共 15 条
[1]
BLACKMER AM, 1978, AGR ABSTR, P137
[2]
BLACKMER AM, 1977, AGR ABSTR, P146
[5]
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-&
[6]
BREMNER JM, 1979, NATURAL FERTILIZER I
[7]
CRUTZEN P J, 1977, Ambio, V6, P112
[8]
HAHN J, 1977, Z NATURFORSCH A, V32, P190
[9]
LIU SC, 1977, TELLUS, V29, P251, DOI 10.1111/j.2153-3490.1977.tb00732.x
[10]
MATTHIAS AD, UNPUBLISHED