Phosphorus is a mineral naturally found in soil that is used for root growth and young seedlings. Which nutrient is this?

• A. Phosphorus
• B. Nitrogen
• C. Potassium
• D. Calcium

Answer: (A)

Phosphorus fits this description because it is essential for root development and early seedling growth. It supports energy transfer within the plant (through compounds like ATP) and helps in the formation of genetic material, which are all crucial during the establishment of a young root system. While nitrogen mainly drives leafy, vegetative growth and potassium supports overall vigor and enzyme activity, this particular statement highlights the root-focused role of phosphorus in seedlings, making it the best match. Calcium is important for cell walls and structural support, but it doesn’t specifically target root growth in young plants like phosphorus does.