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	1.	A review of investigations in soil bacteriology. By Edward B. Voorhees ... and Jacob G. Lipman ... by Voorhees, Edward B. (Edward Burnett), 1856-1911 Lipman, Jacob Goodale, 1874-1939 [joint author.] Series: United States. Dept. of Agriculture. Office of experiment stations. Bulletin ; 194 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, Gov't. Print. Off., 1907 Availability: No items available. Add to cart (remove)
	2.	Reference list on the electric fixation of atmospheric nitrogen and the use of calcium cyanamid and calcium nitrate on soils. Comp. by Stephen Conrad Stuntz. by Stuntz, Stephen Conrad Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, Govt. print. off., 1910 Availability: No items available. Add to cart (remove)
	3.	Seasonal nitrification as influenced by crops and tillage. By C. A. Jensen... by Jensen, Charles A Series: United States. Bulletin ; 173. Material type: Text; Format: print available online ; Literary form: Not fiction Publication details: Washington, Govt. print. off., 1910 Online resources: Click here to access online Availability: No items available. Add to cart (remove)

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