Control Disease and Air Movement with Circulation Fans
Control Disease with Aeromax Circulation Fans. Good air movement around plants is vital to their health. Air movement reduces fungal disease on leaves, flowers and fruit, increases transpiration which in turn increases leaf cooling and nutrient uptake, brings fresh CO2. to the leaf and improves plant health and vigour.
The most efficient way to increase air flow around plants is with Horizontal Air Flow Circulation Fans.
Looking for a way to reduce the chance of crop diseases?
When the greenhouse cools down at night, the plants and other solid objects cool down faster than the air does. If the air next to the plant is still, it will cool down faster than the surrounding air, then drop excess condensation on the leaves. Fungi can then germinate on the leaves. You can reduce or eliminate this by keeping the air moving and the leaves dry with the Aeromax circulation fans.
Aeromax Circulation fans mix the air in the greenhouse thoroughly, bringing the warm air to the plants. Uniform temperature and humidity across the greenhouse are vital to ensure even production.
Reduce plant temperature in summer.
Just as people feel cooler when there is a breeze, so do plants. By using Aeromax Circulation fans, plant transpiration will increase, enabling the crop to stay cooler.
Having problems effectively distributing chemical products?
Aeromax fans greatly improve the distribution of chemical applications, especially to the leaves. They enable you to spray the entire greenhouse without being there. Ask us about this labour saving system.
If the air is still, oxygen levels near the leaves will be used up, and its continued availability to the plants will be diminished. The solution is to keep the air moving to provide your crop with a continually refreshed supply of CO2, which is one of the main growth ingredients.
Think you don’t need ventilation fans… think again.
‘I don’t need fans because I have good ventilation’
Most vents will be shut or mostly shut in the late afternoon until the next morning, so there is very little ventilation when the plants need it the most. Leaving the vents open at night will only make the problem worse as the air temperature will be much lower, resulting in even more condensation.
‘I don’t need fans because I have good heating’
Crops like tomatoes generate an enormous amount of water vapour during the day. Much of this moisture is retained in the greenhouse at night. A good hydronic heating system can help create an updraught and dry the plants. This consumes a large amount of energy. Much of this energy cost can be saved by using Horizontal Airflow Fans (HAF) in addition to the heat to dry the foliage.
‘Running fans at night is expensive’
The capital cost of Circulation Fans is very low – between $0.80 – $2.00 per square metre of greenhouse treated. The running costs are almost negligible compared to the benefits they produce. Each fan draws approximately 150 Watts and based on $0.15 per kWHr, costing only $0.0225 per hour. They are one of the best value investments in the greenhouse.
THREE SPEED FAN:
The fan run at 900rpm. This gives you more control and far less noise compared to single speed 1450rpm fans.
INEXPENSIVE TO RUN AND QUIET:
The Aeromax fan runs at 900rpm but due to the superior 6 pole motor, it has more torque, giving similar airflow at lower running cost and also far less noise compared to single speed 1450rpm fans.