Based on the studies of blueberry frost, we have the following data according to the phases of bud development (based on the studies of the University of Michigan and Florida MSU-1, FU, CANR.MSU

To protect blueberries from frost, it is necessary to carry out irrigation in the garden with the following intensity:

The condition for the start of irrigation is considered to be when the wet bud temperature Tw = 0⁰ C -0.5⁰ C. It is determined by special sensors, dry bud temperature, ambient humidity and iteration. An example of this is the Rika sensor R330. For a wet bud temperature Tw = 0⁰ C -0.5⁰ C, the ambient temperature under different humidity conditions is within 1⁰ C -3⁰ C.

The irrigation is stopped when Tw = 1.5⁰ C is reached.

The sensor should be installed in an area away from the building At a height of 1.5 -2 m. At the same time, we must avoid sprinkling. This is possible with the SDI 12 or Agrobee – L loggers, which were described here. The sensor readings are transmitted via radio connection to Agronik, which automatically activates the sprinkling system at Tw = 0⁰ C -0.5⁰ C and turns it off at Tw = 1.5⁰ C. Human duty and intervention are not required.

Agronik’s frost protection system is integrated with the VEGGA platform, which allows remote, automatic control, data visualization, and notifications without additional configuration.

See the technical implementation of sprinkling and its estimated budget on the ProAgro pages.