What type of fertilizer releases nutrients slowly over time?

Slow-release fertilizer is designed to gradually release nutrients into the soil over an extended period. This is achieved through various mechanisms, such as coating the nutrients in a controlled-release compound or using organic materials that break down slowly. This gradual release supports plant growth more consistently, reducing the risk of nutrient leaching and providing plants with a steady supply of essential nutrients. This method of fertilization helps minimize the need for frequent applications, making it a convenient and effective choice for both home gardeners and professional horticulturists.

In contrast, liquid fertilizers typically provide immediate nutrient availability but do not have the sustained release that slow-release fertilizers offer. Organic compost enriches the soil with a variety of nutrients, but its nutrient release is also dependent on microbial activity and can vary significantly. Granular fertilizers may release nutrients at a different rate depending on their formulation, but they are not categorized as slow-release specifically unless indicated.