electronic resource]
260 $aIn: WORLD CONGRESS OF SOIL SCIENCE, 19., 2010, Brisbane. Soil solutions for a changing world - Anais. Brisbane: ASSSI$c2010
520 $aZeolites are hydrated crystalline aluminosilicate minerals of alkaline and alkaline earth metals, structured in rigid three dimension nets, organized by AlO4 and SiO4 tetrahedral and are of natural occurrence. This report describes the characterization and application of the Brazilian zeolitic sedimentary rock as a release fertilizer and soil conditioner. The characterization of the head samples showed that it is composed of the zeolite stilbite intermixed with a smectitic clay mineral, and quartz. A low-cost quartz separation technique was established. Enrichment of concentrated natural zeolite was carried out: zeolite + KNO3, zeolite + K2HPO4 and zeolite + H3PO4 + apatite and the concentrated zeolite. These materials were tested with Rangpur lime rootstock and an experiment was also carried out with successive crops grown on the same substrate: lettuce, tomato, rice, and Andropogon grass. The results indicated that N, P and K enriched zeolite was an adequate slow-release source of nutrients to plants. Other green house and field experiments with concentrated zeolite applied with urea showed reduction of losses of ammonia by volatilization and improved in N use efficiency by maize. Concentrated zeolite also increased water retention and the available water capacity of a sand soil.
650 $aavailable water capacity
653 $aN losses
653 $aSlow-release fertilizer
653 $aStilbite
653 $aWater retention curve
653 $aZeolite
700 1 $aOLIVEIRA, P. P. A.
700 1 $aMONTE, M. B. de
700 1 $aPOLIDORO, J. C.
700 1 $aSOUZA-BARROS, F.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Pecuária Sudeste. |
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Data corrente: |
28/10/2009 |
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Data da última atualização: |
17/05/2022 |
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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: |
MACHADO, P. L. O. A.; BERNARDI, A. C. C.; ORTIZ VALENCIA, L. I.; MEIRELLES, M. S. P.; SILVA, C. A.; GIMENEZ, L. M.; MOLIN, J. P.; MADARI, B. E. |
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Afiliação: |
PEDRO LUIZ OLIVEIRA DE A MACHADO, CNPAF; ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; L. I. ORTIZ VALENCIA, UFRJ; MARGARETH SIMOES P MEIRELLES, CNPS; C. A. SILVA, UFLA; L. M. GIMENEZ, FUNDAÇÃO ABC/CASTRO, PR; J. P. MOLIN, ESALQ; BEATA EMOKE MADARI, CNPAF. |
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Título: |
Carbon stocks of a Rhodic Ferralsol under no-tillage in Southern Brazil: spatial variability at a farm scale. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Australian Journal of Soil Research, v. 47, n. 3, p. 253-260, May 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to determine, at a farm level, the spatial variability of organic carbon stock (CS) at different depths on a field of 1 soil type in long-term (13-year) crop production under no-tillage. The crop rotation comprised soybean [Glycine max (L.) Merr.] alternating with maize (Zea mays L.) in the summer season. For the winter season, wheat (Triticum aestivum L.) was cropped in rotation with black oat (Avena sativa L.), a cover crop. The 12.5-ha field was sampled at a density of 6.25 samples/ha. Within the coarse grid, 2 dense grids with 20-, 10-, and 5-m spacing were established. Soil samples were collected at all grid nodes and analysed for soil organic carbon and bulk density. The CS at 0-0.05, 0.05-0.10, and 0.10-0.20m was corrected for equal soil mass. Geostatistics was used for the estimation of spatial distribution of CS at 3 soil depths. We found that CS variation was low to medium (CV 6.7-19.4%). The variograms of CS at all depths were best fitted by spherical models and showed ranges of 120m, except at 0-0.05m (range 109m). At 0-0.20m depth, CS was 15.2-24.5t/ha (CV 8.2%, range 120m). The use of geostatistics reveals a powerful tool for the spatial estimation of CS at depth of a Rhodic Ferralsol under no-tillage, and demonstrated CS variation on a 12.5-ha area, even though soil and crop management were the same for >10 years.. |
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Palavras-Chave: |
Brasil; Organic carbon; Soil organic. |
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Thesagro: |
Carbono; Matéria orgânica; Milho; Plantio direto; Rotação de cultura; Solo; Textura do solo; Trigo. |
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Thesaurus NAL: |
Corn; crop rotation; geostatistics; No-tillage; soil; Soil organic carbon; Soil organic matter; soil texture; Wheat. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02606naa a2200445 a 4500
001 1574098
005 2022-05-17
008 2009 bl uuuu u00u1 u #d
100 1 $aMACHADO, P. L. O. A.
245 $aCarbon stocks of a Rhodic Ferralsol under no-tillage in Southern Brazil$bspatial variability at a farm scale.$h[electronic resource]
260 $c2009
520 $aThe objective of this study was to determine, at a farm level, the spatial variability of organic carbon stock (CS) at different depths on a field of 1 soil type in long-term (13-year) crop production under no-tillage. The crop rotation comprised soybean [Glycine max (L.) Merr.] alternating with maize (Zea mays L.) in the summer season. For the winter season, wheat (Triticum aestivum L.) was cropped in rotation with black oat (Avena sativa L.), a cover crop. The 12.5-ha field was sampled at a density of 6.25 samples/ha. Within the coarse grid, 2 dense grids with 20-, 10-, and 5-m spacing were established. Soil samples were collected at all grid nodes and analysed for soil organic carbon and bulk density. The CS at 0-0.05, 0.05-0.10, and 0.10-0.20m was corrected for equal soil mass. Geostatistics was used for the estimation of spatial distribution of CS at 3 soil depths. We found that CS variation was low to medium (CV 6.7-19.4%). The variograms of CS at all depths were best fitted by spherical models and showed ranges of 120m, except at 0-0.05m (range 109m). At 0-0.20m depth, CS was 15.2-24.5t/ha (CV 8.2%, range 120m). The use of geostatistics reveals a powerful tool for the spatial estimation of CS at depth of a Rhodic Ferralsol under no-tillage, and demonstrated CS variation on a 12.5-ha area, even though soil and crop management were the same for >10 years..
650 $aCorn
650 $acrop rotation
650 $ageostatistics
650 $aNo-tillage
650 $asoil
650 $aSoil organic carbon
650 $aSoil organic matter
650 $asoil texture
650 $aWheat
650 $aCarbono
650 $aMatéria orgânica
650 $aMilho
650 $aPlantio direto
650 $aRotação de cultura
650 $aSolo
650 $aTextura do solo
650 $aTrigo
653 $aBrasil
653 $aOrganic carbon
653 $aSoil organic
700 1 $aBERNARDI, A. C. C.
700 1 $aORTIZ VALENCIA, L. I.
700 1 $aMEIRELLES, M. S. P.
700 1 $aSILVA, C. A.
700 1 $aGIMENEZ, L. M.
700 1 $aMOLIN, J. P.
700 1 $aMADARI, B. E.
773 $tAustralian Journal of Soil Research$gv. 47, n. 3, p. 253-260, May 2009.
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Embrapa Arroz e Feijão (CNPAF) |
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