Answer :
Final answer:
Contour plowing is the agricultural method used to prevent erosion, which involves plowing along the contours of the land to reduce water runoff and soil loss.
Explanation:
The agricultural method used to prevent erosion is contour plowing. This practice involves plowing along the contours of the land, which helps to reduce the runoff of water and prevents the soil from being washed away.
This differs from intercropping, biological control (biocontrol), and integrated pest management (IPM), as these are methods that are mainly focused on pest management and increasing crop diversity rather than directly targeting erosion prevention.
Intercropping involves growing two or more crops in proximity to promote a variety of benefits including improved soil quality and pest management.
Biological control uses one species to naturally control the population of a harmful species, which is effective in managing pests and diseases without synthetic chemicals. IPM is a strategy that combines different pest management approaches with the aim of reducing reliance on synthetic pesticides.
Crop rotation is another effective method mentioned that improves soil fertility and breaks the cycle of weeds, insects, and diseases, which in turn can reduce dependence on pesticides. However, it is contour plowing that is directly associated with preventing soil erosion on farmlands.
