Exam (elaborations)
AGRONOMY WRITTEN TEST QUESTIONS AND ANSWERS
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AGRONOMY WRITTEN TEST QUESTIONS AND ANSWERS
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Name: Score:230 Multiple choice questions
Term 1 of 230
Rice should be harvested when the grain moisture level is between ________ percent.
18 to 20
pathogens
fixing
broadleaf weeds
Term 2 of 230
An agronomist has identified evidence of insects devouring the leaves of a crop. What would
be the most effective means of control?
localized infection
a stomach insecticide
by microbes and sunlight
preemergent herbicides
Term 3 of 230
Which is true when collecting plant samples for disease identification in a testing laboratory?
Which is true when collecting plant samples for disease identification in a testing laboratory?
infectious diseaseinfectious disease
It is the only cereal crop that can be grown in standing water.
Submit fresh representative plant samples.
Forage grasses can be planted into existing vegetation.
,Term 4 of 230
What happens if the effective spray width per nozzle is doubled?
a measure of the amount of gross feed energy remaining after deducting for losses in
animal wastes and gases
North Dakota, Minnesota, South Dakota, Wisconsin, Texas
It decreases the gallons per acre applied by one-half.
The pressure must be increased four times
Term 5 of 230
What is believed to be one of the earliest cultivated grains and is grown for animal feed,
human consumption, or malting?
barley
systemic
larva
root knot nematode
Term 6 of 230
What is the first step in choosing an insecticide for pest control?
grain drill with press wheels
accumulative pesticides
properly identify the pest
noninfectious disease
,Term 7 of 230
Corn is ___________.
gynoecious
Preharvest loss
White flour
a living, disease-producing agent
Term 8 of 230
How is the incubation phase of plant disease progression defined?
to provide information about the active ingredient
Water can spread disease organisms and moisture aids growth of microbes.
Original investment for drying equipment and annual cost of ownership
a period during which the pathogen develops a form that can penetrate or infect the
new host plant
Term 9 of 230
What would you expect a scouting trip through a field to reveal?
the pest infestation status
at least once a week
noninfectious disease
soil and feeder roots
, Term 10 of 230
Economic injury level is _____.
The plant has a fungi infection of the xylem and phloem.
It can determine whether a control measure is needed
the point at which mature kernels fall from the wheat head
the point at which the cost of pest control equals the revenue loss caused by a
pest
Term 11 of 230
When should oats, barley, and rye be seeded?
The application rate is reduced by one-half.
as early as possible after the frost is out of the ground
Sorghum is more drought resistant than other grains.
It can determine whether a control measure is needed
Term 12 of 230
The Great Lakes provide fresh drinking water for approximately 30 million people. Pesticides
used for horticultural and agricultural purposes pollute the waters. How do most of the
pesticides reach the lakes?
damping off
surface runoff
abiotic disease
plant pathologist
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