Peatlands are subject to increased pressure from environmental and land-use change, particularly in temperate regions such as the US Midwest. Bryophytes dominate the ground cover of peatlands and play a key role in their ...

Nitrogen deficiency in soil often limits corn (Zea mays L.) growth, thus requiring fertilizer N inputs to achieve optimum yields. Nitrogen fertilizer is becoming more expensive and methods are needed to improve N use ...

Livestock producers in the United States are increasingly aware of environmental issues associated with production, storage, treatment and utilization of animal wastes. It is well known that fresh and composted manure can ...