The Control and Effects of Supplemental Carbon Dioxide in Air-Supported Plastic Greenhouses
This paper reports on work since 1961 at Washington State University to study the effects of supplemental CO/sub 2/ on plant growth. The objectives of this project, conducted jointly by the Washington Agricultural Research Center and the Agricultural Research Service, were: (a) to study the engineering problems involved and to develop systems for measuring and controlling the CO/sub 2/ content in air-supported plastic greenhouses, and (b) to gather information on effects of various levels and durations of application of CO/sub 2/ on selected plants.