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North American Programs
The North American Program consists of six regions, each led by an IPNI scientific staff member. Dr. Paul Fixen is Coordinator of the Americas Group and North American Program.

Below you will find links to many of the popular features and publications that have been produced from the North American Program of the Institute.
Presentations New/Current Features Publications

Phosphorus: Worldwide Supplies and Efficiency

Presentation made by Paul Fixen at the 2009 Manitoba Agronomy Conference in Winnipeg on December 16, 2009

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Software downloads & self guided tutorials

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Site-Specific Management Guidelines

The objective of the Site-Specific Management Guidelines series is to provide a mechanism to assemble expert knowledge in a timely fashion on site-specific management in a form useful to farmers and their advisers. Each Guideline addresses a specific issue related to site-specific soil and crop management. Currently there are 45 titles in the series, which can be accessed from the list below.

List of SSMG topics


The Fertility of North American Soils

This is a report of the phosphorus (P) and potassium (K) fertility of the soils of North America. The data used in this report were provided by 70 major North American public and private soil testing laboratories that analyzed 3.4 million soil samples submitted to them by farmers and their advisers for the purpose of determining the amount of plant nutrients to apply prior to the 2005 growing season. As such, this summary is probably the most comprehensive evaluation of the status of soil fertility in North America ever conducted.

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Crop Nutrition PowerPoint Series

The Crop Nutrition Series of PowerPoint presentations features crop nutrition and management information prepared by IPNI North American Program scientific staff. Each presentation includes approximately 40 slides each, with extensive speaker notes and reference information.

Listing of topics


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