Soil subgroup prediction via portable X-ray fluorescence and visible near-infrared spectroscopy

L Benedet, WM Faria, SHG Silva, M Mancini… - Geoderma, 2020 - Elsevier
Recently, portable X-ray fluorescence (pXRF) spectrometer and visible near-infrared (Vis-
NIR) spectroscopy are increasingly being applied for soil types and attributes prediction, but …

Formation and variation of a 4.5 m deep Oxisol in southeastern Brazil

M Mancini, SHG Silva, AE Hartemink, Y Zhang… - Catena, 2021 - Elsevier
This study combined proximal sensors and soil analyses for the assessment of a 4.5-m deep
Oxisol representative of southeastern Brazil. The soil was derived from gneiss. Soil samples …

National-scale spatial variations of soil phosphorus retention capacity in Brazil

JZ Barbosa, G Poggere, M Mancini, SHG Silva… - … of the Earth, Parts A/B/C, 2022 - Elsevier
Phosphorus (P) retention capacity of soils directly affects the management of phosphate
fertilization, and has economic and environmental importance. Brazil has expressive …

Pedogeomorphology and paleoenvironmental implications of large termite mounds at the Brazilian semiarid landscape

DF de Freitas, JC Ker, LA da Silva Filho, TTC Pereira… - Geomorphology, 2021 - Elsevier
Large termite mounds, regionally called Murundus, forming hillocks throughout the Brazilian
territory, occur, with different names, across the entire tropical belt. Little is known about the …

Allochthonous material originating from saprolite as a marker of termite activity in Ferralsols

A Bruand, A Reatto, É de Souza Martins - Scientific Reports, 2022 - nature.com
Ferralsols, which are estimated to cover 7.5 millions km2 worldwide, are deeply weathered
red or yellow soils found in the humid tropics. They are considered as the end of a …

Prediction of soil organic matter content by combining data from Nix ProTM color sensor and portable X-ray fluorescence spectrometry in tropical soils

AJG de Faria, SHG Silva, R Andrade, M Mancini… - Geoderma …, 2022 - Elsevier
Soil organic matter (SOM) measurement is of great agricultural and environmental
importance. Thus, the development of rapid, environmentally-friendly, economical and …

Morphology, chemical composition and origin of 2: 1 phyllosilicates in Bw horizons of latosols of the Brazilian Central Plateau: Contribution to the discussion of the …

A Bruand, A Reatto - Comptes …, 2022 - comptes-rendus.academie-sciences …
Résumé Polished sections of two Bw horizons collected in latosols located on the South
American Surface (LSAS) and the Velhas Surface (LVS) in the Brazilian Central Plateau …

Effects of winter and summer conditions on Cd fractionation and bioavailability, bacterial communities and Cd phytoextraction potential of Brachiaria decumbens and …

FHS Rabêlo, L Borgo, LF Merloti, VS Pylro… - Science of the Total …, 2020 - Elsevier
The interactions between soil properties, microorganisms, plant species and climate affect
cadmium (Cd) availability in tropical soils. In this study, we investigated the effects of …

Gibbsite crystallinity and morphology in ferralsols and bauxites

AS Gasparini, MPF Fontes, AA Pacheco, JC Ker - Minerals, 2022 - mdpi.com
Gibbsite is a common mineral, present in several soil classes around the globe, especially in
the tropical belt. It is also a key mineral in bauxite, the main natural source of aluminum. The …

[HTML][HTML] Presence of potassium-bearing 2: 1 phyllosilicates in B horizons of Ferralsols: consequences for total and exchangeable potassium content

A Bruand, M Brossard, P Jouquet, A Reatto, J Garnier… - Geoderma, 2024 - Elsevier
Although Ferralsols result from a deep weathering, small amounts of potassium-bearing 2: 1
phyllosilicates were identified their B horizons in many studies but the consequences on …