Soil fertility and fertilizers

Originally published c1912.: Access to the digital version of this title and other related titles can be found on CHLA (Core Historic Literature of Agriculture) at http://chla.library.cornell.edu, an electronic collection of core historical materials on US agriculture and rural life published from the mid-19th to the mid-20th century. A full list of Cornell University Library's digital collections can be found at http://www.library.cornell.edu.