What method does contour farming use to manage land?

• A. Tilling all the land uniformly
• B. Planting rows along the slope
• C. Using cover crops on every hill
• D. Plowing and planting across the slope of the land

Answer: (D)

Contour farming is an agricultural practice that involves plowing and planting across the slope of the land rather than up and down the slope. This method utilizes the natural contours of the land to create ridges and furrows that follow the land's elevation, which helps to reduce soil erosion and water runoff. By creating these horizontal rows, the practice allows rainwater to collect more evenly and be absorbed into the soil rather than flowing straight downhill, which can lead to erosion and nutrient loss.

This practice is particularly effective in hilly or sloped terrain where traditional methods could exacerbate erosion issues. Implementing contour farming promotes sustainable agriculture by preserving soil and enhancing water conservation.