« Back to N° 3: To reconcile economic development and preservation of the environment |
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Head of greenhouses and research fields, Nickerson-Zwaan, Made (Netherlands) |
Improving the environmental efficiency of our greenhouses « As most growers did in the Netherlands, we improved the efficiency of our greenhouses in different environmental matters such as water use and energy consumption. The use of screens in cold conditions, at night under 10° C, enables us to save energy by 15 to 20%. This also works for cooling (sun protection) in hot periods. Furthermore, our system recycles irrigation water so that we use 100 % of the water distributed. Rainfall water is also collected and used during drought periods. The use of rock wool substrate located 50 cm above the ground has a positive effect on plants by allowing better air circulation and reducing risks of diseases, but also improves the working conditions for our staff. For breeding high performing plants, it was necessary to create state-of-the-art conditions at the same level as high-technological Dutch growers. » |