Low Volume Irrigation
You may answer each question as many times as necessary to obtain the correct answer. You must answer ALL questions.Your progress will be tracked automatically.
- Low volume irrigation is sometimes referred to as _____________________.
- Drip irrigation
- Trickle irrigation
- Overhead irrigation
- A & B
- Low volume systems require proper design, installation, maintenance and _______________for optimum water savings and plant performance.
- Plant selection
- Operation
- Depth
- Emitters
- Unlike overhead irrigation systems, the primary design goal of a low volume system is to apply water to ___________________, either directly to the plant root zone or in a limited area.
- A specific location
- A specific plant
- A uniform soil depth
- A uniform pressure
- Maintaining a low volume system requires careful attention because problems may be _______________ than a conventional overhead irrigation system.
- More costly to repair
- Less costly to repair
- More noticeable
- Less noticeable
- One of the most important benefits of low-volume irrigation is the potential to ______________.
- Reduce or eliminate water waste
- Reduce maintenance costs
- Improve plant health
- All of the above
- The top half of a plants root system absorbs up to _____ percent of the plant’s water and nutrient intake.
- 50
- 60
- 70
- 80
- Low volume systems assist in reducing significant _____________ soil wetting and drying
- Amounts of
- Water loses through
- Fluctuations
- Uniformity in
- Low volume irrigation systems enable landscape plants to tolerate higher levels of _________ in the irrigation water.
- pH
- Carbonates and Bicarbonates
- Fluoride
- Salinity
- Low volume irrigation limits the amount of water on the plant’s foliage, which in turn can greatly assist in avoiding _______________.
- Plant diseases
- Insect infestations
- Nutritional deficiencies
- Nutritional toxicities
- Successive wetting and drying cycles can cause _________________, which can limit flow rate and/or render a low volume irrigation system inoperable.
- Deposits of carbonates
- Deposits of bicarbonates
- Deposits of organic debris
- A & B

