Chapter 20

Question 1

The first use of soybeans in North America was as a grain crop.

Answer 1

False

Question 2

The largest producer of soybeans in the world is the United States

Answer 2

True

Question 3

The seed of cultivated soybeans is always yellow in color.

Answer 3

False

Question 4

Determinant soybean varieties are generally grown in the southern states.

Answer 4

False

Question 5

Soybeans do not require nitrogen fertilizer.

Answer 5

True

Question 6

Peanuts are best adapted to temperate regions.

Answer 6

False

Question 7

Alfalfa can have taproots as deep as 20 feet (6 meters).

Answer 7

True

Question 8

Seed production of alfalfa is primarily in California and other western states.

Answer 8

True

Question 9

Sweet clover was once commonly used as a nitrogen source.

Answer 9

True

Question 10

Vetches are commonly grown in tropical regions as green manure crops.

Answer 10

False

Question 11

Benefits of using native legumes agronomically include natural adaptation and increasing diversity.

Answer 11

True

Question 12

Most of the field pea production in the United States is used as dried peas for soup or for livestock feed.

Answer 12

True

Question 13

Crimson clover is adapted to hot and dry conditions.

Answer 13

False

Question 14

How many maturity groups do soybeans have?

A. 7
B. 11
C. 13
D. 15

Answer 14

C. 13

Question 15

Which of the following would be classified as _____ bean?

A. kidney bean
B. green bean
C. snow pea
D. soybean

Answer 15

A. kidney bean

Question 16

Field beans are native to:

A. Asia
B. Europe
C. Africa
D. the Americas

Answer 16

D. the Americas

Question 17

Field beans need to be cooked because

A. they contain toxic compounds.
B. the oligosaccharides contribute to gas formation
C. the protein will be unavailable
D. they are too difficult to chew

Answer 17

C. the protein will be unavailable

Question 18

Peanuts are native to:

A. Africa
B. Europe
C. North America
D. South America

Answer 18

D. South America

Question 19

Which of the following is NOT generally used as a grain legume?

A. chickpea
B. alfalfa
C. lupine
D. lentils

Answer 19

B. alfalfa

Question 20

Up to how many times can alfalfa be harvested in a season?

A. only once
B. twice
C. five times
D. seven times

Answer 20

C. five times

Question 21

Which of the following is sown on more acres in the United States?

A. white clover
B. red clover
C. sweet clover
D. sainfoin

Answer 21

B. red clover

Question 22

Which of the following has stolons?

A. white clover
B. red clover
C. sweet clover
D. alfalfa

Answer 22

A. white clover

Question 23

For which of the following is birdsfoot trefoil most suited?

A. hay
B. silage
C. pasture
D. grain

Answer 23

C. pasture

Question 24

Which of the following is best adapted to dry conditions?

A. white clover
B. red clover
C. alfalfa
D. sainfoin

Answer 24

D. sainfoin

Question 25

How much of the peanut crop produced in the United States is consumed as peanut butter?

A. 20 percent
B. 30 percent
C. 40 percent
D. 50 percent

Answer 25

D. 50 percent

Question 26

Which of the following is NOT a typical color type for field pea?

A. green
B. brown
C. yellow
D. cream

Answer 26

B. brown