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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
27/10/2020 |
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Data da última atualização: |
17/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRASIL, E. C.; DANTAS, R. C. R.; SILVA JÚNIOR, M. L. da; FREITAS, L. de S. |
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Afiliação: |
EDILSON CARVALHO BRASIL, CPATU; RUBIA CARLA RIBEIRO DANTAS, UFRA; MÁRIO LOPES DA SILVA JÚNIOR, UFRA; LUIS DE SOUZA FREITAS, UFRA. |
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Título: |
Changes in carbon stocks and chemical attributes of an oxisol as a result of adoption period of no-tillage system in the brazilian Eastern Amazon. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Agricultural Studies, v. 8, n. 3, p. 106-124, 2020. |
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DOI: |
https://doi.org/10.5296/jas.v8i3.15988 |
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Idioma: |
Inglês |
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Conteúdo: |
The conversion of forest areas to grain cropping has promoted a decrease in soil organic matter stocks in the Amazon. This processis most striking when the conventional cultivation system is used. In order to evaluate the changes in soil carbon and nutrient stocks resulting from the time of adoption of the no tillage system in a dystrophic Yellow Oxisolof the Brazilian Amazon biome, a study was conducted in a grain producingarea in the northeastern of Pará, Brazil.The treatmentscorresponded to the following systems: CT6-conventional tillage system with six years of implementation; No-tillage system with 3 (NT3), 4 (NT4) and 7 (NT7) years of implementation. All systems were always cultivated in corn / soybean rotation. Deformed and non-deformed soil samples were collected on a the 2013 crop year at 0-10, 10-20 and 20-40 cm depths. Stocks of carbon (SC) and phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) were calculated by using the equivalent soil mass methodology. Regardless of depth, theNTshowed higher SCvalues than the CT. The adoption of NTshowed a tendency of increasing SCof the soil over time. Such increases were up to 36% of the NT7 compared to theCT6. In NT7, the stocks of K, Ca and Mg were higher in relation to PC6. The EC correlated positively with the stocks of K, Ca and Mg in the areas under NT, regardless of the time of system adoption, up to 40 cm deep, indicating improvementsin the soil fertility. |
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Palavras-Chave: |
Anoxisol. |
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Thesagro: |
Absorção de Nutrientes; Fertilidade do Solo; Matéria Orgânica; Plantio Direto; Solo. |
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Thesaurus Nal: |
No-tillage; Organic matter; Soil fertility; Soil nutrients. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02381naa a2200289 a 4500
001 2125936
005 2020-11-17
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5296/jas.v8i3.15988$2DOI
100 1 $aBRASIL, E. C.
245 $aChanges in carbon stocks and chemical attributes of an oxisol as a result of adoption period of no-tillage system in the brazilian Eastern Amazon.$h[electronic resource]
260 $c2020
520 $aThe conversion of forest areas to grain cropping has promoted a decrease in soil organic matter stocks in the Amazon. This processis most striking when the conventional cultivation system is used. In order to evaluate the changes in soil carbon and nutrient stocks resulting from the time of adoption of the no tillage system in a dystrophic Yellow Oxisolof the Brazilian Amazon biome, a study was conducted in a grain producingarea in the northeastern of Pará, Brazil.The treatmentscorresponded to the following systems: CT6-conventional tillage system with six years of implementation; No-tillage system with 3 (NT3), 4 (NT4) and 7 (NT7) years of implementation. All systems were always cultivated in corn / soybean rotation. Deformed and non-deformed soil samples were collected on a the 2013 crop year at 0-10, 10-20 and 20-40 cm depths. Stocks of carbon (SC) and phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) were calculated by using the equivalent soil mass methodology. Regardless of depth, theNTshowed higher SCvalues than the CT. The adoption of NTshowed a tendency of increasing SCof the soil over time. Such increases were up to 36% of the NT7 compared to theCT6. In NT7, the stocks of K, Ca and Mg were higher in relation to PC6. The EC correlated positively with the stocks of K, Ca and Mg in the areas under NT, regardless of the time of system adoption, up to 40 cm deep, indicating improvementsin the soil fertility.
650 $aNo-tillage
650 $aOrganic matter
650 $aSoil fertility
650 $aSoil nutrients
650 $aAbsorção de Nutrientes
650 $aFertilidade do Solo
650 $aMatéria Orgânica
650 $aPlantio Direto
650 $aSolo
653 $aAnoxisol
700 1 $aDANTAS, R. C. R.
700 1 $aSILVA JÚNIOR, M. L. da
700 1 $aFREITAS, L. de S.
773 $tJournal of Agricultural Studies$gv. 8, n. 3, p. 106-124, 2020.
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Embrapa Amazônia Oriental (CPATU) |
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| 1. |  | ROCHEDO, E. R. R.; SILVA, D. N. G.; DE LUCA, C.; ROCHEDO, P. R. R.; WASSERMAN, M. A. V.; PEREZ, D. V. Estudo preliminar para a remediação de áreas rurais após um acidente nuclear ou radiológico. Geochimica Brasiliensis, v. 33, n. 1, p. 98-106, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
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