Recent theories and scientific studies claim that the water demand of the blueberry depends on the area in which it is grown, as well as the age of the orchard and the density of plants in the soil.
One point to take into account, quoted by Del Campo magazine, states that between 6,000 and 10,000 m3/ha of water are needed. And what happens when blueberries are planted in areas where rainfall is a little more constant? Such is the case of the southern zone of Chile, where the demand could decrease by up to 4,000 m3/ha of water, a factor that will depend on the amount of water that falls.
If orchards in the northern and central areas of the country are reviewed, the average irrigation requirement is estimated at 6,000 m3/ha, this, according to scientific studies, because there is a higher radiative rate and, therefore, a higher evapotranspiration.
Drip irrigation has been described by several specialists as the ideal system for irrigating blueberries, as it adapts to the location of the roots and allows controlling the amount of water that enters the superficial and intermediate zones of the soil.
In this sense, the ideal is to install drippers in double lines in each row of the plantation, in order to achieve a homogeneous distribution of moisture in the soil profile, thus avoiding the excess concentration of this element on the surface.