Rolls of tile drainage piping sit a field, waiting for installation.

Better tile drainage: bioreactors could benefit from draining

Bioreactors are meant to filter nitrogen from tile water to help with runoff nutrient loads, but drying them out from time to time might increase their effectiveness

Bioreactors are meant to filter nitrogen from tile water and reduce extra nutrient running off int0 local rivers and lakes, but drying them out from time to time might increase their effectiveness.