CGM Turf Management & Sports Field Maintenance

Question 1

What is the optimal soil pH range for most cool-season turfgrass species?

Accepted Answer

6.0–7.0

Answer

5.0–5.5

Answer

7.5–8.0

Answer

4.5–5.0

Question 2

Which warm-season turfgrass is most commonly used for sports fields in the southern United States?

Accepted Answer

Bermudagrass

Answer

Kentucky bluegrass

Answer

Tall fescue

Answer

Perennial ryegrass

Question 3

What is 'thatch' in turfgrass management?

Accepted Answer

A layer of dead and living organic matter between the soil and grass blades

Answer

A layer of decomposed organic matter below the soil surface

Answer

A type of fungal disease affecting turfgrass roots

Answer

A soil compaction layer that restricts water infiltration

Question 4

What is the primary purpose of core aerification in sports turf management?

Accepted Answer

To relieve soil compaction and improve air, water, and nutrient movement

Answer

To apply fertilizer more efficiently to the root zone

Answer

To remove thatch by mechanically cutting through it

Answer

To level uneven playing surfaces

Question 5

Which macronutrient is primarily responsible for turfgrass color and shoot growth?

Accepted Answer

Nitrogen (N)

Answer

Phosphorus (P)

Answer

Potassium (K)

Answer

Calcium (Ca)

Question 6

What is the typical mowing height range for bermudagrass maintained on a high-traffic sports field?

Accepted Answer

0.5–1.5 inches

Answer

3.0–4.0 inches

Answer

2.5–3.5 inches

Answer

4.0–5.0 inches

Question 7

What does 'topdressing' refer to in turf management?

Accepted Answer

Applying a thin layer of sand or soil mixture to the turf surface

Answer

Applying a pre-emergent herbicide to the turf surface

Answer

Applying granular fertilizer to the top of the grass canopy

Answer

Trimming the edges of the turf to maintain clean borders