Soil Fertility Management

Description: Soil Fertility Management Quiz
Number of Questions: 15
Created by:
Tags: soil fertility soil management agriculture
Attempted 0/15 Correct 0 Score 0

What is the primary role of organic matter in soil fertility management?

  1. It enhances soil structure and water retention capacity.

  2. It serves as a source of nutrients for plants.

  3. It promotes microbial activity and nutrient cycling.

  4. All of the above.


Correct Option: D
Explanation:

Organic matter plays a crucial role in soil fertility management by improving soil structure, enhancing water retention capacity, providing nutrients for plants, and supporting microbial activity, which contributes to nutrient cycling.

Which of the following is a commonly used method for improving soil fertility?

  1. Crop rotation

  2. Fertilization

  3. Liming

  4. All of the above


Correct Option: D
Explanation:

Crop rotation, fertilization, and liming are all widely used methods for improving soil fertility. Crop rotation helps maintain soil nutrient balance, fertilization provides essential nutrients for plant growth, and liming adjusts soil pH and improves nutrient availability.

What is the primary purpose of using cover crops in soil fertility management?

  1. To prevent soil erosion

  2. To suppress weed growth

  3. To improve soil structure and organic matter content

  4. All of the above


Correct Option: D
Explanation:

Cover crops serve multiple purposes in soil fertility management. They help prevent soil erosion, suppress weed growth, and improve soil structure and organic matter content, which ultimately enhances soil fertility.

Which nutrient is commonly deficient in acidic soils?

  1. Nitrogen

  2. Phosphorus

  3. Potassium

  4. Calcium


Correct Option: D
Explanation:

Acidic soils often have low levels of calcium, which can lead to nutrient imbalances and reduced plant growth. Liming is a common practice to raise soil pH and increase calcium availability.

What is the primary role of nitrogen in plant growth?

  1. It promotes root development.

  2. It enhances photosynthesis.

  3. It aids in protein synthesis.

  4. All of the above


Correct Option: D
Explanation:

Nitrogen plays a vital role in plant growth by promoting root development, enhancing photosynthesis, and aiding in protein synthesis. It is an essential nutrient for plant growth and productivity.

Which of the following is a common source of organic matter in soil fertility management?

  1. Crop residues

  2. Animal manure

  3. Compost

  4. All of the above


Correct Option: D
Explanation:

Crop residues, animal manure, and compost are all valuable sources of organic matter that can be incorporated into the soil to improve fertility. They provide nutrients, enhance soil structure, and support microbial activity.

What is the primary role of phosphorus in plant growth?

  1. It promotes root development.

  2. It enhances photosynthesis.

  3. It aids in energy transfer.

  4. All of the above


Correct Option: D
Explanation:

Phosphorus plays a crucial role in plant growth by promoting root development, enhancing photosynthesis, and aiding in energy transfer. It is an essential nutrient for plant growth and productivity.

Which of the following is a common practice for managing soil pH in soil fertility management?

  1. Liming

  2. Acidification

  3. Salinization

  4. Alkalization


Correct Option: A
Explanation:

Liming is a common practice used to manage soil pH in soil fertility management. It involves adding alkaline materials, such as agricultural lime, to the soil to raise the pH and improve nutrient availability.

What is the primary role of potassium in plant growth?

  1. It promotes water uptake.

  2. It enhances photosynthesis.

  3. It aids in protein synthesis.

  4. All of the above


Correct Option: D
Explanation:

Potassium plays a vital role in plant growth by promoting water uptake, enhancing photosynthesis, and aiding in protein synthesis. It is an essential nutrient for plant growth and productivity.

Which of the following is a common practice for managing soil salinity in soil fertility management?

  1. Leaching

  2. Irrigation

  3. Drainage

  4. All of the above


Correct Option: D
Explanation:

Managing soil salinity in soil fertility management involves a combination of practices, including leaching, irrigation, and drainage. Leaching helps remove excess salts from the soil, irrigation provides water to dilute salt concentrations, and drainage allows excess water and salts to drain away.

What is the primary role of sulfur in plant growth?

  1. It promotes root development.

  2. It enhances photosynthesis.

  3. It aids in protein synthesis.

  4. All of the above


Correct Option: D
Explanation:

Sulfur plays a vital role in plant growth by promoting root development, enhancing photosynthesis, and aiding in protein synthesis. It is an essential nutrient for plant growth and productivity.

Which of the following is a common practice for managing soil compaction in soil fertility management?

  1. Tillage

  2. Crop rotation

  3. Cover cropping

  4. All of the above


Correct Option: D
Explanation:

Managing soil compaction in soil fertility management involves a combination of practices, including tillage, crop rotation, and cover cropping. Tillage helps break up compacted soil layers, crop rotation promotes root diversity and reduces compaction, and cover cropping improves soil structure and reduces compaction.

What is the primary role of magnesium in plant growth?

  1. It promotes chlorophyll production.

  2. It enhances photosynthesis.

  3. It aids in energy transfer.

  4. All of the above


Correct Option: D
Explanation:

Magnesium plays a vital role in plant growth by promoting chlorophyll production, enhancing photosynthesis, and aiding in energy transfer. It is an essential nutrient for plant growth and productivity.

Which of the following is a common practice for managing soil erosion in soil fertility management?

  1. Contour farming

  2. Terracing

  3. Strip cropping

  4. All of the above


Correct Option: D
Explanation:

Managing soil erosion in soil fertility management involves a combination of practices, including contour farming, terracing, and strip cropping. Contour farming follows the natural contours of the land to reduce erosion, terracing creates level steps to slow down water flow and reduce erosion, and strip cropping alternates strips of different crops to help control erosion.

What is the primary role of calcium in plant growth?

  1. It promotes cell division.

  2. It enhances root development.

  3. It aids in nutrient uptake.

  4. All of the above


Correct Option: D
Explanation:

Calcium plays a vital role in plant growth by promoting cell division, enhancing root development, and aiding in nutrient uptake. It is an essential nutrient for plant growth and productivity.

- Hide questions