Preview Questions Soil Scientist | Role Specific Skill

Question 1: In fertilizer application, what is the primary disadvantage of using ammonium-based fertilizers on soils with high levels of salinity?

Which action should you take?

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They are too expensive for large-scale applications

They decrease soil microbial activity

They may cause leaching of calcium and magnesium

They may increase soil salinity and reduce nutrient availability

Question 2: For soil fertility testing, which key nutrient is measured by the sodium bicarbonate extraction method?

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Phosphorus

Potassium

Calcium

Nitrogen

Question 3: What is the primary reason for soil salinity testing in agriculture?

Which action should you take?

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Evaluates microbial biomass

Determines organic carbon content

Prevents crop yield reduction due to salt stress

Measures nitrogen availability

Question 4: What is the most effective vegetative measure to prevent soil erosion on steep slopes?

Which action should you take?

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No-till farming

Grassed waterways

Mulching

Contour grass strips

Question 5: Which of the following water conservation techniques is most effective in promoting soil sustainability in dryland farming?

Which action should you take?

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Flooding the fields with excess water to replenish soil moisture

Using shallow tilling to increase soil water infiltration

Implementing rainwater harvesting and applying it through drip irrigation systems

Applying chemical soil conditioners to hold moisture in the soil

Question 6: What is the benefit of using biochar in soil management practices?

Which action should you take?

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It decreases the soil's capacity to retain nutrients

It contributes to soil acidification, reducing plant growth

It improves soil fertility, enhances water retention, and reduces soil erosion

It acts as a synthetic fertilizer to immediately boost crop production