CPP CPP Irrigation & Water Management 2

Question 1

Smart irrigation controllers adjust watering schedules based on which type of real-time data?

Accepted Answer

Weather and ET data

Answer

Smart controllers use weather data and ET calculations to automatically adjust irrigation schedules based on current plant water needs.

Question 2

What is the recommended practice when irrigating slopes to prevent runoff and erosion?

Accepted Answer

Use cycle-and-soak programming to match application rate to infiltration rate

Answer

Cycle-and-soak programming applies water in short intervals, allowing time for infiltration and preventing runoff on slopes.

Question 3

Which irrigation scheduling method uses soil moisture sensors to trigger irrigation only when soil moisture drops below a set threshold?

Accepted Answer

Soil moisture-based scheduling

Answer

Soil moisture-based scheduling uses sensors to monitor actual soil moisture and irrigates only when plants need water, avoiding over- or under-watering.

Question 4

What condition results when soil is irrigated beyond its field capacity and the excess water displaces air in pore spaces?

Accepted Answer

Waterlogging/anaerobic conditions

Answer

Waterlogging occurs when irrigation exceeds field capacity, saturating the soil and creating anaerobic conditions harmful to plant roots.

Question 5

Which irrigation practice is most effective for reducing salt accumulation in the root zone in arid US climates?

Accepted Answer

Leaching with excess water to push salts below the root zone

Answer

Leaching applies extra water to flush accumulated salts below the root zone, protecting plants in arid, saline conditions.

CPP - Certified Plant Professional Practice Test

CPP - Certified Plant Professional Practice Test

CPP CPP Irrigation & Water Management 2