ROOT INTRUSION PROTECTION OF SUBSURFACE DRIP IRRIGATION PIPE

摘要

A subsurface drip irrigation device having a tube having a first layer having a releasable herbicide compounded in the first layer are on an inside surface of the first layer, a second barrier layer adjacent the first layer, outlets extending through the tube in a spaced relationship along the tube, drippers positioned on an inside surface of the tube in a spaced relationship over an outlet where the barrier layer prevents outward movement of released herbicide through the first layer and directs the released herbicide into a flow path through the tube for exiting the drip irrigation device through an inlet into the dripper and out the outlet in the tube for preventing root intrusion into the device.

主权项

1. A subsurface drip irrigation device comprising:
a tube having a first layer having a releasable herbicide compounded in the first layer or on an inside surface of the first layer, and a second barrier layer adjacent the first layer; a plurality of outlets extending through the tube in a spaced relationship along a length of the tube; and a plurality of drippers positioned on an inside surface of the tube in a spaced relationship such that a dripper is positioned over an outlet, wherein the drippers have an inlet for receipt of water flowing through a flow path within the tube, and wherein the barrier layer prevents outward movement of released herbicide from the first layer directly into surrounding soil and directs the released herbicide into the flow path for exiting the drip irrigation device with the water through the drippers and the outlets in the tube to prevent root intrusion into the device.