Preview Questions Soil Scientist | Role Specific Skill

Question 1: How does soil compaction directly affect soil health, particularly regarding plant growth?

Which action should you take?

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It improves water infiltration

It decreases oxygen availability to roots

It increases root penetration depth

It enhances soil microbial activity

Question 2: In conducting a nitrogen analysis on soil, what type of nitrogen is typically measured by the Kjeldahl method?

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Organic nitrogen

Total nitrogen

Nitrate-nitrogen

Ammonium-nitrogen

Question 3: Which of the following is the best practice for reducing soil erosion on steep slopes in mountainous areas?

Which action should you take?

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Applying organic fertilizers to increase plant growth

Implementing contour farming and building terraces

Increasing the frequency of irrigation to ensure adequate soil moisture

Using intensive tilling to break up compacted soil

Question 4: In fertilizer management, what does the term "fertilizer efficiency" refer to?

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The nutrient content of the fertilizer product

The speed at which fertilizer dissolves in water

The total amount of fertilizer applied per hectare

The ratio of nutrients absorbed by the plant to those applied to the soil

Question 5: Which fertilizer source is commonly used to provide both nitrogen and sulfur?

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Ammonium sulfate

Potassium nitrate

Superphosphate

Urea

Question 6: When using fertigation, which factor is most critical to consider to avoid nutrient imbalances?

Which action should you take?

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Water quality and distribution uniformity

Soil pH

Fertilizer solubility and compatibility with irrigation systems

Timing of fertilizer application