Whether growing in a greenhouse or a warehouse, the right air conditions are essential
Plants are living organisms and just like humans, they like to feel at home. Whether it be warm or cold, dry or humid, crops have desired conditions, based on their origin.
Supplying crops with what they need is the key to successful farming. In indoor settings, such as semi-closed greenhouses or completely closed off warehouses, every single factor is taken into consideration and cared for. Air conditioning, dehumidifiers, fans and vents are all part of the system designed to keep plants healthy and fruitful.
In these settings, space is precious, the denser you place your crops, the better the value. But this creates problems. Within the dense foliage, micro-climates appear. These are small pockets of air in which conditions are different than the rest of the space. Due to plants constantly transpiring and breathing, they change the conditions surrounding them.
These pockets of air may have different temperatures and humidity levels than we desire and try to maintain, which can lead to smaller yields, diminished quality and may allow for diseases such as Botrytis to appear.
A common solution for this is with the use of fans and vents. Though they do diffuse small pockets of humidity and hot or cold air, due to their simple linear design, they don’t assist in creating homogenous conditions. A simple fan moves air forward, creating different air conditions as the air is further away from the fan itself.
The best way to combat this is through efficient air circulation.
Good circulation is important but it is hard to achieve. It is necessary that all areas of the growing space are reached equally and the air travels through different heights as well as over horizontal space, allowing it to move through the foliage as well as the base of the plants.
Air circulation is a matter of physics and it takes the correct design and engineering to achieve complete uniformity.