What is one of the main reasons for managing excess phosphorus in the soil?

Managing excess phosphorus in the soil is primarily focused on preventing environmental issues such as water pollution. High levels of phosphorus can lead to runoff, entering nearby water bodies and contributing to problems like algal blooms. These blooms can deplete oxygen levels in the water, harm aquatic life, and disrupt entire ecosystems.

Controlling phosphorus levels is crucial for maintaining the health of water systems and ensuring the sustainability of agricultural practices. While nitrogen levels, crop yields, and soil structure may be important factors in agricultural management, the acute concern with phosphorus specifically ties back to its significant environmental impacts, making the prevention of water pollution the most pressing reason for its management.