IRRIGATION MAIN FOR SLOPING LANDS Russian patent published in 2003 - IPC

FIELD: agriculture, in particular, drop irrigation of perennial garden crop slope plantations and vineyards. SUBSTANCE: irrigation main has distributing pipeline, flexible irrigation pipelines connected to distributing pipelines through flow rate controls and terminating in bypass devices. Air exit orifices and gauged (for drop irrigation) water discharge orifices are formed along flexible irrigation pipelines at set pitch. Retainers are positioned in the vicinity of orifices of both types. Flexible irrigation pipelines are hung by means of retainers between two linear members arranged between vertical supports one above another in vertical plane for displacement in this plane, i.e., so that space between irrigation pipelines and distance from soil surface to pipelines may be regulated. Retainers positioned near air exit orifices are fixed to upper linear member and retainers positioned near water discharge orifices are fixed to lower linear member. So, flexible irrigation pipeline is located between linear members so as to form sine, whose lower points are arranged above distribution zone of rootage system of plants to be irrigated. Irrigation main allows sloped lands to be irrigated in low-pressure mode, with specific features of land plot under irrigated process being taken into account. EFFECT: simplified and reliable construction providing optimal sloping land irrigation mode, reduced power consumption, and reduced production costs due to absence of fine water purifying procedures. 2 dwg