Name: 
 

2001 National Agronomy Test



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Generally, which nutrient deficiency causes leaf margins to turn yellow?
a.
phosphorus
b.
iron
c.
potassium
d.
sulfur
 

 2. 


Farmer Bison wants to apply a total of 300 pounds of nitrogen per acre on his corn field. He has spread 10 tons per acre of dry manure with an average analysis of 17 pounds of nitrogen per ton. how many additional pounds of nitrogen must he apply?
a.
100
c.
283
b.
130
d.
None. He has applied enough already.
 

 3. 

Over 50% of the world’s food supply comes from three crop species. They are...
a.
corn, soybeans and wheat
c.
rice, potatoes and wheat
b.
corn, rice and wheat
d.
soybeans, corn and rice
 

 4. 

The weeds in your field are turning white. Which of the following herbicide types would most likely cause such injury?
a.
cell membrane disrupter
c.
pigment inhibitor
b.
growth regulator
d.
amino acid inhibitor
 

 5. 

Farmer Jones has a half section of dryland wheat in western Kansas. He has his wheat custom harvested and is quoted a cost of $10 per acre plus $.20 per bushel. Jones expects a yield of 50 bushels per acre. What are his harvest costs per acre?
a.
$10
b.
$20
c.
$50
d.
$320
 

 6. 

How many acres are there in a rectangular parcel of land that measures 800 feet long and 520 feet wide?
a.
9.6
b.
20
c.
4160
d.
1.8
 

 7. 

Looking at an Atrazine 4F label, what does the F stand for?
a.
fine mixed
c.
first added
b.
flowable
d.
a strength rating
 

 8. 

The vascular tissue in a crop plant that conducts water is the...
a.
phloem
c.
parenchyma
b.
xylem
d.
none of these are correct.
 

 9. 

Which of the following crops is an example of a monocot?
a.
cauliflower
b.
buckwheat
c.
tall fescue
d.
soybean
 

 10. 

The smallest particle in soil is?
a.
sand
c.
clay
b.
silt
d.
all of these are correct.
 

 11. 

Anhydrous ammonia contains approximately 82% nitrogen. You want to apply 190 pounds of nitrogen per acre on 235 acres of sorghum. If anhydrous is $300 per ton, how much will it cost you to apply the desired level of nitrogen?
a.
$6697
b.
$5492
c.
$8168
d.
$6714
 

 12. 

Which of the following nutrients is most mobile in the plant?
a.
nitrogen
b.
phosphorus
c.
calcium
d.
magnesium
 

 13. 

Your rice plant has yellow lower leaves. The newer leaves appear green. The intermediate leaves show yellowing from the tip down the midrib. Which nutrient deficiency possibly caused this damage?
a.
phosphorus
b.
boron
c.
nitrogen
d.
manganese
 

 14. 

When determining the yield of a grain crop, you need to know...
a.
the exact acreage harvested
c.
the moisture content of the grain
b.
the weight of grain harvested
d.
all of these are correct
 

 15. 

Which of the following groups of essential elements are classified as Secondary?
a.
N, K and Ca
c.
Mg, Ca and S
b.
P, N and K
d.
N, P and S
 

 16. 

High salts in soil can create damage due to...
a.
direct damage to roots
b.
damage to roots in the absence of water
c.
damage to roots in the presence of water
d.
salts do not damage crops
 

 17. 

Which of the following soil types would have the greatest potential to need annual lime applications?
a.
sand
c.
silt loam
b.
sandy clay loam
d.
muck
 

 18. 

What part of a plant cell contains chlorophyll?
a.
mitochondria
b.
nucleus
c.
chloroplast
d.
cell wall
 

 19. 

The plant process of turning water and nutrients into sugar is called_________.
a.
respiration
c.
denitrification
b.
photosynthesis
d.
leaching
 

 20. 

Which of the following herbicide modes of action would most likely turn veins in the leaves red?
a.
growth regulators
c.
cell membrane disrupters
b.
pigment inhibitors
d.
none of these are correct.
 

 21. 

Which of the following soil types would have the greatest problem with leaching?
a.
clay
c.
sand
b.
silt
d.
all about the same
 

 22. 

Which of the following insects is necessary for pollinating cucumbers, squash, watermelon and cantaloupe?
a.
Japanese beetle
c.
Grasshopper
b.
Lady beetle
d.
None of these are correct
 

 23. 

Which of the following diseases are bacteria most likely to cause?
a.
Verticilium, Rhizoctonia or Fusarium stalk rots
b.
Smuts
c.
Vegetable Soft Rots
d.
Tobacco Mosaic (TMV), Tomato Spotted Wilt (TSWV)
 

 24. 

You are applying Prowl 3.3EC at a rate of 2 pints per acre using 20 gallons of water per acre of application. You are traveling at 4.5 MPH. The field size is 1000 ft. X 1089 ft. The nozzles are 20 inches apart. How much herbicide and water will you need to treat the field?
a.
6.25 gallons of Prowl and 500 gallons of water
b.
50 gallons of Prowl and 500 gallons of water
c.
10 gallons of Prowl and 200 gallons of water
d.
500 gallons of Prowl and 20 gallons of water
 

 25. 

