Multiple Choice Identify the
choice that best completes the statement or answers the question.
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1.
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Prolonged applications of animal manure or biosolids can result in a build up of
which of these nutrients?
a. | Phosphorus | b. | Nitrogen | c. | Potassium | d. | Sulfur |
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2.
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The secondary nutrients are:
a. | Calcium, manganese, and sulfur | c. | Copper, magnesium, and
sodium | b. | Calcium, magnesium, and sulfur | d. | Sulfur, calcium,and
phosphorus |
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3.
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Mary Hill owns a wheat farm in Kansas. The soil tests show she needs to apply 45
lbs. of nitrogen per acre to meet her crop goals. She has decided to apply anhydrous ammonia which
contains approximately 82% nitrogen to her half section (320 acres) which will be in crop. If
anhydrous ammonia costs $.62 per pound, what will it cost her to fertilizer?
a. | $10,888 | c. | $34.02 | b. | $27.90 | d. | $8,928 |
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4.
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Your rice plant has yellow lower leaves. The newer leaves appear green. The
intermediate leaves show yellowing from the tip down the midvein. Which nutrient deficiency possibly
caused this damage?
a. | Phosphorus | b. | Sulfur | c. | Boron | d. | Nitrogen |
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5.
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Which of the following crops which consumes the most nitrogen whether as
commercial fertilizer or as biologically fixed nitrogen?
a. | Corn | b. | Potatoes | c. | Alfalfa | d. | Cotton |
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6.
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Given the atomic weight of potassium is 39.1 and oxygen is 16, what is the
percentage of potassium in 100 pounds of K2O?
a. | 83% | c. | 39.1% | b. | 42% | d. | none of these are
correct |
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7.
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A soil is classified as “acid” if it has a pH
a. | Below 6.5 | c. | That is neutral | b. | Higher than 7.5 | d. | Has no pH |
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8.
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Which of the following soil components has the largest surface area per cubic
foot of soil?
a. | Sand | b. | Silt | c. | Clay | d. | Metals |
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9.
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Which of the following soil types would have the highest Cation Exchange
Capacity (CEC)?
a. | Sand | c. | Silt loam | b. | Sandy clay loam | d. | Muck |
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10.
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Which of the following is NOT a micronutrient needed for plant growth?
a. | Boron | b. | Iodine | c. | Zinc | d. | Manganese |
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11.
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The endosperm is ____________ to an emerging seed?
a. | The starchy food source | c. | Protection for the
plumule | b. | The first root | d. | The embryo |
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12.
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Hybrid corn variety 3257 is ready for picking in 110 days in Fairfield, Michigan
but it takes 120 days for the same corn to be ready in Fairfield, Washington. The best
explanation for this difference in:
a. | Rainfall | c. | Sub-soil structure | b. | Degree days | d. | Soil texture |
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13.
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In corn production, VE refers to:
a. | Emergence | c. | Silking | b. | 3rd leaf collar | d. | Tassel
emergence |
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14.
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The first true leaves on a soybean plant are __________.
a. | Cotyledons | c. | Trifoliate | b. | Unifoliate | d. | Parallel veined |
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15.
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Which of the following species has a spiked inflorescence?
a. | Tomato | c. | Timothy | b. | Kentucky bluegrass | d. | Oats |
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16.
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Which of the following weed species is a biennial?
a. | Pigweed | c. | Wild carrot | b. | Canada thistle | d. | Johnsongrass |
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17.
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In small grain production (rice, wheat, rye, barley, or oats), which of the
following leaves is most important to grain fill?
a. | The flag leaf | c. | All leaves are equally important | b. | Leaves produced
while tillering | d. | None of
these are correct |
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18.
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What role does phosphorus play in a plant?
a. | It is a primary component of cellulose | b. | It is used for energy storage and
transfer | c. | It is part of the lignin in a plant | d. | It is a primary compound in
sugars |
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19.
