Nitrogen), which assesses effects of farming systems on nitrogen (N) dynamics at the catchment level. Its main innovation is …

field size, energy price, and energy source on the breakeven price of corn. We estimated yield response to nitrogen (N) for …

The intensity of milk production from pasture based dairy farming systems is often related to nitrogen (N) losses. This …

Production and price risks affect optimal nitrogen use as well as the effects of nitrogen taxation if farmers’ risk … aversion is taken into account. We apply a bio-economic model to investigate the influence of risk aversion on nitrogen use in … of changes in these sources of risks on optimal levels of nitrogen use and its influence on the effects of nitrogen …

A 45% reduction in riverine total nitrogen flux from the 1980–1996 time period is needed to meet water quality goals in … the Mississippi Basin and Gulf of Mexico. This paper addresses the goal of reducing nitrogen in the Mississippi River … nitrogen loading from tile drained agriculture using a simulation model and expert review. Second, information about the net …

impacts on nutrient fluxes (nitrogen and phosphorus) and land use as the result of a change from a meat based diet to a … reference situation. Total emissions of nitrogen and phosphorus into water decrease (between 15% and 11% for nitrogen and by 5 …% to 6% for phosphorus) and nitrogen concentrations in groundwater change substantially depending on the intensity of …

imports are affecting the nitrogen fertilizer industry. A spatial competition model of the US nitrogen fertilizer industry was … developed to determine the likely future spatial distribution of production and flows for nitrogen. The model minimizes …

(CO2), methane (CH4), and nitrous oxide (N2O). Replacing grass silage with maize silage is a feeding strategy to reduce …

]) reduces enteric methane (CH4) emission from beef cattle. However, feeding CDDGS (∼30% crude protein [CP] DM) or wheat …