The problem of late frosts that occurs in many fruit plants is generated by that climatic condition that is called Thermal Inversion.

THERMAL INVERSION

Occurs by RADIATION and originates with the cooling of the earth’s surface caused by the emission of infrared radiation from the ground.

The phenomenon is favored by the absence of clouds and wind during the night. In general, it is associated with cold air stratification on the mountainsides and in flat valleys which are areas more exposed to late frosts.

The heat treatment technique with flame is suitable to solve the problem of frosts n orchards, vineyards, kiweti and berries (blueberries, raspberries, blackberries, currants, wild strawberries and gooseberries).

The principle by which we solve the problem of thermal inversion that leads to the presence of frost and lowering the temperature in the lower layers of the air in plants is that of heating the air by convention.

The rise in altitude of the colder air that is on the ground is induced by convection heating in an appropriate way and quantity the static air that is in the vicinity of the ground.

The rise in altitude of the colder air that is on the ground is induced by convection heating in an appropriate way and quantity the static air that is in the vicinity of the ground. The mass of air on the ground by heating expands, becoming less dense and then beginning to rise and drag with it other masses of air at lower temperatures that mix with the hotter ones.
The two air masses, a cold and a hot one then converge and rise.

Subsequently, at a certain altitude (more than 4.0 m), the ascending air continues to mix with its colder surroundings and lowers its temperature and slows down its upward movement until it stabilizes.

So the motion of the air that is created, ascending first and descending then, combining its hot component with the fr.