Soil Lab Methods

Table of Contents

• Sample Preparation
• Lab Numbers
• Sample Check-In
• Sample Extraction -  Mehlich 1
• Soil pH
• Buffer pH
• Sulfur (Sulfates)
• Saturated Extract (SE)
• Nitrate-Nitrogen ISE
• Nitrate-Nitrogen Cd. Rd.
• Organic Matter
• Soluble Salts
• Quality Control for Soil Testing

References

1. Isaac, R. A. (ed.). Reference Soil Test Methods for the Southern Region of the United States. Southern Cooperative Series Bulletin 289, September 1983.
2. S. J. Donohue. Reference Soil and Media Diagnostic Procedures for the Southern Region of the United States. Southern Cooperative Series Bulletin No. 374, August 1992.
3. Jones, Benton J. Jr. Laboratory Guide for Conducting Soil Tests and Plant Analysis, 2001