Worksheets2015 Agronomy Test
Total questions: 50
Worksheet time: 25mins
Extreme heat during which stage of growth is most damaging to grain yields:
seedling emergence
pollination
hard dough to maturity
flag leaf
A major factor to consider in the selection of a variety of corn or soybean to plant on your particular farm is:
hybrid lines
fertility requirements
water requirements
days to maturity
A major factor to consider in the selection of a variety of alfalfa for northern Montana is:
days to maturity
water requirements
winter hardiness
fertility requirements
A raceme is considered a type of:
tiller
root structure
leaf collar
inflorescence
The standard test weight for a bushel of wheat is:
60
56
50
48
The apical stem on your canola crop has been slightly damaged by spray drift. It may regrow from:
internodes
axillary buds
radicle
cotyledons
Nutrients and food reserves are supplied a young pea plant during emergence by the:
radicle
cotyledons
unifoliates
trifoliates
Nitrogen fixation in peanuts occurs in specialized root structures called:
cotyledons
radicles
collars
nodules
If a wheat plant population density is low, the wheat plants will compensate by:
producing smaller heads
producing smaller seeds
tillering more
tillering less
Example of plants that are pulses are:
barley, rye
peas, lentils
canola, flax
oats, rice
The hilum of a bean seed is:
a thin shell covering the seed
where the radicle forms
where the first leaves form
where the seed is attached to the pod
An oat plant that is said to be in the "boot", is near:
heading out
maturity, harvest
soft dough stage of development
emerging from the soil
Durum is a type of wheat used in the production of:
flour for breads
flour for pastry
flour for pasta
animal feeds
An advantage of early planting of spring crops is:
avoid stress from high temperatures later
reduce excessive tillering
reduce lodging
develop a strong root system
An advantage of seeding spring crops later is:
less disease near harvest time
more protein in the grain at harvest
better control of annual weeds before planting
less insect pressure
Lodging in grains tend to happen because of excess:
heat
potassium
nitrogen
plant population
The most common crop used in the production of malt is:
oats
barley
corn
rye
Baling of alfalfa or grass hay (non-preservative) for storage should occur at:
10 – 12 % moisture
17 – 19 % moisture
20 – 23 % moisture
above 23 % moisture
The most damaging situation for alfalfa stand is to:
harvest at full bloom
harvest at 50% bloom
harvest at 10% bloom
harvest pre bloom
A key element in the formation of protein in hard red winter wheat is:
calcium
potassium
nitrogen
boron
Carrots raised for seed are examples of:
annuals
biennials
perennials
spring annuals
Which of the following plants has a trifoliolate leaf structure?
cucumbers
soybeans
peanut
sunflowers
The following plant has a pinnate leaf structure:
cucumber
peanut
soybean
sunflower
Many noxious weeds and perennial grasses reproduce by seed as well as underground structures called:
rhizomes
stolons
brace roots
haplocorms
Coleoptile length of a plant is useful to determine:
maturity
winter hardiness
planting depth
row spacing
In the production of hay, the single most important factor that determines quality is:
variety of grass or alfalfa
moisture content of plant when swathed
type of conditioner on swather
maturity of plant when swathed
Chlorosis can be defined as:
shrinking or narrowing of the xylem
pale, yellow or bleached leaves
failure of roots to absorb water
failure of flowers to produce pollen
A crop of barley can best take up which of the following forms of nitrogen?
nitrate
nitrite
atmospheric nitrogen
0-46-0-0
Plants that are deficient in phosphorous will often show symptoms of:
yellowing leaves, weak stems
brown, dry spots on the leaves
blue-green or purple leaves, stunted growth
pale green leaves, thickened stems
In alfalfa, which of the following insects induces chlorosis:
alfalfa weevil
lygus bug
grasshopper
leaf hopper
Yellowing of the lower leaf tips, continuing down the midrib of the leaf, and finally death of the lower leaves of grain plants indicate:
nitrogen deficiency
sulfur deficiency
potassium deficiency
excess soil moisture
A 50 pound bag of fertilizer that is labeled 3-6-3 contains:
3 pounds of nitrogen (N)
3 pounds of phosphorus (P2O5)
3 pounds of potassium (K2O)
1.5 pounds of phosphorus (P2O5)
Your soil test shows you need 60 pounds of N to produce the desired bushels of wheat per acre. If you are applying anhydrous ammonia, 82-0-0, how many pounds should you apply?
49
74
60
82
Which of the following is a beneficial insect?
aphid
grasshopper
honey bee
Colorado potato beetle
Gluten is a current topic in food discussions. Gluten found in grains is a form of:
protein
carbohydrate
fat
sugar
The goal of sustainable agriculture practices is to:
develop crop rotations for high yields
maintain and improve the land for generations
use only approved organic methods
not use synthetic fertilizers
Diatomaceous earth could be used on an organic farm for:
nitrogen fertilizer
weed control
prevention of dampening off of seedlings
insect control
Cover crops, on organic farms, are used for:
soil improvement
grazing for animals
insect control
disease control
One advantage of a no-till farming operation is improved:
disease resistance in the crops
soil tilth
insect control
herbicide and fertilizer utilization
Pheromones can be used to help:
trap insects
decrease certain bacterial diseases
improve herbicide mode of action
better utilize fertilizer in the soil
Organic matter in the soil is most important for good crop yields when:
rainfall is normal
rainfall is above normal
rainfall is below normal
organic matter has no impact on crop yields
To sell a product as organic the crop must have been grown on land that no synthetic chemical inputs were used for the previous ______ years.
3
5
7
10
Most soybeans planted today are tolerant of:
2, 4-D
Buctril
Paraquat
Glyphosate
If anhydrous ammonia costs $1,000 per ton and is 82% N, what is the cost of N per pound?
$0.79
$0.61
$1.17
$0.89
A soil test calls for 55 pounds of phosphorus per acre. How many pounds of (18-46-0) would you need to apply to meet the soil test requirement?
92
111
272
120
A farmers’ production costs for his crop totals 780peracre.Ifhehaspresoldhiscropat 4.90 per bushel, how many bushels does he need to average per acre to cover his production costs?
159
180
200
211
Depth of fertility soil testing should reflect:
reflect depth of tillage.
be at least 3 feet.
stay in the top 2 inches of the soil
according to the type and amount of fertilizer
A normal percent of oil extracted from soybeans is:
15
20
25
30
A plant continues to produce more leaves and stem after it has begun to flower. This growth habit is called:
monoecious
dioecious
indeterminate
determinate
A farmer wants to get an accurate estimate on his corn crop yield several weeks before harvest so he can pre sell most of his crop. Use the following information to determine his approximate yield. Plant population per acre = 24,800 plants; 1 ear of corn per plant; each ear = 16 rows with 56 kernels per row; 1600 kernels per pound; using the standard weight per bushel for corn, the yield would be:
248
308
344
356
