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Nursery/Landscape CDE General Knowledge Weekly 12 #1 2026

Total questions: 12

Worksheet time: 15mins

Name
Class
Date
1.

A homeowner was ordering topsoil for his garden. He determined he needed 54 cubic feet. He was required to enter his order in cubic yards. How many cubic yards does he need? YOU KNOW HOW TO DO THIS. WE DID IT WITH MULCH CALCULATIONS!

a)

2

b)

4

c)

6

d)

18

2.

Sallie is preparing an application to use when she is screening and hiring new employees. Which information below can she NOT request on the application or in the interview?

a)

Education level

b)

Religious affiliation

c)

Telephone number

d)

Previous employers

3.

Which of these soils will dry quickest after irrigation or a rain?

a)

Clay

b)

Loam

c)

Sandy loam

d)

Clay loam

4.

Soil pH is measured on a scale that ranges from:

a)

5 to 8

b)

2 to 20

c)

0 to 20

d)

1 to 14

5.

The USDA plant hardiness zone map may be used to:

a)

Determine if a plant can withstand the lowest temperatures of the area

b)

Categorize plants into genus and species

c)

Determine if a plant can withstand the highest temperatures of the area.

d)

Determine if a plant is adaptable to rainfall in the area

6.

If an Extension Agent is unable to identify a plant disease problem, they might consult the state plant _____ to assist in disease identification and control.

a)

Pathologist

b)

Morphologist

c)

Ornithologist

d)

Ichthyologist

7.

Which of these is NOT a benefit of using mulch around landscape plants?

a)

add nutrients to the soil

b)

help control weeds

c)

help prevent bark damage when string trimming

d)

conserve soil moisture

8.

Propagating plants using seeds that have a hard seed coat often involves scratching the seed coat in a process known as:

a)

Grafting

b)

Stratification

c)

Gradation

d)

Scarification

9.

Correcting low soil pH can be achieved by applying:

a)

Lime

b)

Potassium

c)

Phosphorus

d)

Nitrogen

10.

Fertilizer is often applied through the irrigation system. This is often referred to as:

a)

Fertigation

b)

Chemigation

c)

Post-fertilization

d)

Fertilizer enhancement

11.

While the desirable soil pH for plants varies by species, a general range for most landscape plants is:

a)

1.0 to 7.0

b)

5.0 to 10

c)

5.5 to 6.5

d)

1.0 to 14

12.

This is a common disease caused by fungi and found throughout the United States. It is easily recognized by a white to gray powdery growth, usually on the upper leaf surface.

a)

Mealy fungi syndrome

b)

Powdery mildew

c)

Cedar-apple rust

d)

Powdery scale