PHYSIOLOGICAL/CLIMATOLOGICAL RESEARCH DIRECTED TOWARDS EFFICIENT USE OF ENERGY IN PROTECTED CULTIVATION
Physiological/climatological research related to a more efficient use of energy in protected cultivation is aiming at the optimalisation of current measures to save energy and/or at the indication of new possibilities.
To specify a relevant physiological/climatological approach it is useful to indicate various types of energy saving measures, applied or applicable in practice:
- Measures, primarily aiming at optimalisation of climate control or at modification of current systems of growing crops.
- Optimalisation of climate control, related to diurnal courses of light intensity.
- Growing systems - for suitable crops and aiming at current goals with respect to e.g. harvest time - aiming at the saving of energy by means of growth limitation in low light intensity periods and by means of speeding up growth in periods of higher light intensity.
- Possibilities related with limitation of heat losses:
- Application of double glazing of glasshouses etc.
- Possibilities primarily related with improved utilization of space in glasshouses:
- Improved utilization of soil surface: adaptation of distance between plants in relation to size of plants (mutual shading).
- Improved utilization of the glasshouse volume: growing of plants in 2 layers (also application of smaller glasshouse volume with crops with small height?).
- Possibilities primarily related with the heating system:
- Changes in pattern of heat transfer, e.g. by the introduction of heating systems with low water temperature.
- New heating systems with an increased ratio radiative/convective heat transfer (total energy systems?).
Gaastra, P. (1981). PHYSIOLOGICAL/CLIMATOLOGICAL RESEARCH DIRECTED TOWARDS EFFICIENT USE OF ENERGY IN PROTECTED CULTIVATION. Acta Hortic. 107, 45-48
DOI: 10.17660/ActaHortic.1981.107.7
https://doi.org/10.17660/ActaHortic.1981.107.7
DOI: 10.17660/ActaHortic.1981.107.7
https://doi.org/10.17660/ActaHortic.1981.107.7