Chemical attributes in a Xanthic Ferralsol under different tillage systems

Chemical attributes in a Xanthic Ferralsol under different tillage systems

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The objective of this work was to evaluate the chemical attributes in a Xanthic Ferralsol under different tillage systems in the cerrado of Piauí State, Brazil. Four tillage systems were evaluated: three‑year‑old conventional tillage; no‑tillage with three (NT3) and five years old (NT5), using millet as cover crop; and no‑tillage with nine years old (NT9), of which seven years used millet as cover crop and two used forage. A native cerrado area was taken as reference. Soil samples were collected in wet and dry seasons at soil depths, 0.00–0.05, 0.05–0.10, 0.10–0.20 and 0.20–0.40 m, and analyzed for pH, Al3+, H+Al, Ca2+, Mg2+, K+, sum of bases (SB), effective (t) and potential (T) cation exchangeable capacity, base (BS) and Al3+ saturation (m%), available P and total organic carbon (TOC). The system NT9 showed the highest values of pH and lowest of Al3+, H+Al, and m%. The highest values for Ca2+, K, SB, t, T, V% and P, were observed under NT5 and NT9, until 0.20 m depth. The highest TOC contents were verified also under NT5 and NT9, except for 0.00‑0.05 m soil depth. Organic matter accumulation associated with pasture under no‑till increases TOC content at deeper soil layers in the dry period.

