Dangiwa A, Ndawayo BA. Geospatial Analysis and Quadratic Regression Modelling of Soil Chemical Properties and Exchangeable Sodium in Aridisols of Sahel Savannah for Sustainable Soil Management . FJS [Internet]. 2026 Sep. 16 [cited 2026 Sep. 26];10(18):1-9. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/5990