Description
Item Description:"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 meeting 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"--Foreword.
Physical Description:1 online resource (v, 65 pages)
Bibliography:Includes bibliographical references.
ISBN:9780891182856
0891182853