Which practice involves rotating fields from crop to crop each year to avoid exhausting the soil?

• A. Fallow Land
• B. Crop Rotation
• C. Monoculture
• D. Subsistence Farming

Answer: (B)

Rotating crops across a field each year keeps soil nutrients balanced and helps prevent buildup or exhaustion of any one nutrient. Different crops use nutrients in different ways, and some, like legumes, can even add nitrogen back into the soil, boosting fertility for the next crop. It also disrupts pests and diseases that specialize in a single crop, reducing the need for extra inputs and maintaining yields over time.

Leaving land fallow involves no crops for a period, which is about recovery rather than actively managing nutrients year by year. Growing the same crop across years (monoculture) drains the soil of the nutrients that particular crop needs. Subsistence farming describes farming to feed a family and doesn’t inherently address the nutrient management strategy of rotating crops.