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On a grass plant which part is a clasp-like structure located where the blade
attaches to the stem?
a. | Ligule | c. | Auricle | b. | Apical meristem | d. | Root |
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20.
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Which of the following structures would be considered an underground
stem?
a. | Seed | b. | Auricle | c. | Rhizome | d. | Nodule |
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21.
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Certain genetic lines of corn, soybeans, and cotton have been genetically
modified to be tolerant to what commonly used herbicide:
a. | 2,4-D | b. | Atrazine | c. | Roundup | d. | Poast |
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22.
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The broadleaf weeds in your corn field are showing a white coloration. Which of
the following herbicide types would most likely cause such injury?
a. | Growth regulator | c. | Amino acid inhibitor | b. | Cell membrane disrupter | d. | Pigment
inhibitor |
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23.
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The movement of pesticides downward through the soil to the water table is
called ________.
a. | Runoff | c. | Leaching | b. | Drift | d. | Back-siphoning |
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24.
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One of the best ways to avoid herbicide resistance from occurring is to:
a. | Continue to use the same herbicide, just at higher rates. | b. | Let weeds that have
escaped go to seed. | c. | Use herbicides with different modes of action
to control weeds. | d. | Rotate to a different crop but use the same
herbicide. |
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25.
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Looking at the Accent 4DF label what does the DF stand for?
a. | Dispersible flowable | c. | Dissolved formulation | b. | Dry
flowable | d. | Dissolved
fluoride |
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26.
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The reason for adding liquid fertilizer solution to pesticide applications is
to:
a. | Optimize the pesticide’s activity | b. | Aid in the
penetration and absorption of the pesticide | c. | Aid in the translocation of the pesticide to
the active side | d. | All of these are correct |
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27.
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Which of the following statements is found on all pesticide labels?
a. | Keep out of reach of children. | b. | Danger - Fatal if
swallowed. | c. | Harmful to fish and wildlife. | d. | Caution - May cause skin
irritation. |
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28.
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Soil herbicides that exhibit differential selectivity is generally based on
what?
a. | Placement | b. | Differential metabolism | c. | Physiological
morphogensis | d. | Placement AND Differential metabolism |
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29.
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Paraquat is a contact herbicide extensively used in many cropping systems. This
material is not effective against perennial weeds such as ___________.
a. | Eastern black nightshade | c. | Canada thistle | b. | Common
lambsquarters | d. | Redroot
pigweed |
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30.
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You are doing a banding application of a pesticide. Your band width is 12
inches. Your nozzles are 35 inches apart. Your speed is 4.5 MPH. You are using 12 gallons per acre.
What is your nozzle output?
a. | 0.11 GPM | b. | 0.38 GPM | c. | 0.32 GPM | d. | 0.25
GPM |
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31.
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Which is the following weeds contains alkaloids that can cause hallucinations or
death if ingested?
a. | Wild carrot | c. | Jimsonweed | b. | Common lambsquarters | d. | Dandelion |
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32.
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Barley yellow dwarf is caused by _________.
a. | Virus | b. | Bacteria | c. | Fungi | d. | Pollution |
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33.
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Which of the following insects is necessary for pollinating vegetable crops such
as cucumber, watermelon, and cantaloupe?
a. | Grasshopper | c. | Honeybee | b. | Gypsy moth | d. | Corn earworm |
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34.
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Your oat crop has a black growth where the seed should be. This blows in the
wind. This disease is probably caused by __________.
a. | Bacteria | c. | Virus | b. | Fungi | d. | Herbicide |
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35.
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Johnsongrass is a primary noxious weed in most states due to its spread by both
seed and rhizome. Which of theses methods would best control this weed?
a. | Plowing | c. | Spring applied fungicides | b. | Cultivation | d. | Fall applied herbicides |
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36.
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Wheat flour that came from storage has small black insects in it. Which of the
following insects is most likely to be the problem?
a. | Colorado potato beetle | c. | Alfalfa weevil | b. | Saw-toothed grain beetle | d. | Flea beetle |
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37.
