Greenhouse production during the summer can be a challenge. High solar radiation levels and resulting warmer air temperatures make it more difficult to maintain the proper growing conditions. As a result, some growers stop using their greenhouses during the summer. But others are using specific environmental control strategies to maintain optimum production conditions. Continuous production can reduce the fixed costs per unit of plants produced and provides for a more steady labor force. In order tomaintain optimum temperatures during the summer, warm greenhouse air needs to be replaced with cooler outside air. To accomplish this, greenhouses use either mechanical or natural ventilation.
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