Fertilizers are substances that provide essential nutrients to plants, enhancing their growth and productivity. They can be organic, derived from natural sources like compost and manure, or inorganic, made from synthetic chemicals. The primary nutrients found in fertilizers include nitrogen, phosphorus, and potassium, which are crucial for plant health and development. Using fertilizers can significantly improve crop yields and soil fertility. However, it's important to apply them responsibly to avoid environmental issues such as water pollution and soil degradation. Sustainable practices, such as using organic fertilizers and crop rotation, can help maintain soil health while supporting agricultural productivity.