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The fixation of nitrogen in Colorado soils : the distribution of the nitrates and their relation to the alkalis
Headden, William P. (William Parker)
1913
Agricultural Experiment Station of the Agricultural College of Colorado
Fort Collins, Colo.
Cover title. "May, 1913."
Soils Nitrogen content Nitrogen Fixation
Colorado
1 digital file (47 p. ; 2524 KB)
eng
Bulletin (Colorado Agricultural Experiment Station) ; 186
UCSU20/2.3/186/INTERNET
http://hdl.handle.net/10176/co:8163
703286051
2011-03-15T21:26:32.123Z