Protection against damaging frost - mixing air near the surface

• Farmers often use wind machines to protect their crops from a frost....

• Q: What are they trying to accomplish???

• A: mixing warm air within the radiation down to the surface..

Other methods to mitigate frost damage to crops:

• cover plants with a blanket  ANSWER

• orchard heaters  ANSWER

• flooding the ground in orchard  ANSWER

• emit fine mist of water with sprinklers  ANSWER