Losses of nitrogen from agriculture are a major threat to environmental and human health at
local, regional and global scales. Emerging evidence shows that climate change and …

Although phosphorus (P) is an essential nutrient for biological productivity, it can cause
freshwater degradation when present at fairly low concentrations. Monitoring studies using …

Improved prediction of optimal N fertilizer rates for corn (Zea mays L.) can reduce N losses
and increase profits. We tested the ability of the Agricultural Production Systems sIMulator …

Nitrogen fertilization is critical to optimize short-term crop yield, but its long-term effect on soil
organic C (SOC) is uncertain. Here, we clarify the impact of N fertilization on SOC in typical …

Recently, interest in denitrification bioreactors to reduce the amount of nitrate in agricultural
drainage has led to increased installations across the US Midwest. Despite this recent …

Winter rye (Secale cereale L.) cover crop (RCC) has potential to reduce NO3–N loss from
corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] fields. However, RCC effects on …

Global maize production alters an enormous soil organic C (SOC) stock, ultimately affecting
greenhouse gas concentrations and the capacity of agroecosystems to buffer climate …

E normous challenges were presented by the 2012 drought. Poor water availability and high
temperatures resulted in significant stress during critical phases of corn (Zea mays L.) and …

Nutrients in drainage waters from the Upper Mississippi River Basin states have been a well-
documented contributor to the Gulf of Mexico hypoxic zone for decades, and in response …

Agricultural systems are being challenged to decrease water use and increase production
while climate becomes more variable and the world's population grows. Low water use …