This document presents analytical data from a soil collection study including pH, organic carbon content, cation exchange capacity, base saturation, and concentrations of calcium, magnesium, manganese, aluminum, and acidity across 15 soil samples labeled K, I1-I7, G1-G3, R1-R6, and B1-B5. The data includes measurements of pH using both KCl and water extractions, organic carbon percentage, and concentrations of various elements extracted using different methods.