Physical properties and particle-size fractions of soil organic matter in crop-livestock integration

Tirloni, Carolina; Vitorino, Antônio Carlos Tadeu; Bergamin, Anderson Cristian; Souza, Luiz Carlos Ferreira de

doi:10.1590/s0100-06832012000400024

Cited by 19 publications

(19 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These greater TC contents in the NCA were related to its greater amount of plant residues on the soil surface due to the vegetation in this area and the absence of human disturbances. Similar results were reported by Batista et al (2013), Tirloni et al (2012) and Gazolla et al (2015), who found greater TOC contents in areas of native vegetation compared with CLI areas. Table 2.…”

Section: Resultssupporting

confidence: 89%

“…Rossi et al (2012) compared CLI and native areas (Cerrado) in the same region of the present study and found greater OCp and smaller OCm contents in the soil layer 0,0-0,20 m of the CLI area. Tirloni et al (2012) found similar values of OCp and OCm in CLI and native forest areas. Carmo et al (2012) evaluated an Oxisol area under CLI in the Cerrado biome and found greater OCp and OCm contents in the CLI compared with the native vegetation area.…”

Section: Introductionsupporting

confidence: 57%

“…Different results are found in the literature regarding the fractionation of the granulometric SOM performed in Oxisols under CLI in the Cerrado (CARMO et al, 2012;ROSSI et al, 2012;TIRLONI et al, 2012;GAZOLLA et al, 2015). Gazolla et al (2015), evaluated an Oxisol area under CLI in the Cerrado biome and found lower OCp contents in the surface layer compared with a native area, however, they found similar OCp contents in the layer 0,10-0,40 m of these areas.…”

Section: Introductionmentioning

confidence: 88%

See 2 more Smart Citations

Granulometric and oxidizable carbon fractions of soil organic matter in crop-livestock integration systems

Bieluczyk

Pereira

Guareschi

et al. 2017

SCA

View full text Add to dashboard Cite

The identification of the labile and recalcitrant forms of soil organic matter (SOM) allows to rapidly define, or even predict if the management used favors increments or losses of carbon in the soil. Thus, the objective of this work was to assess the effects of different grazing intensities and soybean crops on the oxidizable and granulometric fractions of the SOM in a crop-livestock integration combined with no-tillage system (CLI-NTS), established in 2009 in the Goiás Federal University. The treatments consisted of three different pasture heights (0.25 m P25; 0.35 m P35; 0.45 m P45), and areas without grazing (AWG), and a native vegetation area of the Cerrado biome (NCA), adjacent to the experimental area, was evaluated as references and compared with the cultivated areas. Soil samples (Oxisol -USDA; typic distroferric Red Latosol -SiBCS) were collected in the layers 0.00-0.05; 0.05-0.10 0.10-0.20 and 0.20-0.40 m of each area, and arranged in a completely randomized experimental design with six replications. The soil total carbon was quantified (TC) by dry combustion. The SOM granulometry and oxidizable SOM were fractionated into particulate carbon (OCp), carbon bond with minerals (OCm) and four oxidizable fractions with increasing degrees of recalcitrance (F1

show abstract

Section: Resultssupporting

confidence: 89%

Section: Introductionsupporting

confidence: 57%

Section: Introductionmentioning

confidence: 88%

See 1 more Smart Citation

Granulometric and oxidizable carbon fractions of soil organic matter in crop-livestock integration systems

Bieluczyk

Pereira

Guareschi

et al. 2017

SCA

View full text Add to dashboard Cite

show abstract

“…Therefore, knowing soil structural quality and its variation throughout the time is crucial to predict such effects (VIANA et al, 2004). This way, several researches have been carried out to draw structural quality indexes by monitoring the effects of management practices on soil physical, chemical, water and biological attributes (BERGAMIN et al, 2010;LIMA et al, 2012;OLIVEIRA et al, 2004;SEVERIANO et al, 2009); besides organic matter dynamic along its profile (COSTA JUNIOR et al, 2012;SILVA et al, 2013;TIRLONI et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, it noteworthy to mention that proper morphometric conditions will be find in soils under original vegetation; since it has no human action and increased organic matter level, contributing to structure stability (COSTA JUNIOR et al, 2012;SALTON et al, 2008;TIRLONI et al, 2012). Unfortunately, these conditions change when inserted into a productive process and which therefore changes soil structuring at different magnitude levels (OLIVEIRA et al, 2004;SEVERIANO et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Aggregates morphometry in a Latosol (Oxisol) under different soil management systems