Which of the following formulations would be least damaging to spray equipment?
a.
WP
b.
DF
c.
EC
d.
DG
 

 26. 

Farmer Moose has a center pivot sprinkler irrigating 200 acres of pinto beans. To control weeds he will chemigate 4.2 ounces of herbicide per acre on his field. How many gallons of herbicide must he use to do this application?
a.
6.5
b.
4.2
c.
47
d.
840
 

 27. 

You are spraying a peanut field with pre-emergence herbicide. You are traveling at 9 MPH. The nozzles are 30 inches apart. You are using 8 gallons of spray per acre. What is your nozzle output?
a.
.5 GPM
b.
.36 GPM
c.
.25 GPM
d.
.20 GPM
 

 28. 

A bushel of corn at 15.5% moisture weighs 56 pounds. How much does a bushel of corn weigh at 17% moisture?
a.
51
b.
57.5
c.
61.4
d.
73
 

 29. 

Which nutrient is responsible for energy transformation?
a.
nitrogen
b.
manganese
c.
phosphorus
d.
magnesium
 

 30. 

When a crop seed is planted, what is the first structure to emerge from the seed?
a.
plumule
b.
radicle
c.
nodal roots
d.
cotyledons
 

 31. 

The endosperm is _______________ to an emerging seed.
a.
the starchy food source
c.
protection for the plumule
b.
the first root
d.
the embryo
 

 32. 

What is the singe most important concept in pesticide application?
a.
reading the label
c.
sprayer calibration
b.
personal protective equipment
d.
cleaning out the spray tank
 

 33. 

Which of the following statements appears on all pesticide labels?
a.
poison
c.
may be harmful if swallowed
b.
keep out of reach of children
d.
danger
 

 34. 

A pesticide that can only be handled and applied by a certified applicator is called a ______________ use pesticide.
a.
restricted
b.
general
c.
special
d.
licensed
 

 35. 

What is the main purpose for flooding rice during production?
a.
improved soil aeration
c.
increased nitrogen uptake
b.
weed control
d.
none of these are right
 

 36. 

Peanut plants grow......
a.
with pods forming from flowers above ground
b.
with pods forming at the end of pegs below ground
c.
with nodules forming on the roots that become nuts
d.
with pods in the axils of branches and petioles
 

 37. 

Soybeans are in the same family as ____________, which are legumes.
a.
wild mustard
b.
carrot
c.
alfalfa
d.
cotton
 

 38. 


Corn showing the collar of the thumb-shaped first leaf is at the ____________ growth stage.
a.
VT
b.
VE
c.
V1
d.
V3
 

 39. 

Nematodes are ____________.
a.
parasitic round worms
c.
bacteria
b.
fungi
d.
virus
 

 40. 

Which of the following insects is best described as a beetle with copper colored wings and a jade green head?
a.
armyworm
c.
Japanese beetle
b.
bean leaf beetle
d.
Tomato hornworm
 

 41. 

Farmer Brian wants to plant his 125 acre corn field with a population of 32,000 plants per acre. The seed he will purchase has 80,000 kernels per bag. The germination rate is 99%. How many bags of seed does he need to purchase?
a.
51 bags
b.
48 bags
c.
94 bags
d.
12 bags
 

 42. 

What is the primary reason farmers don’t save seed from their hybrid corn for planting in subsequent years?
a.
it may be illegal
b.
seed germination will be too low
c.
it will not perform as well as the original hybrid
d.
too much trouble with storage
 

 43. 

The first true leaves on a soybean plant are _______________.
a.
cotyledons
b.
unifoliate
c.
trifoliate
d.
parallel veined
 

 44. 

Which of the following is a micro-nutrient that would cause the leaves to appear somewhat striped when the pH is high and it becomes deficient?
a.
zinc
b.
boron
c.
calcium
d.
potassium
 

 45. 

How is a tobacco field planted?
a.
seeded broadcast
c.
planted using a no-till drill
b.
transplanted seedlings
d.
planted using a conventional planter
 

 46. 

You are looking over you smooth bromegrass pasture. You notice some black structures growing on a few of the seeds on some of the seedheads. Yo might have seen this on cereal grains such as rye, wheat, barley and rice. Which of the following diseases might this be?
a.
Ergot
b.
Stem Rot
c.
Root Rot
d.
Botrytis
 

 47. 

You have just harvested 120 tons of silage from 7.5 acres. The moisture of the silage is 65%. What is the dry matter yield per acre?
a.
16 tons per acre
c.
5.6 tons per acre
b.
10.4 tons per acre
d.
none of these are right
 

 48. 

Which of the following insects is considered a beneficial of predatory insect?
a.
Japanese beetle
c.
Lady beetle
b.
Mexican bean beetle
d.
Aphids
 

 49. 

You have a sand content of 31% and a silt content of 43%. How much clay is present in this soil sample?
a.
50%
b.
26%
c.
43%
d.
10%
 

 50. 

Which of the following soil types would have the most severe drainage problems?
a.
sandy loams
c.
clay loams
b.
clays
d.
silty clay loams
 



 
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