"URO-Sulf Sulphur, Weight 1 Kg" is a product that contains 1 kilogram of sulfur under the brand name "URO-Sulf." Sulfur is a chemical element that is commonly used in agriculture and gardening as a soil amendment and plant nutrient. Sulfur plays a crucial role in promoting healthy plant growth and soil quality. It is often used to lower soil pH, making it more acidic, which can be beneficial for certain types of plants that prefer acidic conditions. Sulfur can also help improve soil structure and enhance the availability of other essential nutrients to plants.