Organic matter and isotopic composition of soils under different management systems in western Paraná State, Brazil

Rosset, Jean Sérgio; Lana, Maria do Carmo; Schiavo, Jolimar Antônio; Píccolo, Marisa de Cássia; Pinto, Luiz Alberto da Silva Rodrigues; Ziviani, Melania Merlo; Pereira, Marcos Gervásio

doi:10.1007/s12665-022-10261-8

Cited by 2 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the PCA analysis (Figure 5), it was clear how the PP domain stands out from the others. The results confirm the potential that well-managed pastures have to increase quantity (Oliveira et al, 2021;Martins et al, 2020;Santos et al, 2020;Troian et al, 2020;Knicker et al, 2012) and quality (Assunção et al, 2019;Silva et al, 2019a;Rosset et al, 2022) of SOM, as well as promoting soil aggregation (Rosset et al, 2019;Vicente et al, 2019). The PCA results also show the grouping of the NT and NT+B areas with the NF area, indicating that these studied production areas did not induce changes in the evaluated variables compared to the NF area, a pattern already observed by other authors (Medeiros et al, 2022;Ferreira et al, 2020;Gmach et al, 2019).…”

Section: Discussionsupporting

confidence: 88%

“…The results observed in the PP system are evident in several studies comparing PP and notill systems (Medeiros et al, 2022;Pinto et al, 2022;Falcão et al, 2020;Ferreira et al, 2020;Medeiros et al, 2020;Santos et al, 2020;Wuaden et al, 2020;Ozório et al, 2019;Rosset et al, 2019). No differences were observed in soil aggregation parameters in the NT, NT+B and NF areas, indicating the benefits that the production systems (NT, NT+B) have on the formation of soil aggregates, similar to the NF results.…”

Section: Discussionsupporting

confidence: 74%

“…Soil quality (SQ) is fundamental to maintaining sustainable agricultural systems that meet global food, fiber, and energy needs (Damian et al, 2023). In recent decades, SQ has been discussed by the scientific community worldwide (Simon et al, 2022;Thomaz and Antoneli 2022;Valani et al, 2022;Burak et al, 2022;Pinto et al, 2022) and defined as the ability of a particular soil type to function within the limits of the natural or managed ecosystem to maintain crop productivity (Valani et al, 2022). Given the demand for food to feed the world's population, human activities are causing changes in natural ecosystems (Fao, 2006).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of different agricultural systems on organic matter and aggregation of a medium-textured soil in subtropical region

Ozório,

Rosset,

Carvalho

et al. 2024

Rev. ambiente água

View full text Add to dashboard Cite

This work evaluates the impact of different agricultural systems on the humic fractions of organic matter (SOM) and soil aggregation in a medium-textured soil in a subtropical region of Brazil. Three managed areas and a reference area were evaluated: permanent pasture (PP), no-till (NT), no-till+Brachiaria (NT+B) and native forest (NF). Deformed soil samples were collected in the layers 0-0.05; 0.05-0.10; 0.10-0.20 and 0.20-0.40 m, and unformed soil samples in the layers 0-0.05 and 0.05-0.10 m. After collection, total organic carbon (TOC) analysis, chemical fractioning of SOM and aggregate stability analysis were performed. The PP area presented the highest TOC and C-FA contents in the first three layers evaluated. In the 0.10-0.20 m layer, the C-HUM contents in the NT+B area were 1.9 times higher than in the NT area, and in 0.20-0.40 m they were 6.6 times higher. The PP area obtained the best structural indicators, especially higher WMD, GMD and % of macroaggregates. The two areas using direct seeding presented a percentage of macroaggregates higher than 37.28% in the superficial layer. The PP management provided increases in TOC levels and, consequently, humic substances, besides the formation of more stable aggregates. The NT+B system showed promise in increasing TOC and humic substances, especially at depth, even with a short implementation period. The increase in TOC and humic substances provided by the grasses contributes to the formation of more stable aggregates and, consequently, to the improvement of the quality of medium-textured agricultural soils. Keywords: aggregate stability, carbon fractions, climate change, humic substances.

show abstract

Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of different agricultural systems on organic matter and aggregation of a medium-textured soil in subtropical region

Ozório,

Rosset,

Carvalho

et al. 2024

Rev. ambiente água

View full text Add to dashboard Cite

show abstract

Evaluating Land Management Options to Optimize Soil Organic Matter Retention in Oxisols: Case Studies Involving Brazil and Hawaii

Aide

2024

Sustainable Agroecosystems - Principles and Practices [Working Title]

View full text Add to dashboard Cite

Oxisols are extremely weathered soils developed largely across equatorial regions. Emerging agricultural land management techniques address soil degradation caused by conventional tillage, nutrient neglect, and other agronomic issues. In Brazil, no-till systems support the maintenance of an epipedon residue protective layer that improves soil organic matter contents, strengthens soil structures, fosters nutrient provision, and the development of a robust soil biology community. Growing awareness by Brazilian producers focuses on soil enrichment to enhance crop productivity but also to support ecosystem services and other facets associated with soil health. In Hawaii, the nearly total decline of sugarcane and pineapple production has left large acreages of land that have suffered long-term soil erosion and nutrient impoverishment. The Hawaiian agricultural community is attempting to support the state’s food security, primarily by creating small-acreage farms that produce an amazing diversity of foods and center soil sustainability around utilizing locally proven soil health techniques. Both entities have community-based extension services, compelling research components, and producer-oriented digital tool offerings.

show abstract

Organic matter and isotopic composition of soils under different management systems in western Paraná State, Brazil

Cited by 2 publications

References 29 publications

Effects of different agricultural systems on organic matter and aggregation of a medium-textured soil in subtropical region

Effects of different agricultural systems on organic matter and aggregation of a medium-textured soil in subtropical region

Evaluating Land Management Options to Optimize Soil Organic Matter Retention in Oxisols: Case Studies Involving Brazil and Hawaii

Contact Info

Product

Resources

About