ISHS Acta Horticulturae 440: International Symposium on Plant Production in Closed Ecosystems
DECREASING THE ENVIRONMENTAL LOAD BY A PHOTOSYNTHETIC BASED SYSTEM FOR GREENHOUSE CLIMATE CONTROL |
| Authors: | J.M. Hansen, N. Ehler, P. Karlsen, K. Høgh-Schmidt, E. Rosenqvist |
| Keywords: | climate control, Dendranthema grandiflorum, energy, greenhouse, model, photosynthesis |
| Abstract:
A system for climate control based on a photosynthetic model found to decrease the energy consumption of a small daylight environmental chamber compared to a similar chamber with a standard climate control system. The standard treatment depended on predetermined setpoints for night and day while the model-based climate control depended on predetermined setpoints for the night and model-based setpoints for the day. Dry matter production was unchanged in periods with limited irradiance and increased in periods with higher irradiance compared to a standard climate control. Plant height, leaf area and specific leaf weight were different in the two control systems. | |
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