Our publication categories include documents to help participants stay abreast of current NAPT activities and provide access to documents of lasting interest.

Papers

• 2019 USDA-NRCS Soil Health Technical Note No. 450-03
• 2014 USDA-NRCS Soil Quality Indicators - Potentially Mineralizable Nitrogen
• 2006 Procedure for Silicon (Si) in Plant Tissue
• 2005 Replacing SMP Buffer with Sikora Buffer for Determining Lime Requirement of Soil
• 2005 Lime Requirement by the Measurement of the Lime Buffer Capacity
• 2004 Salt Concentration and Measurement of Soil pH
• 2004 In-line Dilution for AAS Instruments
• 2002 Organic Matter by Loss on Ignition
• 2002 Bicarbonate Phosphorus P Troubleshooting
• 2001 Preparation of Soil QC Materials for Analysis Laboratories
• 2000 Carbonate Analysis by Modified Pressure Calcimeter Method
• 1999 Saturation Percentage
• 1998 Soil pH Troubleshooting
• 1998 Measurement of Conductivity
• 1998 Berthelot Reaction for Ammonium-N
• 1982 Anaerobic Incubation for Potentially Mineralizable Nitrogen 

Newsletters

• Return here for occasional updates on the NAPT Program

Links of Interest

Soil Science Society of America | http://www.soils.org/

Crop Science Society of America | http://www.crops.org/

American Society of Agronomy | http://www.agronomy.org/

Manure Analysis Proficiency Testing Program | http://ghex.colostate.edu/map/

Compost Analysis Proficiency Testing Program | http://tmecc.org/cap/

Soil and Plant Analysis Council | http://www.spcouncil.com/

AOAC | http://www.aoac.org/

Canadian Soil Science Society | http://www.csss.ca/

SERA6 Website Publications | http://www.clemson.edu/agsrvlb/sera6/publications1.htm

Southern Region State Soil Testing Procedures | http://www.clemson.edu/agsrvlb/sera6/srbull409aug09versionupdatedISBNbull.pdf

Crops & Soils, Fall 2008 Article | NAPT Working for You

Crops & Soils, Winter 2009 Article | NAPT Working for You

Crops & Soils, Mar-Apr 2009 Article | NAPT Working for You

Crops & Soils, May-June 2009 Article | NAPT Working for You

Crops & Soils, July-Aug 2009 Article | NAPT Working for You