The effect of hot water in weed control is based on a sudden surge of thermal energy, which damages plant tissue. Water is a great medium in transferring heat due to its great heat capacity of 4,18 kj/K. In comparison, the heat capacity of steam and air is 2,08 and 1,01 respectively.
DOES NOT DAMAGE TREES OR SHRUBS
The choice to use hot water to control weeds ensures considerably smaller lifecycle effects (LCA) than the choice to use
herbicides. The life cycle effects created by the method are mostly due to the use of diesel fuel to operate the equipment and the effects are reduced by the high operating efficiency of the equipment.
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