CFB Turf & Surface Management 3

Question 1

When aerifying with hollow tines on a natural grass field, what happens to the extracted soil cores?

Accepted Answer

They are removed or broken up and dragged back in

Answer

Cores are typically broken up with a drag mat and worked back into the surface or removed entirely, depending on thatch management goals.

Question 2

What is the main advantage of using a sand-based root zone over a native soil field?

Accepted Answer

Improved drainage and reduced compaction

Answer

Sand-based root zones drain rapidly and resist compaction, allowing fields to be used sooner after rainfall.

Question 3

Which irrigation scheduling method uses real-time weather data to replace only the water lost to evapotranspiration?

Accepted Answer

ET-based scheduling

Answer

ET-based scheduling uses evapotranspiration data from weather stations to apply only the water the turf consumed, improving efficiency.

Question 4

A field is showing circular brown patches with a dark border after rainy weather. What is the most likely cause?

Accepted Answer

Brown patch (Rhizoctonia) disease

Answer

Brown patch caused by Rhizoctonia solani produces circular, tan-to-brown patches with a dark smoke ring border under warm, humid conditions.

Question 5

What is the purpose of overseeding a warm-season field with perennial ryegrass in the fall?

Accepted Answer

To provide winter color and playing surface while bermuda is dormant

Answer

Perennial ryegrass is overseeded into dormant bermuda to maintain a playable, green surface through winter months.

(CFB) Certified Field Builder Practice Test