共 16 条
[1]
Baldwin M, 1938, USDA YB, P979
[2]
FLAME PHOTOMETRY - A RAPID ANALYTICAL PROCEDURE
[J].
INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION,
1945, 17 (10)
:605-611
[3]
BROWN IC, 1938, USDA TECH B, V609
[5]
FLINT RF, 1930, CONN GEOL NAT HIST S, V47
[6]
JAHNS RH, 1951, SURFICIAL GEOLOGY MO
[7]
JEFFRIES CD, 1948, SOIL SCI SA, V12, P135
[9]
LUNT HA, 1948, CONN AGR EXPT STA B, V523
[10]
Lyford W. H., 1947, SOIL SCI SOC AMER PROC, V11, P486