Urine scalding of grass is due to the nitrogen in your dog’s urine. Nitrogen is a by-product of protein breakdown and is a normal component of your dog’s urine. A bit of nitrogen acts as a food source for plants, such as in fertilizer, but too much will burn the grass. It is not related to the pH of the urine. You can reduce burning by encouraging your dog to drink water to dilute the urine, thereby diluting the nitrogen. It is not recommended to restrict protein from your dog. Watering the grass after your dog urinates or training your dog to urinate in specific locations away from your lawn are the only ways to prevent the problem.