ZONAL SUB-IRRIGATION SYSTEM Russian patent published in 2008 - IPC A01G25/06 

FIELD: agriculture.

SUBSTANCE: zonal sub-irrigation system comprising main channel or water duct, distribution pipeline, and irrigation pipeline with a plug at the end; zonal moisturisers made of perforated tubes, in the root area, water metering equipment, a fertiliser mixing and dispensing device. The distribution pipeline is equipped with graduated water flow taps. The irrigation pipeline is made of flexible tube pieces successively connecting the moisturisers, and is inclined to the planting row end. Moisturisers are made of open polyethylene tubes with a minimum length of 600 mm, with two branches at a level 200 mm lower than the upper end. Flexible tubes for feeding irrigation water from the water receiver are connected to the branches. The water receiver is installed freely above the planting horizontal and connected to the taps. The moisturisers are perforated at their lower ends, the perforation hole diameter being 2-3 mm.

EFFECT: even irrigation water flow rate and good access to irrigation pipelines for repairs.

3 cl, 5 dwg