Hydroponics as a Hobby
Growing Plants Without Soil
TABLE OF CONTENTS
Requirements for Plant Growth
Symptoms of Nutrient Deficiencies
Experiments to Try
Sources of Additional Information
This circular was prepared by James C. Schmidt, Assistant
Extension Horticulturist, John M. Gerber, Assistant Professor
of Horticulture, and J. W. Courter, Professor of Horticulture,
University of Illinois at Urbana-Champaign, based on an earlier edition
prepared by J. D. Butler and N. F. Oebker.
The information given in this circular is for educational purposes only.
Reference to commercial products or trade names does not constitute an endorsement
by the University of Illinois and does not imply discrimination against
other similar products. The reader is urged to exercise the usual caution
in making purchases or evaluating product information.
Issued in furtherance of Cooperative Extension Work, Acts of May 8 and June
30, 1914, in cooperation with the U.S. Department of Agriculture. Dennis
Campion, Interim Director, Cooperative Extension Service, University of
Illinois at Urbana-Champaign. The Cooperative Extension Service provides
equal opportunities in programs and employment.