date:May 14, 2012
ing to peak in the next few years, so we need to start thinking about recycling phosphorous.
Soil Association study
However, the efficiency of the technique was recently questioned by the Soil Association, which commissioned an independent report to assess the benefits of AD on the Midland Pig Producers' mega-pig farm project at Foston. The organisation looked at examples in Germany and Denmark, where AD units have been installed on large farm operations, and concluded that AD did not presen