Preview Questions Horticulturist | Role Specific Skill

Question 1: How does the Cation Exchange Capacity (CEC) affect soil fertility in horticultural systems?

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It increases the permeability of the soil to water and air

It influences the pH of the soil, affecting nutrient availability

It controls the release of nitrogen and phosphorus into the soil

It determines the soil's ability to hold and exchange essential nutrients

Question 2: When designing an irrigation system, which factor has the greatest influence on the choice of pipe material?

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Soil pH and temperature

Cost of materials and installation

Availability of labor for installation

Water pressure and flow rate

Question 3: What is the function of using misting systems in greenhouses?

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To increase CO2 levels in the air

To maintain high humidity levels and reduce water loss

To control plant height and promote bushier growth

To improve air circulation and reduce excess moisture

Question 4: Which of the following elements is most critical for stimulating the synthesis of chlorophyll in plants?

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Nitrogen

Magnesium

Phosphorus

Calcium

Question 5: How can the use of green manures enhance soil fertility in horticultural systems?

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By improving soil structure and increasing organic matter

By reducing soil erosion

By providing a temporary crop to harvest

By suppressing pest populations through allelopathy

Question 6: What is the primary cause of nutrient leaching in horticultural soils?

Which action should you take?

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Excessive irrigation or rainfall causing nutrients to wash away

High organic matter content in the soil

Balanced fertilization practices

Proper soil aeration enhancing nutrient uptake