Reference list on the electric fixation of atmospheric nitrogen and the use of calcium cyanamid and calcium nitrate on soils /
| Main Author: | |
|---|---|
| Corporate Authors: | , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
G.P.O.,
1910
|
| Series: | Bulletin (United States. Bureau of Soils) ;
no. 63 |
| Subjects: |