Controlled-release fertilizers are specially formulated products that release nutrients gradually over time. This slow release allows plants to absorb the nutrients more efficiently, reducing the risk of over-fertilization and nutrient runoff. These fertilizers are often coated with materials that regulate the release rate based on temperature, moisture, or microbial activity in the soil. By using controlled-release fertilizers, gardeners and farmers can improve plant growth and health while minimizing environmental impact. This method is particularly beneficial for crops and landscapes, as it ensures a steady supply of essential nutrients, promoting better yields and reducing the need for frequent applications of fertilizer.