This special publication includes the papers in two related symposia of general interest to agronomists. AGRONOMY IN A CHANGING WORLD emphasizes the current political, economic, and technological constraints and opportunities for development of agronomy. RESEARCH NEEDS FOR THE SEVENTIES emphasizes the agronomic research needs and opportunities for the years immediately ahead.
The two symposia were held at the meetings of the American Society of Agronomy, the Crop Science Society of America, and the Soil Science Society of America in Tucson, Arizona, in August, 1970. AGRONOMY IN A CHANGING WORLD was organized by C. A. Black, President-Elect of the American Society of Agronomy. The title of this symposium was used as the theme of the meetings. RESEARCH NEEDS FOR THE SEVENTIES was organized by G. E. Van Riper on behalf of the Agronomic Industry Committee.
N. D. Bayley, Director, Science and Education, U. S. Department of Agriculture, Washington, D. C.
C. A. Black, Distinguished Professor, Agronomy Department. Iowa State University, Ames, Iowa.
W. C. Burrows, Agronomist, Department of Research Coordination, Deere & Co., Moline, Ill.
M. W. Forth, Manager, Product Concepts, Deere & Co., Moline, Ill.
R. F. Holland, Director, Agronomic Research, DeKalb AgResearch Inc. DeKalb, Ill.
W. F. Hueg, Jr., Director, Minnesota Agricultural Experiment Station, Univ. of Minnesota, St. Paul, Minn.
F. C. Lindvall, Vice President, Engineering, Deere & Co., Moline, Ill.
D. E. McKee, Director, Market Economics Department, Deere & Co., Moline, Ill.
G. L. Mehren, President, The Agribusiness Council, Inc., 299 Park Ave., New York, N. Y.
H. E. Meyers, Dean, College of Agriculture, University of Arizona, Tucson, Ariz.
M. L. Peterson, Professor, Department of Agronomy and Range Science, University of California, Davis, Calif.
G. E. Van Riper, Manager, Research Coordination, Deere & Co., Moline, Ill.