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A reminder🌱
Greenhouse vs Tunnel farming.
A lot of times in greenhouses, the irrigation will come from the top and plants aren't planted directly in the soil on the ground, but in pots. In tunnels, you plant on the ground soil and your irrigation (drip) will run on the ground.
The main difference is the ventilation and heating. The high tunnels are solar heated by the Sun. They are usually covered in plastic. In a greenhouse you can add additional heat and ventilation via fans and just the raising and lowering of side walls including vents.
The advantages to growing inside a high tunnel is a longer growing season that gets a jump on most spring crops and extends the autumn growing season until the heart of the winter season. I grow spinach in the tunnels. Great crops to grow too are peppers and cucumbers.
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