共 14 条
[1]
ADRIANO D C, 1973, Journal of Environmental Quality, V2, P396, DOI 10.2134/jeq1973.00472425000200030022x
[2]
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]
Jackson ML, 1958, SOIL CHEMICAL ANALYS
[6]
JONES JB, 1969, DEV APPL SPECTROS A, V7, P152
[7]
LIEBHARDT WC, 1973, AGRON ABS, V65, P177
[8]
Schales O, 1941, J BIOL CHEM, V140, P879
[10]
STECKEL JE, 1966, 2ND TECHN S, P116