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среда, 12 апреля 2017 г.

Temperature control in the cultivation of vegetables in the greenhouse and tunnels, the ventilation system of the plant.


temperature control
This is very important in the greenhouse, both vegetative development, as well as fruit. To determine the level of heat required, you first need to know it needs minimum temperatures each culture, the minimum temperature outside the greenhouse and conservatory area. Wind and settlement greenhouse affect heat loss.
And cooling is just as important. Evaporative cooling is an efficient and economical method to lower the temperature in the greenhouse. A proper ventilation is important not only for temperature control and to replace the amount of carbon dioxide and humidity control. A moisture content above 90% result in the occurrence of plant diseases. Most often used for greenhouses fans on the roof and the side plastic panels for ventilation and cooling. Fans should be installed as high as possible on the wall. Late spring or early summer may need to be shadowed emissions, if temperatures climb too much.
Heating, cooling and ventilation must be provided by automated systems to ensure perfect conditions and to facilitate your work.

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