共 9 条
- [1] Bradstreet R., 1965, KJELDAHL METHOD ORGA, DOI 10.1016/C2013-0-12545-7
- [2] GOOCH F, UNPUBLISHED RESULTS
- [3] HUTTON R. G., 1958, Journal of the Science of Food and Agriculture, V9, P7, DOI 10.1002/jsfa.2740090102
- [4] JOHN RS, 1970, THESIS U ABERDEEN
- [5] MEARS B, 1921, J IND ENG CHEM, V13, P1054
- [6] PEPKOWITZ L. P., 1942, Industrial and Engineering Chemistry. Analytical edition, V14, P856, DOI 10.1021/i560111a009
- [7] WICKS L. F., 1942, Industrial and Engineering Chemistry. Analytical edition, V14, P760, DOI 10.1021/i560109a028
- [9] 1965, METHODS SOIL ANALYSI