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Methods & Guides

Field Guides

Field Book for Describing and Sampling Soils — standards for observing and recording soil and site characteristics.

Field Indicators of Hydric Soils, version 8.1, 2017 (PDF; 16.6 MB)

Soil Survey Office Laboratory References

Soil Survey Field and Laboratory Methods Manual (SSIR 51), version 2.0 (1-31-14; PDF; 10.3 MB)

Soil Survey Field and Laboratory Methods Manual (SSIR 51), version 1.0, obsolete. (11-2-09; PDF; 8.8 MB)

Material Safety Data Sheets (MSDS) and recommended chemical disposal procedure (10-23-09; PDF; 3.2 MB)

Laboratory Methods and Information

Lab Methods Manual (SSIR 42) - soil laboratory methodology and reference for the laboratory analyst.

Soil Survey Laboratory Information Manual (SSIR 45) - Companion reference to the Laboratory Methods Manual, SSIR No. 42. Sampling methodology, descriptions of KSSL data sheets, and other information to help users of lab data.

A Routine Laboratory Method to Determine Phosphorus Availability, Capacity, and Release Characteristics for Soils (SSIR 55) (PDF; 1.1 MB)

Testing Methods for Phosphorus and Organic Matter

Soil Sample Submission Protocol for the KSSL (11-29-16; PDF; 1.61 MB) - Documentation and worksheets (below) necessary for KSSL sample submission.