Bacteriological studies of the fixation of nitrogen in certain Colorado Soils
Sackett, W.G.
Bacteriological studies of the fixation of nitrogen in certain Colorado Soils - Fort Collins 1911 - 1-42 p. - Soil, Nitrogen Colorado Agricultural Experiment Station. Bulletin No. 179 .
Bacteriological studies of the fixation of nitrogen in certain Colorado Soils - Fort Collins 1911 - 1-42 p. - Soil, Nitrogen Colorado Agricultural Experiment Station. Bulletin No. 179 .