What is the maximum acceptable percentage of bare ground for safety in minimal input athletic fields?

The maximum acceptable percentage of bare ground for safety in minimal input athletic fields is established to minimize the risk of injury to athletes and maintain a safe playing environment. A threshold of no more than 10% bare ground is recommended because beyond this level, the risk of injuries, such as ankle sprains or falls, increases due to uneven surfaces. Maintaining a well-vegetated field not only provides a cushioning effect but also helps with soil stability and erosion control, contributing to the overall safety of the playing surface. While lower percentages may be preferable for optimal safety and field conditions, 10% is recognized as the threshold that balances safety with practical management of minimal input fields.