Crop rotation in agriculture is the practice of planting different crops in a planned sequence on the same land, rather than continuously growing the same crop, to improve soil health, manage pests and diseases, and optimize nutrient balance. 

It helps maintain and improve soil structure, fertility, and organic matter content. Different crops have varying nutrient needs, and rotating them allows for better nutrient cycling and prevents the depletion of specific nutrients in the soil. By optimizing soil health and nutrient availability, crop rotation can lead to higher yields and more productive farming practices.