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Ventilation is the
circulation of air in the
atmosphere,
typically between a room, a
greenhouse,
etc., and the outside; Ventilation
dilutes and
removes air
moisture and helps abate high
temperatures.
Constant circulation of fresh air is an essential factor in
health
of indoor
and
greenhouses plants; The
microclimate
around plants
have a significant effect on their
health
and development.
Air circulation reduce
climate
differences and maintain a uniform temperature and
humidity
throughout a greenhouse. High humidity and
condensation
on plants lead to
disease and other humidity related problems. Condensation
problems occur when moisture in warm air condenses on cool leaf and
covering surfaces.
Ventilation can be a natural or a mechanical process for supplying
outside air to an enclosure or space. If the natural air circulation
is insufficient the air movement can be improved using several
techniques for example an exhaust fan can creates excellent
ventilation and help removing air from the enclosure... |
