Estoques de carbono e nitrogênio sob diferentes condições de manejo de um Argissolo Vermelho Amarelo, cultivado com milho doce nos tabuleiros costeiros de Sergipe

Pedra, Wellma Nascimento; Pedrotti, Alceu; Silva, Tácio Oliveira; Macedo, Fabrício Lopes de; Gonzaga, Maria Isidória Silva

doi:10.5433/1679-0359.2012v33n6p2075

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…The stability of aggregates expressed by WMD and GMD in the 0.10 -0.20 m layer presented a significant difference among them, attributed to management specificity, growth habit, density and root thickness (Pedra et al, 2012). The soil under forest presented higher WMD and GMD due to the greater input of vegetal material, which mixed with the soil matrix acts as a natural polymer aggregating or cementing the soil particles.…”

Section: Resultsmentioning

confidence: 97%

Multivariate analysis in the evaluation of soil attributes in areas under different uses in the region of Humaitá, AM

et al. 2019

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The recognition of the influence of management practices on soil physical and chemical conditions is substantial for sustainable agriculture. For this reason, this study was developed for the purpose of evaluating the behavior of soil attributes under different uses in the region of Humaitá, AM, using multivariate statistical methods. The study was developed in 8 rural properties producing bananas, grassland, maize, coffee, cassava, vegetables, agroforestry system and a forest fragment. Samples of soils with preserved structure in the 0.0 - 0.10 and 0.10 - 0.20 m layers were randomly collected in 5 small trenches per area, totaling 32 samples in the management systems, to determine the physical and chemical attributes. The data were then submitted to univariate and multivariate statistical analysis. Exploratory data analysis (principal components and dendrogram) and frequency of environmental covariates was efficient in distinguishing production environments, so multivariate classification based on physical and chemical attributes of the soil can help in the proper planning of land use. The analysis of the principal components indicates that the BD presents direct dependence with the SPR, signaling the use of the soil with grassland the only one in the process of compaction. Soil acidity is the main limiting factor for crop development, requiring the adoption of pH corrective practices with improvements in nutrient supply. The conversion of the forest to grassland maintained the structural characteristics of the soil, while the other uses increased improvements in physical quality and soil fertility.

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Section: Resultsmentioning

confidence: 97%

Multivariate analysis in the evaluation of soil attributes in areas under different uses in the region of Humaitá, AM

et al. 2019

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“…There are studies on soil organic matter characteristics in other regions of Brazil, such as the capoeira areas under burning (Pessoa et al, 2012), and the soil in different organic production systems (Loss et al, 2011). However, these studies are still incipient in native areas in the Northeast region of Brazil, although it is possible to find studies determining total organic carbon and SOM fractions in native and cultivated areas in coastal soils (Pedra et al, 2012), but these studies are scarce in native areas in the state of Sergipe.…”

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confidence: 99%

Chemical Attributes and Carbon Fractions in Serra de Itabaiana National Park

et al. 2020

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This study aimed to assess soil chemical attributes, organic matter fractions and carbon stocks of forest in three different regeneration stages in the Serra de Itabaiana National Park, Sergipe. The study was conducted in three areas: open white sands, intermediate white sands, and closed white sands, with a history of differentiated degradation. Soil samples were collected at 0-20 cm depth for chemical characterization and for fractionation of soil organic matter and C stock. The open white sands obtained the best results regarding levels of macronutrients, total organic carbon, and total soil nitrogen, as well as higher carbon/nitrogen ratio compared with intermediate white sands and closed white sands, with such effects being attributed to recent exposure to fire. Carbon concentrations in humic fractions of organic matter were little influenced by different vegetation in regeneration, except the carbon fraction of humic acid, which is more sensitive to different management and soil usage.

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Simulation of changes in C and N stocks with land use and cover in Amazon Forest-Cerrado transition environment

et al. 2021

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Estoques de carbono e nitrogênio sob diferentes condições de manejo de um Argissolo Vermelho Amarelo, cultivado com milho doce nos tabuleiros costeiros de Sergipe

Cited by 3 publications

References 18 publications

Multivariate analysis in the evaluation of soil attributes in areas under different uses in the region of Humaitá, AM

Multivariate analysis in the evaluation of soil attributes in areas under different uses in the region of Humaitá, AM

Chemical Attributes and Carbon Fractions in Serra de Itabaiana National Park

Simulation of changes in C and N stocks with land use and cover in Amazon Forest-Cerrado transition environment

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