Management systems in the subtropical region of Brazil: aggregation in the assessment of the chemical quality of fragile soils DOI
Luiz Alberto da Silva Rodrigues Pinto, Robert Ferreira,

Gabriel Coutinho Oliveira de Lemos

et al.

Experimental Agriculture, Journal Year: 2025, Volume and Issue: 61

Published: Jan. 1, 2025

Abstract Soil health is a term used to describe the general state or soil quality in an agroecosystem. The study of aggregate formation pathways has been successfully assess quality, especially chemistry, particularly measuring impact different forms use and management on health. This aimed (i) verify contribution biogenic (Bio) physicogenic (Phy) aggregates fertility; (ii) evaluate total carbon (TC), nitrogen (TN), phosphorus (TP), potassium contents their respective stoichiometric ratios these aggregates; (iii) analyse relationship between P fractions (labile, moderately labile, non-labile) aggregates. Three systems were evaluated (permanent pasture, PP; no-tillage system, NT; + Urochloa NT+B) as well reference area (Atlantic Forest biome vegetation, NF). All sample areas are located soils with sandy texture surface horizons. Aggregates separated, identified, classified according genesis into Bio (biotic factors) Phy (abiotic factors). Only PP system had significant increase values TC, TN, TP, TK, organic inorganic P. NT+B favoured proportional TC content compared NF NT areas, subsurface layer (ranging from 31 44%). For aggregates, there increments TN ones, (8 30% for 56 239% TN). also lowest C/N ratio (< 30), highest C/P (> 33), greater participation form TP (between 26 42%). chemical attributes affected differently by systems, systems. results verified strengthen hypothesis that structural units important sources nutrients reiterate importance studying assessment

Language: Английский

Soil carbon storage in Brazilian drylands: A review DOI
Lucas T. Greschuk, João M. Villela, Stoécio Malta Ferreira Maia

et al.

CATENA, Journal Year: 2025, Volume and Issue: 257, P. 109144 - 109144

Published: May 20, 2025

Language: Английский

Citations

0
Management systems in the subtropical region of Brazil: aggregation in the assessment of the chemical quality of fragile soils DOI
Luiz Alberto da Silva Rodrigues Pinto, Robert Ferreira,

Gabriel Coutinho Oliveira de Lemos

et al.

Experimental Agriculture, Journal Year: 2025, Volume and Issue: 61

Published: Jan. 1, 2025

Abstract Soil health is a term used to describe the general state or soil quality in an agroecosystem. The study of aggregate formation pathways has been successfully assess quality, especially chemistry, particularly measuring impact different forms use and management on health. This aimed (i) verify contribution biogenic (Bio) physicogenic (Phy) aggregates fertility; (ii) evaluate total carbon (TC), nitrogen (TN), phosphorus (TP), potassium contents their respective stoichiometric ratios these aggregates; (iii) analyse relationship between P fractions (labile, moderately labile, non-labile) aggregates. Three systems were evaluated (permanent pasture, PP; no-tillage system, NT; + Urochloa NT+B) as well reference area (Atlantic Forest biome vegetation, NF). All sample areas are located soils with sandy texture surface horizons. Aggregates separated, identified, classified according genesis into Bio (biotic factors) Phy (abiotic factors). Only PP system had significant increase values TC, TN, TP, TK, organic inorganic P. NT+B favoured proportional TC content compared NF NT areas, subsurface layer (ranging from 31 44%). For aggregates, there increments TN ones, (8 30% for 56 239% TN). also lowest C/N ratio (< 30), highest C/P (> 33), greater participation form TP (between 26 42%). chemical attributes affected differently by systems, systems. results verified strengthen hypothesis that structural units important sources nutrients reiterate importance studying assessment

Language: Английский

Citations

0