How are you feeling for this?

Drinks already in the fridge for when it's over

What is the distingishes giant foxtail from the other foxtails?

hairs on margin of leaf shealth & leaf blade

Maximum plant available water is _______ minus ________.

field capacity, permanent wilting point

Denitrification most commonly occurs under which condition:

Low aeration (i.e. flooded soils)

If soybean planting is delayed until late June or early July seeding rate should

Increase by 10% and narrow rows

Which is NOT a disadvantage of grid or site specific soil sampling?

A management unit is smaller than the whole field

What statements are TRUE regarding the benefits of cover crops?

support active soil biology with expanded rhizosphere activity

Recommended soybean tissue sample, if possible, is:

Top fully-developed trifoliate leaf at first flower

Which of the following is correct:

Buffer pH is used to determine the amount of lime needed

Drinking water should have no fecal coliforms, and less than

5 counts per 100ml of total coliforms

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CCA Final Study

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Questions 100

Answers

1
What is the strategy to control perennial weeds?
Chemical control
Mechanical control
Biological control
Equipment sanitation
2
Which type of wetland is very stagnant and has no significant inflows or outflows of water?
Swamps
Bogs
Marshes
Fens
3
Which fertilizer reccomendation approached is used by OMAFRA?
Nutrient Sufficiency
Cation Saturation Ratio
Nutrient Build-Up and Maintenance
4
When tissue sampling corn for phosphorus or zinc deficiency the ideal sample unit is:
The entire above ground plant, regardless of growth stage
Whole plant at 4-6 leaves
The youngest fully developed leaf
mid-third of the ear leaf at silking
5
How are you feeling for this?
Drinks already in the fridge for when it's over
easy, breezy, beautiful
Heaven help me
6
Most systemic insecticids or fungicides are only downwardly mobile in plants with the movement of water in the xylem?
FALSE
TRUE
7
What is the distingishes giant foxtail from the other foxtails?
hairs on margin of leaf shealth & leaf blade
kinky hairs at base od leaf blade
no hairs present
hairs on margin of leaf blade
8
Rapid water movement downward in large pores after a rain is called:
Peferrential Flow
Undisturbed flow
Osmotic flow
Matric flow
9
Which fertilizer material does NOT contain nitrogen:
Liquid Phosphorus
Monoammonium Phosphate
Triple Superphosphate
Diammonium Phosphate
10
Soybean aphid is a vector of Soybean Mosaic Virus in soybean
FALSE
TRUE
11
Which of the following is not controlled by Bt corn?
Fall armyworm
Black cutworm
European Corn Borer
True armyworm
12
Maximum plant available water is _______ minus ________.
permanent wilting point, field capacity
field capacity, permanent wilting point
field capacity, gravitational water
gravitational water, field capacity
13
In Ontario, what time of the year are we most concerned about the potential for nitrate leaching?
anytime manure is applied
we need to be concerned all the time
during the growing season
fall to early spring
14
Denitrification most commonly occurs under which condition:
Within 24 hours of a manure application
Low aeration (i.e. flooded soils)
Low pH soils
Coarse Textured Soils
15
Which of the following is a biennial?
Wild carrot
Common Chickweed
Field horsetail
Common milkweed
16
What happens when corn is planted less than 2.5cm (1 in.) deep?
Seed emerges later
More tillers form
Nodal roots develop improperly
Seed does not emerge
17
Soil _____ has little impact on sulfate movement.
texture
structure
pH
organic matter
18
How many generations does swede midge have in a year?
4-5
3-4
2-3
1-2
19
If soybean planting is delayed until late June or early July seeding rate should
Increase by 15% and narrow rows
Increase by 10% and widen rows
Increase by 10% and narrow rows
Decrease by 10%
20
Soil pH recommended for corn, soybean and wheat is:
6.2-7.4
6.2-7.0
5.5-7.0
21
Which of the following has an economical chemical control option?
Soybean Aphid
Potato Leaf Hopper
European Corn Borer
22
Which is NOT a disadvantage of grid or site specific soil sampling?
Identification of management zones require additional information
More expensive
Spatial variability errors is samples are too far apart
A management unit is smaller than the whole field
23
What unit is base saturation presented in?
Percentage
cmol(+)/kg
meq/100g soil
24
Which mycotoxin is most toxic to swine?
Zearalenones
Vomitoxin
Ergot alkaloids
25
Both Gibberella and Diplodia stalk rots appear as small black spots, which one is easily scraped off?
Gibberella
Diplodia
26
Which fertilizer should not be placed with, or banded near, the seed
Triple Superphosphate
Diammonium Phosphate
Monoammonium Phosphate
Liquid Phosphorus
27
What standards are used to determine if a water body is impaired?
Weekly load
Annual load
Total load
Total Maximum daily load
28
What is the most important soil property that affects soil health?
AEC
CEC
Downward drainage
organic matter
29
What is the target crop of cabbage seedpod weevil?
