Description
Subsurface irrigation uses a network of polyethylene pipes located just under the ground's surface to apply disinfected effluent in the root zone of plants, preventing airborne drift and minimizing runoff. Note that effluent that has not been disinfected, such as from septic tanks and most wet composting toilets, must be disposed of below the soil (at least 300 millimeters deep). Subsurface irrigation requires less maintenance than surface irrigation, and there is also less chance of surface saturation and effluent runoff. By reducing the chance of human contact, it also significantly reduces the public health risks. it is a low-pressure, high efficiency irrigation system that uses buried drip tubes or drip tape to meet crop water needs.
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