Snyder, HarryUniversity of Minnesota. Chemical Division2017-01-312017-01-311897-06Snyder, Harry. Effects of the rotation of crops upon the humus content and the fertility of soils. Production of humus from manures. 1897. Saint Paul, Minn.: University of Minnesota. Agricultural Experiment Station. Bulletin 53, page 1-35https://hdl.handle.net/11299/183794This archival publication may not reflect current scientific knowledge or recommendations. Current information available from University of Minnesota Agricultural Experiment Station: http://www.maes.umn.edu/enNewsletter or Bulletin