Types of Surface Irrigation Systems

Play an AI-generated podcast conversation about this lesson

Which type of irrigation system generally has the lowest pressure requirements?

Sprinkler irrigation

Microirrigation

All irrigation systems have similar pressure requirements

Surface irrigation (correct)

What is a common problem with surface irrigation that can lead to non-uniform water distribution?

Water must advance across the field quickly (correct)

Surface irrigation systems have high pressure requirements

Irrigators are generally willing to invest the time needed to irrigate efficiently

Water must advance across the field slowly

Which of the following is NOT a factor that contributes to the labor-intensive nature of surface irrigation?

Surface irrigation has lower pressure requirements than sprinkler irrigation (correct)

Surface irrigation requires frequent monitoring and adjustments

Water must advance across the field quickly

Irrigators are generally unwilling or unable to invest the time needed to irrigate efficiently

Which type of irrigation system is designed to irrigate an entire area with only one sprinkler that is moved periodically or automatically across the area?

Single-sprinkler systems Signup and view all the answers

Which of the following is a type of microirrigation system mentioned in the text?

Drip, trickle, and spray Signup and view all the answers

Which type of irrigation system has the highest pressure requirements?

Sprinkler irrigation Signup and view all the answers

What is the primary purpose of calculating the application efficiency (Ea) for an irrigation system?

To quantify the fraction of applied water that is stored in the root zone and available for crop use Signup and view all the answers

Which of the following irrigation system characteristics would contribute to a lower application efficiency (Ea)?

Increased evaporation losses during application Signup and view all the answers

How is the distribution uniformity (DU) calculated for an irrigation system?

DU = $\frac{d_{LQ}}{d_z}$ Signup and view all the answers

Which of the following is a key assumption when using the Christiansen uniformity coefficient (CU) to evaluate irrigation system performance?

Each observation represents the same area Signup and view all the answers

How does the Christiansen uniformity coefficient (CU) differ from the distribution uniformity (DU) in evaluating irrigation system performance?

CU considers the variability in individual observations, while DU only considers the average low-quarter depth Signup and view all the answers

Which of the following irrigation system characteristics would contribute to a higher Christiansen uniformity coefficient (CU)?

Smaller differences between individual water application depths and the mean depth Signup and view all the answers

Which of the following is NOT an advantage of micro-irrigation systems?

Water is applied uniformly across the entire field Signup and view all the answers

What is the primary factor contributing to water losses in irrigation systems?

All of the above Signup and view all the answers

Which type of irrigation system disperses water as a uniform sheet over the field?

Border irrigation Signup and view all the answers

What is the purpose of furrow irrigation?

To use gravity to provide just enough water for suitable plant growth Signup and view all the answers

Which statement about irrigation system efficiency is true?

Irrigation systems are never 100% efficient Signup and view all the answers

What is the goal of achieving management objectives in irrigation systems?

Both (a) and (b) Signup and view all the answers