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This document describes analytical methods and procedures used in the soil testing laboratory at Louisiana State University. It provides details on sample preparation, determining soil pH, lime requirement, and levels of calcium, magnesium, potassium, sodium, and phosphorus. Soil samples are air dried, ground, and extracted using hydrochloric acid or acid fluoride solutions. Extracts are analyzed on flame photometers or atomic absorption spectrometers to determine nutrient levels. Over 15,000 soil samples a

Author

Debraj Dhar Purkayastha

Language

EN