Estoque de carbono orgânico no solo afetado por adubação orgânica e sistemas de culturas no Sul do Brasil

Steiner, Fábio; Pivetta, Laércio Augusto; Zóz, Tiago; Pinto, Artur Soares

doi:10.5433/1679-0359.2012v33supl1p2775

Cited by 6 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, other studies agree that the resulting charcoal in the soil due to the use of fire would contribute to increases in contents of more recalcitrant soil compartments (STEINER et al, 2012) and decreases in more labile ones, such as POC. This effect was found in the present study, since the treatments showed higher MAOC than POC contents (Table 2), mainly in the surface layers with the use of fire.…”

Section: Resultsmentioning

confidence: 86%

Total and Particulate Contents and Vertical Stratification of Organic Carbon in Agroforestry System in Caatinga

Iwata

Brandão

Braz³

et al. 2021

Rev. Caatinga

View full text Add to dashboard Cite

The objective of this work was to evaluate the variation in total and particulate organic carbon contents, carbon vertical stratification, and sensitivity index of organic matter fractions in soils with organic residues arranged in alleys in an agroforestry system, with and without use of fire, in the Caatinga biome, in Brazil. The experiment was conducted in a split-plot arrangement with four replications, with the factor fire in the plots, and the factor organic residues in the subplots. The organic residues used consisted of Gliricidia sepium plants; G. sepium plants and carnauba processing residue; G. sepium plants and bio-compost; and G. sepium plants, carnauba processing residue, and bio-compost, which were evaluated in three soil layers. The alleys with carnauba processing residue, G. sepium plants, and bio-compost presented a better maintenance of particulate, and mineral-associated organic carbon contents. Thus, the agroforestry management in alleys using these three residues was efficient for the maintenance of labile and recalcitrant organic matter compartments. Particulate organic carbon was more sensitive to changes in soil management than total organic matter content, in all alleys, presenting higher sensitivity indexes.

show abstract

Section: Resultsmentioning

confidence: 86%

Total and Particulate Contents and Vertical Stratification of Organic Carbon in Agroforestry System in Caatinga

Iwata

Brandão

Braz³

et al. 2021

Rev. Caatinga

View full text Add to dashboard Cite

show abstract

“…Therefore, the addition of organic sources has a high capacity to increase the soil's organic carbon stock, due to the entry of organic matter, in addition to increasing the availability of nutrients. Steiner et al (2012), states that the soil organic carbon stock can be altered with greater or lesser intensity, as it is one of the most sensitive properties affected by management descisions. A reduction in the initial content for this element was observed from the planting of cassava, according to Yada et al (2015), the low levels for this element are related to the removal of the natural cover from the soil for the farm, reducing the capacity of recovery of soil chemical characteristics.…”

Section: Resultsmentioning

confidence: 99%

Effect of Different Sources of Fertilization on Chemical Properties of Soil Under Cassava Cultivation in Western Pará, Brazil

Pimentel¹,

Reis²,

Portela³

et al. 2020

JAS

View full text Add to dashboard Cite

Nutrient management becomes essential in soils with low natural fertility, so the use of organic fertilizers can improve chemical properties of soil and reduce production costs. The objective of this study was to evaluate the effect of different fertilization sources on the chemical properties of soil under cassava cultivation. The experiment was conducted between 2017/2018 in the community of Boa Esperança, Santarém-PA using the cultivar Bem-te-vi, in the randomized block design with 4 treatments: T1 (without fertilization), T2 (fertilization NPK), T3 (organic fertilization with poultry manure), T4 (fertilization with cattle manure), with 5 replicates. The soil samples were analyzed for the contents K+, Ca²+, pH in H2O and KCl, Al³+ and soil organic carbon content (TOC). The data were submitted to analysis of variance and the means were compared by the Tukey test at 5% probability, using the software MINITAB© version 18. There were statistical differences between the treatments for all the chemical properties analyzed. The findings of the analysis were that fertilization with catle manure and NPK were the same and differed from the other treatments for the contents of K+, pH in H2O and KCl, for Ca²+ and TOC. The treatment without fertilization obtained the lowest values differing from the others, for Al³+. The source from NPK obtained the lowest content in the soil. The treatments with organic fertilizers had higher levels of the above nutrients in the soil. The chemical properties of the soil were altered from the different management systems for the cultivation of cassava.

show abstract

“…The results of TOC and N indicate that the input of organic fertilization may have contributed to a smaller reduction, because similar results of TOC between E35 and NF were verified in the surface layers. Analyzing the effects of swine waste application under different cropping systems, Steiner et al (2012) andCastro Filho et al (2003) found an increase in soil organic carbon content.…”

Section: Discussionmentioning

confidence: 99%

Soil Organic Matter in Areas Under Yerba Mate Cultivation and Swine Waste Application

Pereira

Guareschi

Pinto

et al. 2021

View full text Add to dashboard Cite

Carbon and nitrogen contents, as well as their chemical fractions (humic acid - HAF, fulvic acid - FAF, humin - HUM) and particle-size fractions (particulate organic carbon - POC, mineral-associated organic carbon - MAOC) of organic matter were evaluated in areas cultivated with yerba mate (Ilex paraguariensis) with 35 (E35) and 45 (E45) consecutive years of cultivation, in addition to a native forest area (NF), taken as reference. The soils of the study area were classified as Cambissolo Háplico (Inceptisol). Soil samples were collected at depths of 0.0-0.05, 0.05-0.10, 0.10-0.20 and 0.20-0.40 cm. A completely randomized design in split plots (3 areas and 4 depths) with 4 replicates was used. The E45 area, due to the longer cultivation time and the addition of organic fertilizer, had higher TOC, N and POC contents in comparison to the E35 area, with similar values of these attributes being observed in the forest area at some depths. The most stable carbon fractions (MAOC and HUM) did not vary between cultivated areas (E35 and E45); however, there were reductions of 25 and 14% (HUM 0-5 cm) and 12 and 21% (MAOC 5-10 cm) in these fractions, respectively, in comparison to the native forest. There was no difference between the evaluated areas for FAF, but HAF values were higher in the native forest area than in the cultivated areas.

show abstract

Estoque de carbono orgânico no solo afetado por adubação orgânica e sistemas de culturas no Sul do Brasil

Cited by 6 publications

References 16 publications

Total and Particulate Contents and Vertical Stratification of Organic Carbon in Agroforestry System in Caatinga

Total and Particulate Contents and Vertical Stratification of Organic Carbon in Agroforestry System in Caatinga

Effect of Different Sources of Fertilization on Chemical Properties of Soil Under Cassava Cultivation in Western Pará, Brazil

Soil Organic Matter in Areas Under Yerba Mate Cultivation and Swine Waste Application

Contact Info

Product

Resources

About