A list of 15 sites across the US are listed as doing
research to see how different parts of the precision tillage
equation (products, methods, etc) affect the final crop,
soil quality, and other resource impact.
Among the sites are 9 Universities, plus the Orthman Research
Farm and 5 other private or public entities across the US. Visit
the Precision
Tillage website for a list and map of the projects.