et al. 2016

View full text Add to dashboard Cite

Changes in soil physical properties are inherent in land use, mainly in superficial layers. Structural alterations can directly influence distribution, stability and especially morphometry of soil aggregates, which hence will affect pore system and the dynamic process of water and air in soil. Among the methods used to measure these changes, morphometry is a complementary tool to the classic methods. The aim of this study was to evaluate structural quality of a Latosol (Oxisol), under different management systems, using morphometric techniques. Treatments consisted of soil under no-tillage (NT); pasture (P), in which both had been cultivated for ten years, and an area under native vegetation (NV -Savannah like vegetation). Aggregates were sampled at depths of 0-0.10 and 0.10-0.20 m, retained on sieves with 9.52 -4.76 mm, 4.76 -1.0mm, 1.0 -0.5mm diameter ranges. Aggregate morphometry was assessed by 2D images from scanner via QUANTPORO software. The analyzed variables were: area, perimeter, aspect, roughness, Ferret diameter and compactness. Moreover, disturbed samples were collected at the same depths to determine particle size, aggregate stability in water, water-dispersible clay, clay flocculation index and organic matter content. It was observed that different soil management systems have modified soil aggregate morphology as well as physical attributes; and management effects' magnitude increased from NT to P. Key words: Image analyses, soil structural quality, conservationist management systems ResumoAs alterações dos atributos físicos do solo, principalmente nas camadas superficiais, são inerentes ao uso do solo. Mudanças estruturais podem influenciar diretamente a distribuição, estabilidade e especialmente a morfometria dos agregados, o que afeta o sistema poroso e todo o processo dinâmico da água e ar no solo. Entre as metodologias que permitem mensurar estas alterações a morfometria apresenta-se como uma ferramenta complementar aos métodos tradicionais. Objetivou-se com esse trabalho avaliar a qualidade estrutural de um Latossolo Vermelho Distroférrico sob diferentes manejos do solo, empregando técnicas morfométricas. Os tratamentos deste estudo foram: o sistema plantio direto (PD), pastagem (P) ambos com dez anos de cultivo e área sob vegetação nativa (VN -Cerrado). Foram amostrados agregados nas camadas de 0-0,10 e 0,10-0,20 m retidos no intervalo de 9,52 -4,76 mm, 4,76 -1,0mm, 1,0 -0,5mm de diâmetro, obtidos por meio de um jogo de peneiras padrão. As análises dos agregados foram realizadas por meio de imagens 2D obtidas via scanner e analisadas com o programa QUANTPORO. As variáveis morfométricas avaliadas foram: Área, Perímetro, Aspecto, Rugosidade, Diâmetro de Ferret e Compacidade. Amostras com estrutura deformada foram coletadas nas mesmas profundidades para as seguintes determinações: granulometria, estabilidade de agregados em água, argila dispersa em água, grau de floculação e o conteúdo da matéria orgânica. Os diferentes sistemas de manejo do solo modificaram a morfometria dos agregado...

show abstract

Maintenance of N cycling gene communities with crop-livestock integration management in tropical agriculture systems

Portilho

Savin

Borges

et al. 2018

Agriculture, Ecosystems & Environment

View full text Add to dashboard Cite

Physical properties and particle-size fractions of soil organic matter in crop-livestock integration

Cited by 19 publications

References 32 publications

Granulometric and oxidizable carbon fractions of soil organic matter in crop-livestock integration systems

Granulometric and oxidizable carbon fractions of soil organic matter in crop-livestock integration systems

Aggregates morphometry in a Latosol (Oxisol) under different soil management systems

Maintenance of N cycling gene communities with crop-livestock integration management in tropical agriculture systems

Contact Info

Product

Resources

About