Soil pH and Buffer pH Methodology:  Water and SMP/Sikora Buffer Reaction Time with Soil and a Laboratory Survey
Frank Sikora, University of Kentucky, 2007

Fertility of Vinifera Grapes in NC
David H. Hardy and John Havlin, NCDA&CS and NC State, 2008

Rapid Determination of the pH Buffering Capacity of Soils
David E. Kissel, UGA, Nashville, 2008

Fine Tuning Corn Nitrogen Management
Quirine M. Ketterings, Joe Lawrence, Jon Klapwyk, Michele Wang, Miriam Goler, Karl Czymmek, Cornell University, 2008

Fertility Issues in Switchgrass Production
Donald Tyler, University of Tennessee, 2008

Update on NAPT Programs and Activities
Janace Kotuby-Amacher, NAPT Coordinator, 2008

The University of Tennessee, Institute of Agricultural
John Wilkerson, Tennessee Agricultural Experiment Station, 2008

Long-Term Soil P and K Trends in Relation to Nutrient Removal in Corn-Soybean Rotations
Antonio Mallarino, Iowa State University, 2008

Immediate and Residual Effects of Urea and Pelleted Poultry Manure on Corn and Soil in Arkansas
Morteza Mozaffari, University of Arkansas, 2008

Efforts to Improve N Use Efficiency of Corn in Arkansas - Highlights of Research in Progress
Morteza Mozaffari, University of Arkansas, 2008

Combustion Nitrogen Analyzers
Elementar Americans, INC,  2009

PT Data Comparison
Bob Miller, ALP, 2009