Soil texture prediction in tropical soils: A portable X-ray fluorescence spectrometry approach

• Published in: Geoderma Vol. 362; p. 114136
• Main Authors: Silva, Sérgio Henrique Godinho, Weindorf, David C., Pinto, Leandro Campos, Faria, Wilson Missina, Acerbi Junior, Fausto Weimar, Gomide, Lucas Rezende, de Mello, José Márcio, de Pádua Junior, Alceu Linares, de Souza, Igor Alexandre, Teixeira, Anita Fernanda dos Santos, Guilherme, Luiz Roberto Guimarães, Curi, Nilton
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.03.2020
• Subjects: Brazilian soils; prediction; Prediction models; Proximal sensors; Soil particle size; soil texture; tropical soils; X-ray fluorescence spectroscopy; MAE; R2; CV; RF; Prediction models; Soil particle size; pXRF; GLM; RMSE; SVM; Proximal sensors; Brazilian soils

•Soil texture of 1565 samples was determined and analyzed with pXRF in Brazil.•pXRF data was successfully predicted soil texture through SVM and RF algorithms.•Predictions were accurate independently of soil class, parent material, and horizon.•Fe and Al positively correlated to clay content due to...