Watering Established Trees Test

Watering Established Trees Test
Please fill out your email address in the first box and your name, ISA cert. no. & specialty in the second box. Answer the questions below and when you are finished, press submit.

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Name :

Question: 1. A tree root takes in water:
at field capacity.
below field capacity.
at and below field capacity.
above field capacity.

Question: 2. Trees should be watered with:
their own irrigation system.
low volume sprinkler heads.
soaker hoses left running overnight.
All of the above.

Question: 3. Irrigation may never be needed:
during the establishment period.
to reduce the number of weeds competing for water.
if a layer of mulch is spread over the root system.
in sandy soil.

Question: 4. Which statement is not true?
Trees need water to manufacture food.
Water dissolves fertilizer salts that can then be absorbed by the roots.
Mature trees may have feeder roots extending fifty feet past the drip line.
Feeder roots are very large.

Question: 5. Recycled water from sewage treatment plants:
is often a better quality than potable water.
contains high levels of salts and nutrient ions that are good for tree growth.
is less expensive than potable water.
should never be used in landscapes.

Question: 6. Wetting agents are materials that make the water molecules:
more attractive to each other.
move more quickly through the soil pores.
have a strong attachment to the soil\'s pore space.
less needed by tree roots.

Question: 7. The amount and frequency of irrigation really depends on:
the amount of rain.
the temperature.
the soil type.
All of the above.

Question: 8. Irrigation frequency is influenced by:
wind conditions.
size of root systems.
soil depth and moisture.
All of the above.

Question: 9. Water is essential for:
dissolving fertilizer salts.
keeping a tree from overheating.
transporting nutrients.
All of the above.

Question: 10. Antitranspirants:
increase water loss through stomates.
cover stomates with a waxy film.
increase carbon dioxide entry into leaves.
decrease the establishment period.

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