The Washington Post – A Washington State University analysis in 1995 showed that biodynamic farms typically had better soil quality, lower crop yields and equal or higher profitability. Improving soil quality is at the heart of biodynamics. The eight preparations promoted by Steiner are all geared toward that goal. Lundy said its methods enable practitioners to irrigate less, spray pesticides less often while maintaining reliable yields.
The New York Times – In theory, adding food to digesters processing manure or sewage has advantages, said Chad Kruger, director of the Washington State University Center for Sustaining Agriculture and Natural Resources, chief among them that it increases methane production. But without an infrastructure in place to handle, transport and process the material, building that kind of energy system has been too difficult and expensive to spread widely.