High Tunnels provide an intermediate level of environmental protection and control compared to open field conditions and heated greenhouses. They create a micro-climate inside the tunnel that raises the temperature and protects crops from potentially damaging weather. Crops tend to be of higher quality and produce higher yields than field-grown crops. Overall, high tunnels provide an energy-efficient way to extend the growing season, reduce or avoid use of pesticides, and reduce runoff and leaching of nitrogen into the soil.


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