共 13 条
- [1] Notes on use of glass color standards for determination of phosphorus by deniges colorimetric method [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1931, 3 : 0282 - 0284
- [4] EMMERY EM, 1931, KY AGR EXP STA B, V314
- [6] Gilbert BE, 1927, J AGRIC RES, V35, P0185
- [7] McCOOL M. M., 1928, JOUR AMER SOC AGRON, V20, P778
- [8] McCOOL M. M., 1926, MICHIGAN AGRIC EXP STA QUART BULL, V9, P60
- [9] Pettinger NA, 1931, J AGRIC RES, V43, P0095
- [10] PIERRE W. H., 1933, JOUR AMER SOC AGRON, V25, P144