EXTRACTION OF ORGANIC NITROGEN AND AMMONIUM FROM SOIL WITH HYDROFLUORIC ACID

[1] Black CA, 1965, METHODS SOIL AN 2 ED, V9, P1179

[2] BREMNER J. M., 1959, JOUR AGRIC SCI, V52, P147, DOI 10.1017/S0021859600036625

[3] BREMNER J. M., 1959, JOUR AGRIC SCI, V52, P137, DOI 10.1017/S0021859600036613

[4] BREMNER J. M., 1965, Monographs of the American Society of Agronomists, V9, P1179

[5] STUDIES ON SOIL ORGANIC MATTER .3. THE EXTRACTION OF ORGANIC CARBON AND NITROGEN FROM SOIL [J]. JOURNAL OF AGRICULTURAL SCIENCE, 1949, 39 (03) : 280 - 282

[6] BROADBENT F. E., 1964, SOIL SCI, V98, P118, DOI 10.1097/00010694-196408000-00008

[7] CHOUDHRI M. B., 1957, SOIL SCI SOC AMER PROC, V21, P508

[8] DHARIWAL A. P. S., 1958, SOIL SCI, V86, P343, DOI 10.1097/00010694-195812000-00010

[9] AN EVALUATION OF NATURALLY OCCURRING FIXED AMMONIUM IN SOILS [J]. JOURNAL OF AGRICULTURAL SCIENCE, 1964, 63 : 297 - &

[10] HINMAN W. C., 1964, CANADIAN JOUR SOIL SCI, V44, P151

[1] Black CA, 1965, METHODS SOIL AN 2 ED, V9, P1179

[2] BREMNER J. M., 1959, JOUR AGRIC SCI, V52, P147, DOI 10.1017/S0021859600036625

[3] BREMNER J. M., 1959, JOUR AGRIC SCI, V52, P137, DOI 10.1017/S0021859600036613

[4] BREMNER J. M., 1965, Monographs of the American Society of Agronomists, V9, P1179

[5] STUDIES ON SOIL ORGANIC MATTER .3. THE EXTRACTION OF ORGANIC CARBON AND NITROGEN FROM SOIL [J]. JOURNAL OF AGRICULTURAL SCIENCE, 1949, 39 (03) : 280 - 282

[6] BROADBENT F. E., 1964, SOIL SCI, V98, P118, DOI 10.1097/00010694-196408000-00008

[7] CHOUDHRI M. B., 1957, SOIL SCI SOC AMER PROC, V21, P508

[8] DHARIWAL A. P. S., 1958, SOIL SCI, V86, P343, DOI 10.1097/00010694-195812000-00010

[9] AN EVALUATION OF NATURALLY OCCURRING FIXED AMMONIUM IN SOILS [J]. JOURNAL OF AGRICULTURAL SCIENCE, 1964, 63 : 297 - &

[10] HINMAN W. C., 1964, CANADIAN JOUR SOIL SCI, V44, P151