Which of the following is an expected benefit of crop rotation?

Crop rotation is a farming practice that involves alternating the types of crops grown on a particular piece of land over various seasons or years. One of the most significant benefits of this practice is the enhancement of soil fertility. Different crops have varying nutrient requirements and contributions, which leads to a balanced use of soil resources.

When legumes, for example, are included in a crop rotation, they can fix nitrogen from the atmosphere into the soil, thereby improving the nitrogen content and overall fertility. Additionally, different plants can help prevent the depletion of specific nutrients from the soil, leading to a more balanced soil nutrient profile. This practice also promotes better soil structure and health, reducing the risk of erosion and increasing organic matter content.

In contrast to enhanced soil fertility, increased groundwater use or higher pesticide dependency are generally not considered benefits of crop rotation. Crop rotation often leads to reduced pesticide use since different crops can disrupt pest and disease cycles. Furthermore, rotating crops can enhance water conservation, as some plants are better at utilising available water than others. Thus, the benefits of crop rotation are essential for sustainable agriculture and improving crop yields over time.