Preview Questions Soil Scientist | Role Specific Skill

Question 1: What is the main advantage of using cover crops in erosion control?

Which action should you take?

Choose only one option

Reduces soil temperature

Reduces soil exposure to rainfall

Increases nitrogen volatilization

Decreases crop water use

Question 2: In a soil testing lab, which procedure would you use to determine the soil organic carbon content using dry combustion?

Which action should you take?

Choose only one option

Walkley-Black method

Dumas method

Soluble organic carbon method

Loss-on-ignition method

Question 3: What is the impact of excessive phosphorus application on soil and water ecosystems?

Which action should you take?

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Increases soil salinity

Leads to eutrophication

Reduces soil pH

Enhances microbial activity

Question 4: Which of the following is a common cause of nutrient imbalances in soils following excessive fertilization?

Which action should you take?

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Increased availability of micronutrients

Enhanced soil aggregation and improved root growth

Decreased microbial activity and reduced nutrient uptake

Reduced water retention and increased soil pH

Question 5: How does crop rotation help in preventing soil erosion?

Which action should you take?

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It helps in maintaining soil structure and reduces water runoff

It increases the need for soil amendments

It prevents the depletion of specific nutrients in the soil

It encourages deeper root growth, reducing soil erosion

Question 6: Which factor has the most significant impact on water erosion in agricultural soils?

Which action should you take?

Choose only one option

The soil texture and pH level

The use of chemical soil stabilizers

The soil organic matter content

The slope gradient and vegetation cover