Can biosolids give a boost to cover crops in dryland, integrated grazing-crop systems?

In 1994, Craig Cogger and Andy Bary established a long-term biosolids trial in central Washington that, with support from NW Biosolids and King County, is still on-going and has allowed us to quantify numerous benefits of biosolids applications for soils and crop yields in these low rainfall, dryland (non-irrigated) systems. Over the years, we’ve wanted to keep the design of the experiment consistent so that we could track these long-term changes, but as fa