San-SRS is an environmentally friendly innovation that utilizes disposable baby diaper waste into a highly nutritious fertilizer. Containing the main nutrients Nitrogen (N), Phosphorus (P), and Potassium (K) from urine residue and water-absorbing polymers such as hydrogel polyacrylate and cellulose, this fertilizer is able to maintain soil moisture and release nutrients gradually. Coated with Corn cob charcoal, this fertilizer is more efficient, long-lasting, and helps improve soil quality.