Source: International Plant Nutrition Institute

The International Plant Nutrition Institute is offering a free Webinar Jan. 26, 2011, discussing soil test levels of fertilizer in North America in 2010. 

Paul Fixen, Ph.D., senior vice president and director of research, IPNI, will present the highlights of the recently released summary, which compiled the results of approximately 4.4 million soil tests from more than 60 laboratories in the U.S. and Canada.

The samples were collected in the fall of 2009 and spring of 2010.

This was the tenth summary of soil test results published by the Institute and its predecessors, dating back to the 1960s.

The information in the 2010 summary is more comprehensive and provides a basis for greater interpretation than previous summaries.

The new report includes information about phosphorus (P), potassium (K), sulfur (S), magnesium (Mg), zinc (Zn), chloride (Cl), and pH.

Dr. Fixen will also describe the process of putting the summary together and possible trends and implications of the data.

For example, soil test P decline in the Corn Belt is significant since a high percentage of samples from the region now test below critical levels and call for annual P applications to avoid yield reductions.

The webinar will take place at 12 p.m. to 1 p.m. Central (1 p.m. to 2 p.m. Eastern) on Jan. 26.

Space is limited. Reserve your Webinar seat now at: http://info.ipni.net/webinar.