How the humble woodchip is cleaning up water worldwide

Australian pineapple, Danish trout, and Midwestern U.S. corn farmers are not often lumped together under the same agricultural umbrella. But they and many others who raise crops and animals face a common problem: excess nitrogen ...

Boxing up ag field nitrogen

Spring in America's heartland is often wet. That makes its soil too soft for planting. One solution to that issue is tile drainage. Growers insert a series of pipes (drain tiles) under their fields, which drains water from ...

Steel byproducts trap phosphorous in agricultural drainage water

The nitrogen and phosphorous that nurture crops become pollutants when they drain into lakes and streams. Woodchip bioreactors have proven useful in removing nitrates from tile drainage water, but researchers are still searching ...

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