共 20 条
[1]
Bremner J.M., 1965, METHODS SOILS ANAL P, P1324, DOI DOI 10.1007/S10661-021-09106-X
[3]
DETERMINATION AND ISOTOPE-RATIO ANALYSIS OF DIFFERENT FORMS OF NITROGEN IN SOILS .3. EXCHANGEABLE AMMONIUM NITRATE AND NITRITE BY EXTRACTION-DISTILLATION METHODS
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1966, 30 (05)
:577-&
[4]
Dahnke W.C., 1973, SOIL TESTING PLANT A, P97
[5]
GIANELLO C, 1985, THESIS IOWA STATE U
[6]
Keeney D. R., 1982, Methods of soil analysis. Part 2. Chemical and microbiological properties, P711
[7]
KEENEY DR, 1966, SOIL SCI SOC AM PRO, V30, P583, DOI 10.2136/sssaj1966.03615995003000050016x
[8]
DETERMINATION AND ISOTOPE-RATIO ANALYSIS OF DIFFERENT FORMS OF NITROGEN IN SOILS .6. MINERALIZABLE NITROGEN
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1967, 31 (01)
:34-+
[10]
A LABORATORY METHOD FOR EVALUATION OF AVAILABLE NITROGEN IN SOIL
[J].
ACTA AGRICULTURAE SCANDINAVICA,
1980, 30 (02)
:149-156