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flag Drier soils trap more phosphorus, worsening water pollution from farm runoff, new research shows.

flag Excess phosphorus from decades of fertilizer use is polluting U.S. waterways, fueling harmful algal blooms and dead zones like the one in the Gulf of Mexico. flag While phosphorus doesn’t leach easily, it moves via soil erosion and runoff, harming ecosystems and drinking water. flag New research shows soil moisture, not just fertilizer, determines whether phosphorus builds up or depletes, with drier soils accumulating more. flag Factors like crop type and climate change further influence outcomes, highlighting the need for tailored, science-based management to reduce pollution and maintain farm productivity.

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