With the cooperation of numerous public and private soil testing laboratories, IPNI periodically summarizes data on soil test levels in North America (NA). The 2010 summary contains information about phosphorus (P), potassium (K), sulfur (S), magnesium (Mg), zinc (Zn), chloride (Cl-), and pH.
This summary can be viewed as an indicator of the nutrient supplying capacity or fertility of soils in NA. This is the tenth summary completed by the Institute, with the fi rst dating back to the 1960s. The summary offers a snapshot view of soil test levels in the U.S. and Canada in 2010, but also provides a comparison to the previous two summaries which were completed in 2001 and 2005. Since the 2010 summary is the third in which laboratories were asked to contribute complete frequency distributions of soil test results, temporal changes in soil test level distributions can be viewed for the second time for states and provinces.
|Soil Test Levels in North America on CD ROMThe optional CD-ROM contains a PDF file showing the pages of the report, a PowerPoint file of all figures (graphs) in the report, and an Excel workbook of the major tables to facilitate construction of custom graphs for regions of interest.|
|Printed version + CD packageGet both the full color printed report and CD in this package deal. You save $10.00 by ordering the package vs. ordering each item separately.|