共 12 条
- [1] CASSIL C. C., 1941, Journal of the Association of Official Agricultural Chemists, V24, P196
- [2] An attempted fractionation of the soil phosphorus [J]. JOURNAL OF AGRICULTURAL SCIENCE, 1938, 28 : 234 - 246
- [4] FLEURY P, 1935, J PHARM CHIM, V21, P247
- [5] GERRITZ HW, 1940, J ASS OFFICIAL AGR C, V23, P321
- [6] KOENIG R. A., 1942, Industrial and Engineering Chemistry. Analytical edition, V14, P155, DOI 10.1021/i560102a026
- [7] Kurtz L.T., 1942, IND ENG CHEM ANAL ED, V14, P855, DOI DOI 10.1021/I560111A008
- [9] Mission G., 1908, CHEM ZTG, V32, P633
- [10] PEECH M, 1947, 757USDA CIR