120 Leo M. Walsh Soil Fertility Distinguished Lecture/Social Hour

Oral Session
S08 Nutrient Management & Soil & Plant Analysis
The history of Soil Fertility in the US during the past 75 years is broken down into three distinct eras and discussed. The three eras discussed are: The first 25 years--Soil Testing/Problem Solving Era; The second 25 years--The Fertilizer Era; and the last 25 years--The Environmental Era.

Soil Fertility & Plant Nutrition

Monday, November 2, 2009: 4:15 PM-6:30 PM
Convention Center, Room 403-404, Fourth Floor

Thomas Thompson and Richard Norman
4:15 PM
Introductory Remarks
4:20 PM
Soil Testing/Problem Solving Era- the First 25+ Years.
David Mengel, Kansas State Univ.; David Whitney, Kansas State University - Plant Pathology
4:40 PM
The Fertilizer Era-the Next 25+ Years.
Robert G. Hoeft, University of Illinois; Keith Kelling, University of Wisconsin-Madison; Noble Usherwood, Agr-Tech Services LLC
5:00 PM
The Environmental Era- the Last 25+ Years.
Gyles Randall, Univ. of Minnesota; James Baker, Ag Engineering; Gary Hergert, Univ. of Nebraska
5:20 PM
Concluding Remarks
5:30 PM
Div. S08/Div. S04 Social Hour
6:30 PM