The principal advantages are low labor requirements, low water and energy usage, a more uniform moisture level, and little effect on fruit rot. Two general types of drip irrigation are available. The half-inch lateral is replaced by a soaker that is either laid or buried along the row. Various types of these systems have been laid on the soil surface, buried in the soil, or suspended from the upper trellis wire. If the material is buried in the soil, the trickle line is buried four to eight inches deep to prevent damage from tillage equipment.
All systems require a good water filter, regardless of the water source, and a pressure regulator.
Pressures used vary from three to 20 psi. The length of time needed to apply the water varies with plant development and weather conditions. Continuous applications may not be desirable for brambles. Detailed specifications for both portable sprinkle and trickle-type irrigation systems, including water requirements, are available from agricultural engineering specialists, through county agricultural Extension agents, or equipment dealers.