Chapter 14

Question 1

The incorporation of plant residues into soil increases their rate of decay

Answer 1

True

Question 2

Moldboard plowing leaves adequate residue cover top protect the soil

Answer 2

False

Question 3

Excessive plowing can lead to the loss of organic matter

Answer 3

True

Question 4

Primary tillage smoothes the seedbed for planting

Answer 4

False

Question 5

Conventional tillage requires less time and energy than conversation tillage

Answer 5

False

Question 6

No-till is commonly used on wet soils in northern regions

Answer 6

False

Question 7

A benefit to the ridge till system is earlier planting

Answer 7

True

Question 8

Fall plowing can facilitate earlier planting

Answer 8

True

Question 9

Good soil-to-seed contact is important for planting success

Answer 9

True

Question 10

Oxygen is no a factor in seed germination

Answer 10

False

Question 11

Light is a requirement for germination for most crop species

Answer 11

True

Question 12

The mechanism of dormancy can result in germination being staggered over years

Answer 12

True

Question 13

Seed of some cereal crops undergoes after-ripening before germination

Answer 13

True

Question 14

The initiation of metabolic processes int he seed occurs after germination

Answer 14

False

Question 15

At low seeding rates, plant populations are not utilizing resources optimally

Answer 15

True

Question 16

Typical row spacing of corn and soybean have increased since the 1950s

Answer 16

False

Question 17

On approximately how much planted land is conventional tillage used in the United States? 
        A. 1/10 
        B. 1/4
        C. 1/3
        D. 1/2

Answer 17

B. 1/4

Question 18

Which piece of equipment shears off sections of soil and flips them over? 
        A. Chisel Plow 
        B. Moldboard Plow 
        C. Cultivator 
        D. Disk Plow

Answer 18

B. Moldboard Plow

Question 19

How much residue does moldboard plowing typically leave? 
        A. 0 to 15 percent 
        B. 10 to 25 percent 
        C. 20 to 30 percent 
        D. greater than 30 percent

Answer 19

B. 10 to 25 percent

Question 20

Which of the following crops leaves the most residue after harvest? 
        A. Wheat
        B. Soybean 
        C. Corn 
        D. Barley

Answer 20

C. Corn

Question 21

Most farmers get their seed by:
A. Trading with neighbors
B. Buying with private seed companies
C. Purchasing from land-grant universities
D. Saving from the previous year

Answer 21

B. Buying with private seed companies

Question 22

Seed planted too deep will: 
        A. Exhaust their energy reserves 
        B. Dry out and die
        C. Emerge too early 
        D. Take up too much nitrogen

Answer 22

A. Exhaust their energy reserves

Question 23

The general rule for planting depth is to go no deeper than: 
        A. Twice the seed diameter 
        B. Five times the seed diameter 
        C. 10 times the seed diameter 
        D. 20 times the seed diameter

Answer 23

C. 10 times the seed diameter

Question 24

Which crop is more likely to be negatively affected by crusting of the soil surface? 
        A. Soybean 
        B. Corn 
        C. Wheat 
        D. Oats

Answer 24

A. Soybean

Question 25

``` In which soil should seed be planted the deepest? A. Clay B. Silt C. Loam D. Sand ```

Answer 25

D. Sand

Question 26

``` Dormant seeds usually have around what percentage of moisture? A. 5 percent B. 15 percent C. 30 percent D. 50 percent ```

Answer 26

B. 15 percent

Question 27

``` Hard seed is an example of what type of barrier to germination? A. Physical B. Chemical C. Age D. Physiological ```

Answer 27

A. Physical

Question 28

``` Hard seed must undergo what process before planting? A. Storing B. Chilling C. Heating D. Scarification ```

Answer 28

D. Scarification

Question 29

``` Broadcast seeding is most likely to be used with which of the following crops? A. Corn B. Soybean C. Alfalfa D. Field Bean ```

Answer 29

C. Alfalfa

Question 30

``` Which of the following would most likely be used to plant a restored prairie? A. Cultipacker Seeder B. Grain Drill C. No-Till Grassland Drill D. Row Crop Planter ```

Answer 30

C. No-Till Grassland Drill

Question 31

``` Which of the following would most likely be used to plant corn? A. Cultipacker Seeder B. Grain Drill C. No-Till Grassland Drill D. Row Crop Planter ```

Answer 31

D. Row Crop Planter

Question 32

``` Which of the following would be planted earliest in the year? A. Corn B. Small Grains C. Cotton D. Soybean ```

Answer 32

B. Small Grains

Question 33

_______ is the percentage of soil surface covered with remains of the last crop

Answer 33

Residue

Question 34

_______ tillage leaves a minimum of 30 percent residue

Answer 34

Conservation

Question 35

The primary tillage implement used in mulch tillage is the _______

Answer 35

Chisel Plow

Question 36

The system where planters with disk openers slice through crop residues and deposit the seed is called _______

Answer 36

No-Till

Question 37

The system that involves tilling a narrow 8- to 12-inch band in corp residue in the fall and planting the row crop the following spring is called _______

Answer 37

Ridge

Question 38

The process that ensures genetic integrity and quality of seed is called _______

Answer 38

Seed Certification

Question 39

_______ referes to seed viability and purity

Answer 39

Pure Live Seed (PLS)

Question 40

_______ is the failure of a seed to germinate despite having all the required factors for germination met

Answer 40

Dormancy

Question 41

The two equipment methods of seeding are ______ and _______

Answer 41

Broadcasting and Drilling

Question 42

_______ seeding is broadcast seeding of a corp when the ground is frozen

Answer 42

Frost

Question 43

Wheat

Answer 43

40-50 degrees F (4-10 degrees C)

Question 44

Soybean

Answer 44

50-60 degrees F (10-16 degrees C)

Question 45

Corn

Answer 45

50-60 degrees F (10-16 degrees C)

Question 46

Alfalfa

Answer 46

40-50 degrees F (4-10 degrees C)

Question 47

Rice

Answer 47

50-60 degrees F (10-16 degrees C)

Question 48

Flax

Answer 48

40-50 degrees F (4-10 degrees C)