Chapter 17

Question 1

A bushel of corn or soybean weighs 60 pounds (27 kilograms).

Answer 1

False

Question 2

Seeds at physiological maturity are dry enough for storage.

Answer 2

False

Question 3

Generally, when soybeans are harvested, the leaves have fallen off the plants.

Answer 3

False

Question 4

After combing, grain is clean of residue.

Answer 4

True

Question 5

Above-optimum moisture levels in seeds increase the rate of respiration.

Answer 5

True

Question 6

Grain storage always improves grain quality.

Answer 6

False

Question 7

The decision to dry grain crops artificially versus naturally can be dependent on energy prices.

Answer 7

True

Question 8

Harvest forages generally contain mature seed.

Answer 8

False

Question 9

Silage yields are usually up to 50 percent higher per acre than hay yields.

Answer 9

True

Question 10

High cell wall content is associated with increased intake and digestibility.

Answer 10

False

Question 11

Many modern beef and dairy operations rely more on stored grains than on grazing to feed livestock.

Answer 11

True

Question 12

The process of fermentation during silage production turns lactic acid into glucose.

Answer 12

False

Question 13

Cotton is mature when the bolls begin to close.

Answer 13

False

Question 14

Sugar content is the most important quality for sugar beets.

Answer 14

True

Question 15

Potato size is the main determinant in harvesting.

Answer 15

True

Question 16

Corn is typically harvested at grain moisture levels of:

A. 13 percent
B. 20 percent
C. 25 percent
D. 33 percent

Answer 16

C. 25 percent

Question 17

Soybean is typically harvested at grain moisture levels of:

A. 13 percent
B. 20 percent
C. 25 percent
D. 33 percent

Answer 17

A. 13 percent

Question 18

Swathing would most likely be part of harvesting for which crop?

A. corn
B. oats
c. soybean
D. sugar beet

Answer 18

B. oats

Question 19

Manual harvesting of grains was first replaced by which machine?

A. combine
B. reaper
C. binder
D. cradle

Answer 19

B. reaper

Question 20

The minimum temperature for storage fungi growth is:

A. 20 degrees F
B. 30 degrees F
C. 40 degrees F
D. 50 degrees F

Answer 20

C. 40 degrees F

Question 21

The most frequent cause of loss during grain storage is:

A. insects
B. fungi
C. rodents
D. bacteria

Answer 21

B. fungi

Question 22

The loss of forage nutrients during harvest frequently can be up to:

A. 5 percent
B. 25 percent
C. 40 percent
D. 60 percent

Answer 22

B. 25 percent

Question 23

Forage feeding value is described as”

A. forage quality
B. intake
C. nutritive value
D. antiquality factors

Answer 23

A. forage quality

Question 24

Thorns would be categorized as which of the following?

A. forage quality
B. intake
C. nutritive value
D. antiquality factors

Answer 24

D. antiquality factors

Question 25

As the crop matures from vegetative to flowering stages, which of the following occurs?

A. Forage yield decreases and forage quality decreases
B. Forage yield decreases and forage quality increases
C. Forage yield increases and forage quality increases
D. Forage yield increases and forage quality decreases

Answer 25

D. Forage yield increases and forage quality decreases

Question 26

The stocking rate is:

A. number of paddocks in a pasture
B. amount of hay in a bale
C. amount of silage in a silo
D. animals on pasture per acre

Answer 26

D. animals on pasture per acre

Question 27

The leading hay crop in the United States is:

A. smooth bromegrass
B. red clover
C. alfalfa
D. timothy

Answer 27

C. alfalfa

Question 28

Drying hay in the field takes about how many days?

A. 1 to 5
B. 6 to 10
C. 11 to 15
D. over 15

Answer 28

A. 1 to 5

Question 29

What is the most important determinant of quality in a tobacco crop?

A. leaf color
B. nicotine content
C. grain yield
D. moisture content

Answer 29

B. nicotine content