Exam Review

Question 1

Purple on a leaf is an indicator of what deficiency?

Answer 1

Phosphorus

Question 2

Yellow on a leaf from the inside is an indicator of what deficiency?

Answer 2

Nitrogen

Question 3

Yellow on a leaf from the outside tips is an indicator of what deficiency?

Answer 3

Potassium

Question 4

The primary function claimed for bacterial non-protein inoculations used as silage additive is to

A.) remove water
B.) increase non-protein nitrogen
C.) increase fermentation rate and efficiency
D.) inoculants add more acid

Answer 4

C.) increase fermentation rate and efficiency

Question 5

Pasta is made from this kind of market class wheat.

Answer 5

Durum

Question 6

Rolls, tortillas, and Asian noodles are made from this market class wheat.

Answer 6

White

Question 7

Bread is made from this market class wheat.

Answer 7

Hard Red

Question 8

Pastries, cakes, and crackers are made from this market class wheat.

Answer 8

Soft Red

Question 9

Which group stage represent the grain filling period in corn?

A.) V 1-3
B.) R 1-2
C.) R 3-5
D.) R 5-6

Answer 9

D.) R 5-6

Question 10

Auto-toxicity in alfalfa production is the result of toxins from

A.) a virus (viral) disease
B.) a leaf hopper
C.) the alfalfa plant itself
D.) none of the above

Answer 10

C.) the alfalfa plant itself

Question 11

Which alfalfa hay harvest method has the highest field loss associated with harvesting?

A.) field cured hay in bale
B.) bag silage
C.) plastic wrap bale
D.) direct cut silage

Answer 11

A.) field cured hay in bale

Question 12

Alfatoxins in corn can affect livestock by causing

A.) loss of hair
B.) liver damage
C.) nerve damage
D.) loss of balance

Answer 12

B.) liver damage

Question 13

The order less, colorless, heavy poisonous gas that can develop as a layer on the surface during filling of upright soils and cause lung damage is

A.) sulfur dioxide
B.) carbon dioxide
C.) nitrogen dioxide
D.) methane

Answer 13

B.) carbon dioxide

Question 14

An indeterminate growth habit soybeans

A.) flowers the same time along all the plant
B.) continues to flower and grow vegetatively simultaneously
C.) has the same maturity stage of seed development on the entire plant
D.) set seed before it flowers

Answer 14

B.) continues to flower and grow vegetatively simultaneously

Question 15

Which statement represents the best quality cor silage

A.) silage cut should be 1 to 1 and a hald inches
B.) harvest silage at the milk stage of corn kernels so yield is highest
C.) corn grain content contributes at least 50% of the energy
D.) silage is a bunker will pack best at 40-45& moisture

Answer 15

B.) harvest silage at the milk stage of corn kernels so yield is highest

Question 16

What percentage of the flower that develop on soybean plants can be expected to abort or fail to form pods?

A.) 15-30
B.) 31-45
C.) 45-60
D.) 60-75

Answer 16

D.) 60-75

Question 17

Which factors has the greatest influence on flower initiation in soybean

A.) rainfall
B.) temperature
C.) day length
D.) soil fertility

Answer 17

B.) temperature

Question 18

Which fatty acid is considered the most desirable by the food industry for cooking foods?

A.) linoleic
B.) linolenic
C.) olegic
D.) omega

Answer 18

C.) olegic

Question 19

Which fatty acid is considered the most desirable in cooking oils and food products

A.) saturated
B.) trans
C.) unsaturated
D.) cholesterol

Answer 19

C.) unsaturated

Question 20

V-1 growth stage in soybean means the plant

A.) has the cotyledon emerged
B.) has the first unifoliated leaf
C.) had frist trifoliate leaf
D.) has first flower

Answer 20

C.) had frist trifoliate leaf

Question 21

Corn peaks at

A.) 50
B.) 75
C,) 86
D,) 96

Answer 21

A.) 50

Question 22

Which implement is a good example of a tillage implement used for primary tillage operations?

A.) rotary hoe
B.) chisel plow
C.) row crop cultivator
D.) field cultivator

Answer 22

B.) chisel plow

Question 23

Which crop is the best example of crop that leaves the most fragile residue after tillage operations?

A.) sorghum
B.) soybean
C.) corn
D.) flax

Answer 23

B.) soybean