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

Most turfgrass species perform best at a soil pH of 6.0–7.0, which optimizes nutrient availability and microbial activity.

Question 2

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

Accepted Answer

Bermudagrass

Answer

Bermudagrass is the most widely used warm-season turfgrass for sports fields in the South due to its durability, heat tolerance, and rapid recovery from wear.

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

Thatch is the layer of living and dead organic matter (stems, roots, rhizomes) that accumulates between the soil surface and the green grass blades.

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

Core aerification relieves soil compaction by removing soil cores, which improves the movement of air, water, and nutrients to the root zone.

Question 5

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

Accepted Answer

Nitrogen (N)

Answer

Nitrogen is the primary macronutrient responsible for shoot growth and the green color of turfgrass, as it is a key component of chlorophyll.

(CGM) Certified Grounds Manager Practice Test

(CGM) Certified Grounds Manager Practice Test

CGM Turf Management & Sports Field Maintenance