Which statement is true about cultivation as a weed-control method?

• A. It can damage soil structure, is costly, and encourages weeds
• B. It reduces soil erosion
• C. It improves soil structure
• D. It eliminates all weeds

Answer: (A)

Cultivation uses mechanical disturbance to control weeds, but that disturbance can harm the soil and come with downsides. Pushing and turning soil disrupts soil structure, breaking apart aggregates and reducing stability over time, which isn’t a net improvement in tilth. Because it requires fuel, machinery, and labor, it’s often costly. Disturbing the soil can bring weed seeds to the surface and trigger germination, sometimes leading to more weeds rather than fewer. It also leaves the soil more exposed to wind and water erosion, increasing erosion risk rather than reducing it. And it cannot guarantee the elimination of all weeds, since some survive or resettle after cultivation. So the statement that best reflects cultivation as a weed-control method is that it can damage soil structure, is costly, and encourages weeds.