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This disease spreads by water splash and causes problems with water uptake in
the plant as it grows in the vascular tissue. The cause is most likely a ________.
a. | Bacteria | c. | Virus | b. | Fungi | d. | Fungicide
damage |
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38.
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Which of the following weeds would most likely be controlled by a lipid
synthesis inhibitor herbicide such as Poast?
a. | Simple perennial broadleaves | c. | Annual
broadleaves | b. | Annual grasses | d. | Creeping perennial broadleaves |
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39.
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Of the beetles listed which is the smallest?
a. | Lady beetle | c. | Flea beetle | b. | Colorado potato beetle | d. | Japanese beetle |
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40.
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Mushrooms are __________.
a. | Fungi | b. | Bacteria | c. | Virus | d. | Mycoplasm |
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41.
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Environmental concerns require farmers to recognize the danger of excessive
nitrogen (N) application rates. What form of applied commercial N or form of N resulting from soil
organisms altering applied N and manure is most subject to leaching loss from soil?
a. | Organic N forms (proteins, amino acids, amines, etc) | b. | Urea forms of
N | c. | Nitrate nitrogen | d. | Ammonium
nitrogen |
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42.
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You are planting a field of red kidney beans 1000’ X 697’. The seed
you purchase is 99% pure and has a germination rate of 92%. You want to plant 60 pounds of viable
seed (PLS) per acre. How many actual bags of seed should you buy? The seed comes in 50 pound
bags.
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43.
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You are spraying a field at 7 MPH. Your nozzle output is 0.32 GPM. The nozzles
are 32 inches apart. How much spray mixture do you need per acre?
a. | 5.6 gallons/acre | c. | 12.7 gallons/acre | b. | 8.5 gallons/acre | d. | 2.0
gallons/acre |
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44.
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You are estimating the plant population for your cotton field. In 17 feet 5
inches you counted 18 plants. What is your average plant population per acre?
a. | 17,500 | b. | 18,000 | c. | 36,000 | d. | 180,000 |
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45.
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You are deciding on nitrogen fertilizer for your 128 acre dent corn field. The
recommendation for the crop is for 225 pounds of nitrogen per acre. Which of the following options is
most economical? You have all needed equipment for all applications.
a. | Anhydrous ammonia (82-0-0) at $728 per ton. | b. | Urea (46-0-0) at
$475 per ton. | c. | Ammonium nitrate (33-0-0) at $1340 per ton. | d. | 28% liquid nitrogen
(2.99 pounds N per gallon) at $3.58 per gallon. |
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46.
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The PSNT (pre-sidedress nitrogen test) is used when corn is what stage of growth
to estimate the soil’s potential for mineralizing N from organic sources in the soil?
a. | When the corn is rapidly growing and at least 18 to 24 inches
tall. | b. | When the corn has just emerged from the soil and is at the 1 to 2 leaf
stage. | c. | When the corn is about 12 to 14 inches tall and is about to enter its rapid growth
phase. | d. | When the corn is beginning to tassel. |
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47.
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Mass flow uptake of nutrients is increased by all but which of the following
factors?
a. | High intensity sunlight | b. | High available soil water
levels | c. | High winds combined with low relative humidity | d. | Cloudy, cool
weather |
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48.
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The water pH of a soil is an accurate measure of what?
a. | The amount of soluble salts in a soil | b. | The lime requirement of a
soil | c. | The concentration of hydrogen ions in the soil solution | d. | The amount of free
lime in the soil |
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49.
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The Certified Organic operations, which of the following fertilizers can
be used on acid soils and still provide P for crop uptake?
a. | Rock phosphate | b. | Raw manure | c. | Ammonium
polyphosphates (DAP and MAP) | d. | Triple
superphosphates |
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50.
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By cutting alfalfa too late in the fall, the farmer will:
a. | Increase his yield for the next year | b. | Destroy alfalfa weevil wintering
over | c. | Increase the carbohydrate reserves stored in the crown | d. | Weaken the stand
next spring or reduce yields next spring |
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