DEVICE FOR INTERNAL SOIL IRRIGATION Russian patent published in 2011 - IPC A01G25/06 A01G27/00 

FIELD: agriculture.

SUBSTANCE: device comprises a tight tank, a supply pipe with a valve, a pipe with a valve to drain sludge and water remainder from the tank, a water-supply pipe. The water-drain pipe is connected to watering tubes. Watering tubes have water-outlet holes to supply water internally into soil. The tight tank comprises a vacuum and a bleed valves in the upper part and a level indicator on the side wall. Each watering tube is connected by means of a dosing element with an air and water impermeable rod. The lower end of the rod is sharpened. The cylindrical part of the rod is installed in a screen. The dosing element is arranged in the form of a ball with material density of not more than 0.12 t/m³. The ball is installed with the possibility of free displacement in the cylindrical cavity. The cylindrical cavity is pneumatically connected to a source of compressed gas. The source of compressed gas has a check valve, a valve and a pressure gauge.

EFFECT: structure will make it possible to increase crop capacity.

3 dwg