Why do farmers add fertilizer to soil?
Show answer & explanation
Answer: Replace nutrients that crops absorb
Replace nutrients that crops absorb ✓ — Correct! Crops absorb nitrogen, phosphorus, and potassium from soil. Without replacement, soil becomes depleted and yields drop. Fertilizers replenish these nutrients to maintain productivity.
Kill weeds and pests together — Wrong. Fertilizers provide nutrients to plants. Herbicides kill weeds, pesticides kill pests—these are different products with different purposes.
Help water reach plant roots — Wrong. Fertilizers don't help with watering. Irrigation systems handle water. Fertilizers provide important nutrients that plants need to grow.