Chapter 13

Question 1

When biodiversity is considered that concept of richness refers to the distribution or relative abundance of the individuals of a species

Answer 1

False

Question 2

Increased biodiversity is generally desirable in an agroecosystem

Answer 2

True

Question 3

Continuous cropping is the planned sequence of different crops grown over years on the same land

Answer 3

False

Question 4

A 2 year rotation is generally adequate to control pests

Answer 4

False

Question 5

By cropping corn continuously, produces can expect 10 percent yield gains over corn in rotation

Answer 5

False

Question 6

The nitrogen from legumes can provide enough nutrition for a subsequent corn crop

Answer 6

True

Question 7

Corn and Soybean are crops that tend to be grown in monocultures

Answer 7

True

Question 8

Polyculture system are easier to manage than monoculture systems

Answer 8

False

Question 9

Hay mixtures using species such as alfalfa and grasses are an example of missed intercropping

Answer 9

True

Question 10

Living mulches have only been used to a limited extent due to a management challenges

Answer 10

True

Question 11

Multiple cropping is often practiced in areas with short growing seasons

Answer 11

False

Question 12

Green manures can be used as a substitute for synthetic fertilizers

Answer 12

True

Question 13

One way to diversify the landscape is through conservation planting

Answer 13

True

Question 14

Farmers who have CRP planting receive one-time payment for enrollment

Answer 14

False

Question 15

Studies have not shown a positive environmental impact as a result of the CRP Program

Answer 15

False

Question 16

A common example fro a 2-year rotation in the Midwest is 
       A. Alfalfa-Soybean
       B. Corn-Soybean 
       C. Corn-Corn 
       D. Alfalfa-Red Clover

Answer 16

B. Corn-Soybean

Question 17

A common companion crop to alfalfa is: 
       A. Sugar Beet
       B. Corn 
       C. Soybean 
       D. Oats

Answer 17

D. Oats

Question 18

Growing two or more crops together in the same place during a growing season is called: 
       A. Continuous Cropping 
       B. Monoculture 
       C. Polyculture 
       D. Crop Rotation

Answer 18

C. Polyculture

Question 19

The agroforestry system where trees are grown in rows with an annual, or perennial crop between is called: 
       A. Multiple Cropping 
       B. Contour Strip Cropping 
       C. Continuous Cropping 
       D. Alley Cropping

Answer 19

D. Alley Cropping

Question 20

The polyculture system where annual grain crops are planted into a suppressed perennial sod is: 
       A. Living Mulch 
       B. Strip Cropping 
       C. Contour Strip Cropping 
       D. Alley Cropping

Answer 20

A. Living Mulch

Question 21

An example of a double crop system that would be grown in a state such as Illinois is:
A. Wheat planted in fall with corn planted in spring
B. Barley planted in fall with wheat planted in spring
C. Wheat planted in the fall with barley planted in spring
D. Soybean planted in fall with cron planted in spring

Answer 21

A. Wheat planted in fall with cron planted in spring

Question 22

The type of multiple cropping system were a crop is planted (but not for harvesting) during or following the cash crop is: 
       A. Living Mulch 
       B. Cover Cropping 
       C. Alley Cropping 
       D. Conservation Planting

Answer 22

B. Cover Cropping

Question 23

A common crop grown in rotation with cotton is: 
       A. Peanut 
       B. Sugar Beet
       C. Rye 
       D. Potato

Answer 23

A. Peanut

Question 24

Cover crops are killed using which method? 
       A. Herbicides 
       B. Rolling 
       C. Mowing
       D. All answers are correct

Answer 24

D. All answers are correct

Question 25

``` Which of the following corps is known to have allopathic effects? A. Corn B. Barley C. Rye D. Wheat ```

Answer 25

C. Rye

Question 26

``` What percentage of the Corn Belt is planted with Corn and Soybeans? A. 50 Percent B. 75 Percent C. 85 Percent D. 95 Percent ```

Answer 26

D. 95 Percent

Question 27

``` Which is a type of agroforestry system that combines trees with pastures for livestock utilizations A. Silvopasture B. Alley Croping C. Continuous Cropping D. Cover Cropping ```

Answer 27

A. Silvopasture

Question 28

________ refers to all the species of living organisms in an agroecosystems

Answer 28

Biodiversity

Question 29

The two components of biodiversity are _______ and _______

Answer 29

Richness and Evennees

Question 30

________ cropping is when the same corp is grown for 2 or more years on the same land

Answer 30

Continuous

Question 31

The process that causes beneficial consequences on yield for unknown reasons is called ________

Answer 31

Rotation Effects

Question 32

The system that involves growing a single crop within a field during the growing season is a _______

Answer 32

Monoculture

Question 33

The insurance that polyculture can provide against total crop failure is called ______

Answer 33

Yield Stability

Question 34

The type of polyculture where two or more crops are grown randomly together are called ______

Answer 34

Mixed Intercropping

Question 35

The polyculture system where crops are grown in monoculture in adjacent rows is called ______

Answer 35

Strip Cropping

Question 36

The form of strip cropping commonly used for conserving soils on sloping credible land is _______

Answer 36

Contour Strip Cropping

Question 37

The sequential production of two or more different crops from the same piece of land is _____ cropping

Answer 37

Multiple

Question 38

Plants that contain compounds the inhibit the growth of other plants are _______

Answer 38

Allelopanthic

Question 39

Crops grown to be plowed under to improve soil quality are ______ crops

Answer 39

Green Manure

Question 40

________ are swaths of trees, shrubs or grasses planted along the banks of streams, rivers, wetlands and lakes

Answer 40

Riparian Buffers

Question 41

________ are rows of trees at the ends of the fields that slow wind velocity and protect crops and building from wind erosion and wind damage

Answer 41

Shelterbelts