Organic Matter Labile Fractions and Carbon Stocks in a Typic Quartzipsamment Cultivated With Sugarcane Harvested Without Burning

Filho, José de Souza Oliveira; Pereira, Marcos Gervásio; Aquino, Boanerges Freire de

doi:10.1590/1983-21252017v30n103rc

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…Almost all the organic carbon in eucalyptus harvest residue management is particulate organic carbon (POC) (Table 3). This proportion of POC is higher than that obtained in a study carried out by Oliveira Filho et al [59] in forest and sugarcane areas under Quartzarenic Neosol, who observed that approximately 60% of total organic C is in the form of POC. This difference between the results may be related to the fact that their study presented clay contents six times greater than in our study, which could favor a higher stabilization of C in the mineral fraction of the soil.…”

Section: Discussioncontrasting

confidence: 73%

Soil Carbon Stock and Indices in Sandy Soil Affected by Eucalyptus Harvest Residue Management in the South of Brazil

de São José,

Vargas,

Lisboa

et al. 2023

Soil Systems

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There has been limited research on the effect of eucalyptus harvest residue management on soil organic carbon (SOC) in subtropical environments. This research evaluated the effect on soil C indices of the following eucalyptus harvest residue managements: AR, with all forest remnants left on the soil; NB, where bark was removed; NBr, in which branches were removed; NR, which removed all residues; and NRs, which is same as NR but also used a shade net to prevent the litter from the new plantation from reaching the soil surface. C stocks within the soil depths of 0–20 cm and 0–100 cm increased linearly with the C input from eucalyptus harvest residues. In the layer of 0–20 cm, the lowest soil C retention rate was 0.23 Mg ha−1 year−1, in the NR treatment, while in the AR treatment, the retention rate was 0.68 Mg ha−1 year−1. In the 0–100 cm layer, the highest C retention rate was obtained in the AR (1.47 Mg ha−1 year−1). The residues showed a high humification coefficient (k1 = 0.23) and a high soil organic matter decomposition rate (k2 = 0.10). The carbon management index showed a close relationship with the C input and tree diameter at breast height.

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Section: Discussioncontrasting

confidence: 73%

Soil Carbon Stock and Indices in Sandy Soil Affected by Eucalyptus Harvest Residue Management in the South of Brazil

de São José,

Vargas,

Lisboa

et al. 2023

Soil Systems

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“…Loss et al (2010) also found the highest CLOM values at a depth of up to 10 cm, for areas under Forest-pasture System, indicating a more complex organic material for decomposition. According to Oliveira Filho et al (2017), the high similarity between CMOL and Total Carbon (TC) may explain the low response of CMOL in identifying changes in Organic Matter (OM) between the areas assessed, in addition to indicating a high dependence on CMOL in the content fraction of TC.…”

Section: Carbon and Nitrogen Stocksmentioning

confidence: 99%

Carbon and Nitrogen Stocks and Microbiological Activity Under Forest-Pasture System and Traditional Pasture in Pernambuco

et al. 2022

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“…One of the more specific ways of assessing total organic carbon (TOC), and consequently the effect of land use and management practices on soil quality is related to the evaluation of the light organic matter (LOM). LOM is the active fraction in the soil, composed of organic residues at different decomposition stages, and can vary rapidly with changes in soil management, depending on the recalcitrance of the original material, and influence the soil chemical quality [13]. LOM can be considered as accelerated dynamics in the soil, among SOM compartments [14].…”

Section: Introductionmentioning

confidence: 99%

Characteristics Physico-Chemical and Carbon Balance in Fluvic Entisol after Six Years Fertilization with Manure and Gliricidia

Primo

Menezes

Filho

et al. 2018

JEAI

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Soils in the semi-arid region of northeastern Brazil have low natural fertility and therefore, plant growth and productivity can be adversely affected. The application of mineral fertilizers is economically unfeasible by farmers in this region. The use of organic inputs found in farms, such as animal manure and the biomass of gliricidia leaves and branches (Gliricidia sepium Jacq. Walp), is a viable and low-cost option. Thus, the objective of this study was to evaluate influence of organic fertilizations over six years on the physical and chemical characteristics of a Fluvic Entisol cultivated with beans, cotton, corn and sunflower was evaluated. Fertilizations, of 20 Mg ha -1 year -1, were: GIsoil-incorporated gliricidia; GS -surface gliricidia; EI + GI -manure and incorporated gliricidia; EI + GS -soil -incorporated manure and surface gliricidia, EI -soil -incorporated manure; and controlwithout addition of organic fertilizer. In the combined applications, half the fertilizer came from each source. All fertilization systems decreased bulk density, compared to the control treatment, and in the EI + GS system, there was an increase in total soil porosity. The GS system resulted in the largest SOM stocks and C / N ratio. The EI + GI system increased the total phosphorus stock. The use and application of gliricidia biomass as a green fertilizer over time improves the soil physical and chemical conditions, promotes good agricultural productivity without the need of mineral fertilizers, being an alternative of high relevance in the reduction of costs in agricultural practices.

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Organic Matter Labile Fractions and Carbon Stocks in a Typic Quartzipsamment Cultivated With Sugarcane Harvested Without Burning

Cited by 5 publications

References 23 publications

Soil Carbon Stock and Indices in Sandy Soil Affected by Eucalyptus Harvest Residue Management in the South of Brazil

Soil Carbon Stock and Indices in Sandy Soil Affected by Eucalyptus Harvest Residue Management in the South of Brazil

Carbon and Nitrogen Stocks and Microbiological Activity Under Forest-Pasture System and Traditional Pasture in Pernambuco

Characteristics Physico-Chemical and Carbon Balance in Fluvic Entisol after Six Years Fertilization with Manure and Gliricidia

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