Soybeans
Cabbage
Oats
Winter canola
30
Dolomitic limestone should be used when a magnesium soil test levels are less than _ppm.
120 ppm
70 ppm
90 ppm
100 ppm
31
What is NOT required on a pesticide label?
First Aid Instructions
Classifaction
Net Content
Specific PPE
32
The Walkley-Black Soil test for organic matter is not suitable on which soils
Calcareous
High pH
Organic
Low pH
33
What statements are TRUE regarding the benefits of cover crops?
support active soil biology with expanded rhizosphere activity
all of the above
create a microclimate area where the soil warms faster early in the season
possible habitat for beneficial wildlife to aid in the control of pests
34
It is easier to change the pH of a coarse textured soil than a fine textured soil
False
True
35
Soil samples CANNOT monitor what pest?
Soybean Cyst-Nematode
Egg Masses
Weed Seeds
Grubs
36
Which of the following species is a perennial?
Canada Fleabane
Wild Carrot
Field Bindweed
Common chickweed
37
Recommended soybean tissue sample, if possible, is:
Top fully-developed trifoliate leaf at first flower
The whole plant
The oldest pods
Third trifoliate from the bottom
38
a high pH increases herbicide persistence for
2,4-D
rimsulfuron
glyphosate
metribuzin
39
What is the critical weed free period for corn?
VE-VT
1-6 leaf over
V1-V3
V1-V6
40
The conversion of ammonium to nitrate by soil organisms:
Mineralization
Denitrification
Immobilization
Nitrification
41
What nutrient would an old starter band most likely throw your soil test results for?
Nitrogen
Potassium
Phosphorus
42
Which of the following is correct:
Buffer pH determines if a soil should be limed but not the amount needed
Soil pH is used to determine the amount of lime needed
Buffer pH is used to determine both if, and how much, lime is needed
Buffer pH is used to determine the amount of lime needed
43
The nitrogen-nitrate test has not been adequately adapted for the following situations:
All of the Above
Cold soils (samples taken mid-late April)
Soybeans in a no-till system
Legumes or manure plowed down in late summer or late fall
44
Which of the following is not one of the ways a pest develops resistance?
Enhanced metabolism of teh pesticide
Changes in emergence pattern
Reduced uptake of the pesticide
Target-site alterations
45
Which of the following has the greatest impact in infiltration?
Surface soil texture
Tile drains
Evapotranspiration
Runoff
46
Drinking water should have no fecal coliforms, and less than
10 counts per 100 ml of total coliforms
5 counts per 100ml of total coliforms
5 counts per 1000 ml of total coliforms
10 counts per 1000 ml of total coliforms
47
What situation increases the severity of brown stem rot in soybeans?
Moderate temperatures
High humidity
Minimum tillage
Dry conditions during pod fill
48
Which of the following is NOT a natural enemy of True Armyworm?
Wolf Spider
Bacillus Thuringiensis (BT)
Nuclear polyhedrosis virus
Minute pirate bug
49
Generally, the higher the CHU rating of an area, the better suited it is to reduced tillage?
TRUE
FALSE
50
Sediments in runoff decrease ________ in surface water
sediment load
light penetration
erosion
P load
51
Leaves are sometimes heartshaped when injured with what herbicide?
Flumioxazin
S-Metolachlor
Atrazine
Bentazon
52
In what order should forages be harvested for optimum quality
By planting date
Pure grass, alfalfa/grass mixtures, pure alfalfa
Pure alfalfa, grass/alfalfa mixtures, pure grass
Both have the same harvest requirements
53
Fall tillage is best suited for clay soils
TRUE
FALSE
54
Manures of high pH may temporarily increase the pH of the soil surface, resulting in:
Increased potential for herbicide leaching
Increased volatility of some hericides
Increased persistence of some herbicides
55
Which statement does not apply to the Ontario Phosphorus Index?
used to assess the potential risk of water contamination by P from fields
contains seven components
low P-ind values involve greater separation distances and less applied P
56
What is the safe storage moisture for haylage in an open-top tower?
55%-65%
60%-70%
40%-55%
25%-30%
57
A deficiency of what micronutrient is also known as "dry weather disease"?
Zinc
Boron
Calcium
Manganese
58
What is NOT a benefit of utilizing the annual water balance in regards to materials leaving the field?
identifies risks associated with intensity of precipitation
identify seasonal risk for preferential flow
identifies materials within that water carried out of the field
59
What type of soild would result in greater Mg mobility?
Low CEC, coarse texture
High CEC, fine-texture
High pH, clay soil
High pH, sandy soil
60
Growing degrees days is a linear relationship?
TRUE
FALSE
61
What % of plants with glandular hairs does highly resistant alflafa have?
>75%
15-30%
>50%
31-50%
62
Grain corn and silage corn have the same row spacing?
FALSE
TRUE
63
Which of the following fertilizers is the least toxic to seedlings
Diammonium phosphate
Sodium nitrate
Monoammonium phosphate
Urea
64
Which of the following is not a soybean pest that you would scout for in June?
Soybean Cyst Nematode
Soybean Rust
