Flow monitoring system for artificial subsurface tile drainage

Rye cover crop treatment for nitrate-nitrogen reduction

This denitrification woodchip bioreactor removes nitrate from tile drainage water before entering the stream

The Ag Water Management research group at Iowa State University is a multi-tiered effort to study and analyze the impact of agricultural management practices on surface and subsurface drainage, from both a water quality and quantity perspective. The goal of this research is to study the fate and transport of water and contaminants on the agricultural landscape and to develop and promote practices that both minimize water quality impacts of agricultural production and maintain economic viability. To accomplish our goals, the group uses field and lab research facilities, a university extension presence, and publications and presentations.

Why is our research important to you?

Agricultural water management incorporates both surface and subsurface drainage. It involves variety of soil and water conservation strategies.  Projects associated with water management through this research group focus on environmental and agronomic impacts. Questions being investigated include: Is it possible to mitigate the impact cropping systems have on nitrate-nitrogen loss? If so, how? And, will mitigation techniques impact yield?



News & Events

"The choice is not whether to tile or not; the choice should be whether to crop or not."

The 2013 Drainage Research Forum was held Thursday, November 14, 2013 at the Regional Extension Center in Sioux Falls, South Dakota.