2014
DOI: 10.1590/s0100-06832014000400009
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Carbono, nitrogênio e abundância natural de δ13c e δ15n em uma cronossequência de agricultura sob plantio direto no cerrado goiano

Abstract: A conversão do cerrado nativo em sistemas agropecuários pode alterar com o passar dos anos de cultivo os teores de C e N, bem como o sinal isotópico do δ13C e δ15N do solo. Desta forma, o objetivo deste trabalho foi avaliar os teores de C, N e abundância natural de δ13C e δ15N no perfil do solo em uma cronossequência de agricultura sob sistema plantio direto (SPD) no cerrado goiano. Para isso, em Montividiu, GO, foram selecionadas áreas sob SPD com diferentes tempos de implantação: SPD com três anos de implant… Show more

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Cited by 18 publications
(35 citation statements)
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“…Another important analysis used in NT chronosequences is variation in the natural abundance of 13 C, because it confirms the history of cultivation in the study areas, as well as shows how plant residues of the crops seeded in the areas are contributing to the formation of soil organic matter (SOM) in a particular environment (SIQUEIRA NETO et al, 2010;GUARESCHI et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
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“…Another important analysis used in NT chronosequences is variation in the natural abundance of 13 C, because it confirms the history of cultivation in the study areas, as well as shows how plant residues of the crops seeded in the areas are contributing to the formation of soil organic matter (SOM) in a particular environment (SIQUEIRA NETO et al, 2010;GUARESCHI et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, in agriculture chronosequence studies performed in the state of Goiás, it is important to take into account the pasture areas in order to demonstrate the potential of other management systems, such as the no-till system (NT), to revert soil degradation in these areas. In addition, intensive use of soil under conventional tillage (CT) represents another very common means of degradation in the state of Goiás (GUARESCHI, 2013;GUARESCHI et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
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