The fixation of nitrogen in Colorado soils : a study of the Wellington district, Larimer County, Colorado / Headden, William P.(William Parker),1850-1932. text Fort Collins, Colo. : Agricultural Experiment Station of the Agricultural College of Colorado, 1921. eng application/pdf COABNRBC100252 Colorado Agriculture Bibliography Soils Nitrogen COAB_21726916.pdf "http://www.acns.colostate.edu/?page=copyright"
The fixation of nitrogen in Colorado soils : a study of the Wellington district, Larimer County, Colorado /
Headden, William P.(William Parker),1850-1932.
text
Fort Collins, Colo. : Agricultural Experiment Station of the Agricultural College of Colorado,
1921.
eng
application/pdf
COABNRBC100252
Colorado Agriculture Bibliography
Soils
Nitrogen
COAB_21726916.pdf
"http://www.acns.colostate.edu/?page=copyright"