When the greenhouse temperature and humidity is correct, the next most important factor in achieving high quality production and maximum output is that the climate is consistent throughout the glasshouse both vertically and horizontally.
There is no single way to achieve a perfectly even climate, but several technologies make a significant contribution. Circulation fans are usually a first step, blowing either horizontally or vertically – both types are available from CMW. Other technologies such as apex seals and side screens can further deter the development of cold spots in the greenhouse. For crops with benches or hanging gutters, fan tube systems mounted beneath the bench or gutters have become the norm.
Air handling units, which reduce the need for energy wasteful top ventilation by bringing in lower humidity fresh air from outside, are another increasingly popular solution and are a key component in the so called ‘new way of growing’ which will guide the Dutch industry to its very ambitious energy saving target for 2020.