CPP Irrigation & Water Management Flashcards

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

Answer: Weather and ET data

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

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

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

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

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

Answer: Soil moisture-based scheduling

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

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

Answer: Waterlogging/anaerobic conditions

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

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

Answer: Leaching with excess water to push salts below the root zone

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

What is the primary advantage of using recycled or reclaimed water for landscape irrigation in the US?

Answer: It conserves potable water supplies and reduces demand on freshwater sources

Reclaimed water use conserves potable water supplies by providing an alternative water source for non-potable landscape irrigation needs.