Soybean Aphid
Slugs
65
Which of the following is not a unique corn characteristic?
Low phytate
Popcorn
High oil
White
66
Which of the following is a benefit of wind strips?
No permanent loss of productive land
Creation of a microclimate where soil warms faster
creation of a wildlife corridor
Preservation of moisture in the soil
67
In a tile drainage system, what is the recommended minimum distance between the top of the drainpipe and soil surface?
72cm (28in)
45cm (18 in)
50cm (20in)
60cm (24 in)
68
Which of the following is an ADVANTAGE of enhancing/maintaining wildlife habitats?
decrease in flooding of fields, lanes and roadways
decreased risk of rabies transmission
improved air quality
decrease potential infestation by weed species
69
Which of the following is not a jointing species?
Kentucky Bluegrass
Bromegrass
Meadow Foxtail
TImothy
70
Which is the most shallow planted seed on average?
Wheat
Alfalfa
Canola
Barley
71
What is a disadvantage of elemental sulfur?
Needs to be applied the fall prior to a spring-planted crop
Not compatible in fertilizer blends
Caustic and requires special handling
Low solubility
72
Which of the following increases as a soil's clay content increases?
Pore Size
Particle Size
Bulk Density
Surface Area
73
Phosphorus deficiency in corn can be characterized by:
Pale-yellow white older leaves
Thick, white stripes on either side of the mid-rib
Excessive tillering
Reddish-purpling at leaf tips and margins
74
Leaves are heated shaped with toothed margins. What am I?
Lady's thumb
Velvetleaf
Giant Ragweed
Red Pigweed
75
Nitrate inhibitors delay the transformation of ammonium to nitrate which prevents:
Leaching
Ammonia volatilization
76
Which nutrient increases crop resistance to disease?
Potassium
Sulfur
Phosphorus
Nitrogen
77
Which form of phosphorus is most readily available to plants?
HPO4-2
PO4-3
H3PO4
H2PO4-
78
Which of the following is not an advantage of non-chemical pest control?
Are proactive rather than reactive
Discourages buildup of serious weed, insect or pest problems
Pests can not develp resistance to non-chemical controls
Reduced impact on non-target species
79
Growing point of grasses is at the base of the plant can be protected from herbicide sprays?
TRUE
FALSE
80
Highest risks of soil compaction usually occur with manure applications using:
solid spreading
injection with tractor pulled flexible hose
liquid tanker spreaders
spray irrigation
81
Nitrogen loss from the soil can occur by:
Ammonia volatilization
All of the Above
Crop Removal
Leaching of Nitrate
82
Which of the following is not a direct cause of winterkill?
Flooding
Frost/thaw cycles
Ice smothering
Planting date
83
Low phytate corn helps with phosphorus digestiblilty for
Humans
Hogs and chickens
All of the above
Cattle
84
Corn flea beetle is a vector of Stewarts wilt in corn
TRUE
FALSE
85
Which of the following is NOT a result of tile drainage
increased organic matter decompositio
deeper rooted crops
warmer soil temperatures in the spring
increased risk of moisture stress
86
As soil organic matter increases, CEC increases
False
True
87
Which of the following is not a management threshold for True Armyworm
Cereals - 4 larvae/square foot
Alfalfa - 50% infestation
Soys - 1 larvae on the top trifoliate before R6
Corn - 2 or more larvae/seedling or 10% feeding
88
Of the following, the greatest danger to the quality of water of groundwater comes from:
nitrate and pesticide leaching
ammonia volitalization
pesticide degradation
denitrification
89
Canada Fleabane and common chickweed are classified as both a summer and winter annual
TRUE
FALSE
90
When selecting corn silage, select hybirds with ______ heat units higher than those for grain
100-200
300
200-400
150-300
91
What is not a factor affecting seeding depth selection?
CHU
Seed size
Soil temp
Shoot elongation potential
92
47 on the zadok's scale is what Cereal growth stage?
Flag leaf sheath opening
Tip of head just visible
Boot fully swollen
Flag leaf ligule just visible
93
Which nutrient influences nitrogen fixation?
Calcium
Potassium
Magnesium
Phosphorus
94
At low pH (<5.5) phosphorus is fixed by which metal compounds found in soil:
Iron and Aluminum
Calcium and Potassium
Magnesium and Aluminum
Iron and Copper
95
What components are used to calculate the zinc and manganese indexes?
micronutrient level and phosphorus level
micronutrient level (ppm)and soil texture
micronutrient level and soil pH
micronutrient level and soil CEC
96
When scouting for this pest you should walk the field in an M shaped pattern?
Soybean Aphid
Potato Leafhopper
Two-spotted spider mite
Alfalfa Weevil
97
A soil test recommends 60 kg/ha of P2O5, what rate of 20-20-20 fert is needed?
600 kg/ha
300 kg/ha
60 kg/ha
120 kg/ha
98
Which is NOT an advantage of Non-Chemical Pest Control?
more sustainable
economical
resistence development
risk mitigation
99
The recommended soil test for organic matter is:
Walkley-Black
Loss on Ignition
C/N Analyzers
100
Which of the following is NOT one of the pools of carbon?
igneous rock
fossil fuels
soil organic matter
vegetation

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