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Quiz #2

Student's name ________________________________________

ORH 3222C - Turfgrass Culture 18 September 1995

(return to Turf Home or Old Exams)

Conversion problems. (16 pts.)

Set up the problem, based on what's given and what's asked for, multiply by the necessary identities,
and convert the units of measurement by cancelling. Do not do any arithmetic. You will not be graded
on the answer, only on the setup and conversion.

1. Students in a turfgrass class wish to apply the fertilizer urea (45-0-0) to 3 foot X 6 foot plots at a rate
of 1 pound nitrogen (N) per thousand square feet. The fertilizer will be weighed with a gram balance. How
many grams of urea are required per plot?











2. A turf manager wants to apply a 10-5-5 fertilizer at the rate of 1 pound of N per thousand square feet.
How many pounds of fertilizer should be applied to a 2000 square foot lawn?





3. A liquid fertilizer solution is to be applied at the rate of 100 gallons solution per acre. This is how
many milliliters solution per square meter?


















4. The fertilizer Milorganite (6-2-0) is to be applied at the rate of 1 pound N per thousand square feet.
How large a lawn (in square feet) can be treated with one bag (50 pounds).




Multiple choice. (8 pts.)

Please read these carefully. Only one response correctly answers the question, or completes the
statement. Circle the corresponding letter (a, b, c, d, or e).

5. The portion of the grass conducting tissue which brings water and minerals upward from the roots is the:
a. phloem
b. xylem
c. stomata
d. all of the above
e. none of the above

6. Compared with most broadleaved (primarily dicotyledonous) plants, grasses have:
a intercalary meristems
b reduced floral parts, i.e., no petals
c parallel veins
d all of the above
e none of the above

7. The lower, clasping part of the grass leaf is called the:
a blade
b sheath
c mycorrhizae
d tiller
e rhizome

8. The process by which carbohydrates are formed from carbon dioxide, sunlight, and water is:
a respiration
b photosynthesis
c vegetative propagation
d vernalization
e insipidization

Short answer. (4 pts.)

9. What are the four environmental factors that determine turfgrass evapotranspiration?


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