Crop rotation provides agronomic benefits. Which statement is correct?

• A. It reduces pests, maintains soil fertility, and improves yields over time
• B. It requires no planning
• C. It guarantees immediate harvest growth
• D. It is illegal in some countries

Answer: (A)

Crop rotation works by managing pests and soil nutrients over time, leading to healthier soil and more stable yields. By changing the type of crop grown in a field each season, pest and disease cycles are interrupted because the same host isn’t always present. Rotating crops with legumes adds nitrogen to the soil, improving fertility for subsequent crops, while alternating deep- and shallow-rooted plants helps use nutrients at different depths and reduces erosion. These combined effects tend to boost yields as the soil stays healthier across seasons. The other ideas miss key points: rotation requires careful planning to pair crops effectively, it doesn’t guarantee immediate harvest growth, and it’s not illegal in practice.