Green Manuring

Description: Green Manuring Quiz
Number of Questions: 14
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Tags: green manuring soil erosion soil fertility
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What is the primary purpose of green manuring?

  1. To control weeds

  2. To improve soil fertility

  3. To prevent soil erosion

  4. To increase crop yields


Correct Option: B
Explanation:

Green manuring is the practice of growing and incorporating plant material into the soil to improve its fertility and physical properties.

Which of the following is NOT a benefit of green manuring?

  1. Increased soil organic matter

  2. Improved soil structure

  3. Reduced soil erosion

  4. Increased soil salinity


Correct Option: D
Explanation:

Green manuring can increase soil organic matter, improve soil structure, and reduce soil erosion, but it does not increase soil salinity.

What is the most common type of green manure crop?

  1. Legumes

  2. Grasses

  3. Crucifers

  4. Cereals


Correct Option: A
Explanation:

Legumes are the most common type of green manure crop because they can fix nitrogen from the atmosphere, which helps to improve soil fertility.

When should green manure crops be planted?

  1. In the spring

  2. In the summer

  3. In the fall

  4. In the winter


Correct Option: C
Explanation:

Green manure crops should be planted in the fall so that they can grow and accumulate biomass over the winter.

How should green manure crops be incorporated into the soil?

  1. By plowing them under

  2. By disking them in

  3. By chopping them up and leaving them on the surface

  4. By burning them


Correct Option: A
Explanation:

Green manure crops should be plowed under to incorporate them into the soil and release their nutrients.

How long does it take for green manure crops to decompose?

  1. A few weeks

  2. A few months

  3. A year or more

  4. Several years


Correct Option: B
Explanation:

Green manure crops typically decompose within a few months, depending on the type of crop and the soil conditions.

What is the effect of green manuring on soil erosion?

  1. It increases soil erosion

  2. It has no effect on soil erosion

  3. It reduces soil erosion

  4. It depends on the type of green manure crop


Correct Option: C
Explanation:

Green manuring can help to reduce soil erosion by increasing soil organic matter and improving soil structure.

What is the effect of green manuring on soil fertility?

  1. It decreases soil fertility

  2. It has no effect on soil fertility

  3. It increases soil fertility

  4. It depends on the type of green manure crop


Correct Option: C
Explanation:

Green manuring can help to increase soil fertility by adding organic matter, nitrogen, and other nutrients to the soil.

What is the effect of green manuring on crop yields?

  1. It decreases crop yields

  2. It has no effect on crop yields

  3. It increases crop yields

  4. It depends on the type of green manure crop


Correct Option: C
Explanation:

Green manuring can help to increase crop yields by improving soil fertility, reducing soil erosion, and suppressing weeds.

What are some of the challenges associated with green manuring?

  1. Green manure crops can compete with cash crops for water and nutrients

  2. Green manure crops can harbor pests and diseases

  3. Green manure crops can be difficult to manage

  4. All of the above


Correct Option: D
Explanation:

Green manure crops can compete with cash crops for water and nutrients, they can harbor pests and diseases, and they can be difficult to manage.

What are some of the best management practices for green manuring?

  1. Select a green manure crop that is compatible with your cash crop

  2. Plant the green manure crop at the right time

  3. Incorporate the green manure crop into the soil at the right time

  4. All of the above


Correct Option: D
Explanation:

Selecting a green manure crop that is compatible with your cash crop, planting the green manure crop at the right time, and incorporating the green manure crop into the soil at the right time are all important management practices for green manuring.

What are some of the most common green manure crops?

  1. Legumes

  2. Grasses

  3. Crucifers

  4. All of the above


Correct Option: D
Explanation:

Legumes, grasses, and crucifers are all common green manure crops.

What are some of the benefits of using green manure crops?

  1. They can help to improve soil fertility

  2. They can help to reduce soil erosion

  3. They can help to suppress weeds

  4. All of the above


Correct Option: D
Explanation:

Green manure crops can help to improve soil fertility, reduce soil erosion, and suppress weeds.

What are some of the challenges of using green manure crops?

  1. They can compete with cash crops for water and nutrients

  2. They can harbor pests and diseases

  3. They can be difficult to manage

  4. All of the above


Correct Option: D
Explanation:

Green manure crops can compete with cash crops for water and nutrients, they can harbor pests and diseases, and they can be difficult to manage.

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