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480 The legacy of corn nitrogen fertilizer: Study shows lengthy impact in tile drained systems

ScienceDaily
ScienceDaily · 09/12/2024 14:23 EDT

The legacy of corn nitrogen fertilizer: Study shows lengthy impact in tile drained systems

Midwestern soils are among the most productive in the world, thanks in part to extensive tile drainage systems that remove excess water from crop fields. But water isn't the only thing flowing through tile drains. Nitrogen moves along with soil water into drainage ditches, streams, and ultimately into the Mississippi River Basin, where the nutrient contributes to massive algal blooms and hypoxic conditions that impact aquatic life in the Gulf of Mexico.

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