Follow these tips to prevent dog urine burn
Fertilize your lawn less, or not at all, in areas where your dog urinates.
Fertilized lawns may already have as much nitrogen as they can handle. Even a small amount of nitrogen in dog urine may be all that is needed to burn the lawn.
Spray areas where your dog urinates with water.
Pouring water on the area after your dog urinates will help to dilute the urine and lessen the effects of the nitrogen on your lawn.
Encourage your dog to drink more water.
The more your dog drinks, the less nitrogen will be concentrated in the urine and the less damaging it will be to your lawn. It will also be healthier for your dog as well.
Replant affected areas with a more urine-resistant grass.
Ryegrass and Fescue are the most urine-resistant type of grass, while Kentucky Bluegrass and Bermuda are the most sensitive.