Highlights Denitrifying woodchip bioreactors treat nitrate-N in a variety of applications and
geographies. This review focuses on subsurface drainage bioreactors and bed-style …

At present, about 299 Mha (or 18%) of the arable and permanent cropped areas worldwide
are irrigated and, although drainage is an important component of irrigation, only 22% of …

Inclusion of a rye cover crop into maize-based systems can offer environmental benefits, but
adoption of the practice in the US Midwest is still low. This is related to the possible risk of …

Nitrogen sourced from agricultural fertilizers is a major contributor to water pollution. Despite
policies targeting a range of farming practice changes, the goal of substantially reducing …

Woodchip bioreactor (WBR) is one of the green infrastructures in the agriculture system to
reduce nitrate from agricultural drainage and stormwater. A lot of abiotic factors have been …

Nitrate from artificial drainage pipes (tiles) underlying agricultural fields is a major source of
reactive N, especially NO3, in surface waters. A novel approach for reducing NO3 loss is to …

Abstract The Iowa Nutrient Reduction Strategy (NRS) aims to reduce nutrient loads in
waterways from nonpoint sources such as farm fields. Farmers' voluntary adoption of soil …

Growing interest in sustainability of food production has put pressure on producers to
examine their production practices. In particular, farmers' use of conservation practices is …

Excess nitrogen (N) causes numerous water quality problems, and in the upper Mississippi
River Basin, much of the excess N results from landscape modifications necessary for row …

Diversified cropping systems integrated with livestock production can provide substantial
soil conservation and water quality benefits, yet farmers in the US Corn Belt have shifted …