Farmers have been using greenhouses for many hundreds of years. They are used to grow plants such as flowers, vegetables, herbs and, these days, medical marijuana. The reason greenhouses are used is because of the huge benefits that they offer. Included in these benefits is the localised environmental protection and control that the greenhouse provides.
Environmental protection includes protection from ice, snow, hail, winds and other negative impacting natural weather conditions. Furthermore, greenhouses also provide protection from birds and other animals and the damages they cause, along with general produce consumption. Some animals, especially insects still can infest a greenhouse and other solutions are available but are not being addressed here.
As a result of the greenhouses protective environmental barrier, many growers and farmers alike enjoy the benefits of increased quality of plant and boosted produce yields. Thus, increased revenue potential.
Despite all the positive benefits of greenhouses, they do bring in their own issues and problems.
Some of these issues may include:
- The greenhouse overheats during the day.
- The greenhouse becoming too cold at night.
- Perspiring plants, watering and misters can cause humidity levels to build up inside the greenhouse. Thus causing even more issues such as mould or mildew.
- Ventilation and space heating can cause the greenhouse to become too dry and thus not humid enough for some plants.
- In greenhouses with restricted or no ventilation and/or no circulating airflow can cause stagnant air, wet pockets and other issues.
- To keep the greenhouse cooler shade cloth is used and the lighting is required to be introduced. Now you have the added issues of controlling light & UV influx but still, require lighting.
To manage all these issues many solutions have been put into play. From gas heaters, roof ventilation to internal fans, cooling towers, misters and so many other systems and processes.