Let down by electric utilities, farmers bet on natural gas as a more promising way to make a return from cow manure. This story is the second in a three-part series. Read the first and third ...

A Danish company’s plans to turn cow manure into renewable energy in Minnesota and Wisconsin’s dairy country have tanked, at least for now. Nature Energy planned to build several large-scale anaerobic ...

Biochar can be produced from a variety of feedstocks, including wood chips, corn cobs, or separated manure solids. Its ...

A new study shows that systems designed to capture methane from cow manure, called dairy digesters, are highly effective. But ...

Researchers at the University of Minnesota have long wanted to make something out of the millions of gallons of manure produced on the state’s farms. Roger Ruan and a team of researchers have ...

With silage harvest underway in Minnesota and North Dakota, another critical season begins: fall manure application. After choppers leave the field, farmers turn to dairy manure to prepare the soil ...

If the third time is a charm, Michael Happ might finally make an impression on federal lawmakers and administrators with his fact-filled, 24-page report on the Department of Agriculture’s (USDA) ...

Due to strict environmental regulations, farmers are not allowed to spread all of their manure on their land. At the same time, they use synthetic fertilizers to provide their crops with sufficient ...

Composting is one of the most effective ways to manage livestock manure and convert the waste into a valuable soil amendment. With fertiliser prices soaring almost every month, making own compost ...