How much does a subsurface drip irrigation (SDI) investment cost?
An SDI system will cost roughly between $2000-$2500 ($1800 -3000) per acre depending on the water source, field shape, and size.
How deep is the subsurface drip irrigation (SDI) tape buried?
Subsurface irrigation tape is buried between 10" - 16" dependent upon soil type, tillage practices, and germination needs.
How much water/water flow is needed for SDI?
SDI requires a minimum of 2 gallons of water per minute/acre. However, 5 gallons of water per minute/acre is ideal.
Can SDI be installed on slopes, hills, or terraced ground?
Yes. We use a ground following plow, so it adjusts to the uneven terrain. Pressure compensating emitters are also used to ensure even flow of water throughout hilly or undulated terrain. They emit the same amount of water with 6psi as 26psi.
What is the life expectancy of subsurface drip (SDI)?
Subsurface drip irrigation (SDI) was installed at Kansas State University's Research Farm in Colby, KS 25 years ago. This SDI system is still in operation today. Nutradrip does maintenance on a drip field near York NE that is 38 years old and still functioning properly. Proper maintenance and good water quality have helped ensure the longevity of this system.
What about rodents?
Ground squirrels and pocket gophers can cause damage to an SDI system unless they are controlled. Bait stations, trapping, and attracting natural predators, such as owls are ways to decrease rodent pressure. Typically, mice are only a problem if the soil is loose from installation. This is why wheel packing is so important after the tape is plowed in.