'24 - '25 Plant Nutrients and Soil pH

Which of the following best describes the term, macronutrient?

• Nutrients that are chiefly responsible for vegetative growth and development.
• Nutrients that are needed in small quantities.
• Nutrients that are responsible for promoting stem elongation and stem strength.
• Nutrients that are needed in large quantities.

Which nutrient is responsible for root growth and development?

• Nitrogen (N)
• Phosphorus (P)
• Calcium (Ca)
• Potassium (K)

Which plant micronutrient is responsible for the formation of chlorophyll and the quick "greening up" effect on plants?

• Magnesium (Mg)
• Iron (Fe)
• Sulfur (S)
• Potassium (K)

Which plant macronutrient is responsible for developing a plant’s cold hardiness?

• Nitrogen (N)
• Manganese (Mn)
• Potassium (K)
• Sulfur (S)

Which plant nutrient increases chlorophyll concentration, leading to increased photosynthetic rates?

• Calcium (Ca)
• Magnesium (Mg)
• Nitrogen (N)
• Zinc (Zn)

How does soil pH impact plant growth and development?

• It determines the availability of plant nutrients.
• It impacts soil permeability.
• It determines the water - holding capacity of the soil.
• All of the above

pH is measured on a scale of 0 - 14. What is the ideal pH range for most plants?

• 5.0 - 5.8
• 6.0 - 7.0
• 6.4 - 7.8
• 7.2 - 8.5

Which plant nutrient is responsible for vegetative growth (stems / leaves)?

• Nitrogen (N)
• Phosphorus (P)
• Potassium (K)
• Sulfur (S)

If I need to lower the soil pH, what soil amendment do I need to apply?

• Dolomitic Limestone
• Hydroxide
• Pelletized Limestone
• Sulfuric Acid / Gypsum

If I need to raise the soil pH, what soil amendment do I need to apply?

• Limestone
• Gypsum
• Sulfuric Acid
• Granular Fertilizer