Soil chemistry is the study of the chemical composition and properties of soil. It focuses on how different elements and compounds in the soil affect plant growth and the environment. Key components include nutrients like nitrogen, phosphorus, and potassium, which are essential for plants. Understanding soil chemistry helps farmers and gardeners improve crop yields and maintain healthy ecosystems. Additionally, soil chemistry examines how pollutants and chemicals interact with soil. This includes studying the effects of fertilizers and pesticides on soil health. By analyzing soil samples, scientists can determine the best practices for sustainable agriculture and environmental protection, ensuring that our land remains fertile and productive.