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Main Authors: Campos, Liliane Pereira, Leite, Luiz Fernando Carvalho, Maciel, Giovana Alcântara, Iwata, Bruna de Freitas, Nóbrega, Júlio César Azevedo
Format: Digital revista
Language:por
Published: Pesquisa Agropecuaria Brasileira 2012
Online Access:https://seer.sct.embrapa.br/index.php/pab/article/view/10272
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spelling rev-pab-br-article-102722014-05-12T19:55:53Z Chemical attributes in a Xanthic Ferralsol under different tillage systems Atributos químicos de um Latossolo Amarelo sob diferentes sistemas de manejo Campos, Liliane Pereira Leite, Luiz Fernando Carvalho Maciel, Giovana Alcântara Iwata, Bruna de Freitas Nóbrega, Júlio César Azevedo total organic carbon; soil fertility; soil organic matter; conventional tillage, no‑tillage; soil quality carbono orgânico total; fertilidade do solo; matéria orgânica do solo; plantio convencional; plantio direto; qualidade do solo The objective of this work was to evaluate the chemical attributes in a Xanthic Ferralsol under different tillage systems in the cerrado of Piauí State, Brazil. Four tillage systems were evaluated: three‑year‑old conventional tillage; no‑tillage with three (NT3) and five years old (NT5), using millet as cover crop; and no‑tillage with nine years old (NT9), of which seven years used millet as cover crop and two used forage. A native cerrado area was taken as reference. Soil samples were collected in wet and dry seasons at soil depths, 0.00–0.05, 0.05–0.10, 0.10–0.20 and 0.20–0.40 m, and analyzed for pH, Al3+, H+Al, Ca2+, Mg2+, K+, sum of bases (SB), effective (t) and potential (T) cation exchangeable capacity, base (BS) and Al3+ saturation (m%), available P and total organic carbon (TOC). The system NT9 showed the highest values of pH and lowest of Al3+, H+Al, and m%. The highest values for Ca2+, K, SB, t, T, V% and P, were observed under NT5 and NT9, until 0.20 m depth. The highest TOC contents were verified also under NT5 and NT9, except for 0.00‑0.05 m soil depth. Organic matter accumulation associated with pasture under no‑till increases TOC content at deeper soil layers in the dry period. O objetivo deste trabalho foi avaliar os atributos químicos de um Latossolo Amarelo sob diferentes sistemas de manejo do solo, no cerrado piauiense. Foram avaliados quatro sistemas de manejo: plantio convencional por três anos; plantio direto por três anos (PD3) e cinco anos (PD5), com uso de milheto como cultivo de cobertura; e plantio direto por nove anos (PD9), dos quais sete com uso de milheto e dois com forrageira. Utilizou-se área de cerrado nativo como referência. As amostras do solo foram coletadas em períodos chuvosos e secos, nas camadas 0,00–0,05, 0,05–0,10, 0,10–0,20 e 0,20–0,40 m, para determinação de pH, Al3+, H+Al, Ca2+, Mg2+, K+, P disponível, carbono orgânico total (COT), soma de bases (SB), capacidade de troca de cátions efetiva (t) e potencial (T), e saturação por bases (V) e por alumínio (m%). O sistema PD9 apresentou maiores valores de pH e menores de Al3+, H+Al e m%. Observaram-se maiores valores de Ca2+, K+, SB, t, T, V e P sob PD5 e PD9, até 0,20 m. Os maiores valores de COT foram verificados sob PD5 e PD9, exceto na camada de 0,00–0,05 m. O acúmulo de material orgânico associado ao uso de forrageira em PD favorece o aumento dos teores de COT nas camadas mais profundas do solo, no período seco. Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira CNPq e FAPEPI 2012-02-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.sct.embrapa.br/index.php/pab/article/view/10272 Pesquisa Agropecuaria Brasileira; v.46, n.12, dez. 2011; 1681-1689 Pesquisa Agropecuária Brasileira; v.46, n.12, dez. 2011; 1681-1689 1678-3921 0100-104x por https://seer.sct.embrapa.br/index.php/pab/article/view/10272/6706 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10272/5621
institution EMBRAPA
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-pab-br
tag revista
region America del Sur
libraryname Sistema de bibliotecas de EMBRAPA
language por
format Digital
author Campos, Liliane Pereira
Leite, Luiz Fernando Carvalho
Maciel, Giovana Alcântara
Iwata, Bruna de Freitas
Nóbrega, Júlio César Azevedo
spellingShingle Campos, Liliane Pereira
Leite, Luiz Fernando Carvalho
Maciel, Giovana Alcântara
Iwata, Bruna de Freitas
Nóbrega, Júlio César Azevedo
Chemical attributes in a Xanthic Ferralsol under different tillage systems
author_facet Campos, Liliane Pereira
Leite, Luiz Fernando Carvalho
Maciel, Giovana Alcântara
Iwata, Bruna de Freitas
Nóbrega, Júlio César Azevedo
author_sort Campos, Liliane Pereira
title Chemical attributes in a Xanthic Ferralsol under different tillage systems
title_short Chemical attributes in a Xanthic Ferralsol under different tillage systems
title_full Chemical attributes in a Xanthic Ferralsol under different tillage systems
title_fullStr Chemical attributes in a Xanthic Ferralsol under different tillage systems
title_full_unstemmed Chemical attributes in a Xanthic Ferralsol under different tillage systems
title_sort chemical attributes in a xanthic ferralsol under different tillage systems
description The objective of this work was to evaluate the chemical attributes in a Xanthic Ferralsol under different tillage systems in the cerrado of Piauí State, Brazil. Four tillage systems were evaluated: three‑year‑old conventional tillage; no‑tillage with three (NT3) and five years old (NT5), using millet as cover crop; and no‑tillage with nine years old (NT9), of which seven years used millet as cover crop and two used forage. A native cerrado area was taken as reference. Soil samples were collected in wet and dry seasons at soil depths, 0.00–0.05, 0.05–0.10, 0.10–0.20 and 0.20–0.40 m, and analyzed for pH, Al3+, H+Al, Ca2+, Mg2+, K+, sum of bases (SB), effective (t) and potential (T) cation exchangeable capacity, base (BS) and Al3+ saturation (m%), available P and total organic carbon (TOC). The system NT9 showed the highest values of pH and lowest of Al3+, H+Al, and m%. The highest values for Ca2+, K, SB, t, T, V% and P, were observed under NT5 and NT9, until 0.20 m depth. The highest TOC contents were verified also under NT5 and NT9, except for 0.00‑0.05 m soil depth. Organic matter accumulation associated with pasture under no‑till increases TOC content at deeper soil layers in the dry period.
publisher Pesquisa Agropecuaria Brasileira
publishDate 2012
url https://seer.sct.embrapa.br/index.php/pab/article/view/10272
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