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 ...

Tile drainage is a common practice used in agricultural fields to remove excess water, but it also transports harmful nutrients into water bodies, contributing to algal blooms that deprive aquatic ...

The massive underground infrastructure that allows farmers to cultivate crops on much of the world's most productive land has outlived its design life and should be updated, according to a new study.

WORTHINGTON, Minn. -- For years, conservationists in Minnesota have been concerned about agricultural drainage of Minnesota's farmlands. Miles upon miles of underground tile have been installed ...

In a new study, scientists have estimated that a new conservation practice known as saturated buffers could reduce nitrogen from agricultural drainage by 5 to 10 percent. Every summer, a "dead zone" ...

Subsurface hydrology and agricultural drainage systems play a critical role in managing water within cultivated landscapes. Subsurface drainage comprises networks of buried pipes (tile drains) and ...

The Gazette offers audio versions of articles using Instaread. Some words may be mispronounced. An increased use of agricultural drainage tile is one reason a 2025 deadline to reduce nitrate and ...

AMES, Iowa – Massive networks of drains, pipes and tiles that enable food production on much of the world’s most productive cropland are due for expansion and replacement to meet the demands of ...

The Iowa Department of Agriculture and Land Stewardship announced the last seven agricultural drainage wells in the state have been closed, which represents the end of about 30 years of research and ...

The Blue Earth River is 50 percent wider along its entire length than it was seven decades ago, largely because a generation of artificial drainage on the surrounding landscape has doubled the flow of ...