共 10 条
[1]
HENSLER R. F., 1970, Transactions of the American Society of Agricultural Engineers, V13, P726
[2]
Jackson M. L., 1965, SOIL CHEMICAL ANALYS
[3]
KEENEY DR, 1966, SOIL SCI SOC AM PRO, V30, P583, DOI 10.2136/sssaj1966.03615995003000050016x
[4]
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-+
[5]
Murphy J., 1986, ANN CHEM ACTA, DOI 10.1016/S0003-2670(00)88444-5
[6]
SCHWAB GO, 1974, INSTRUMENT NEWS AGR, V55, P22
[7]
STEEL R. G. D., 1960, PRINCIPLES PROCEDURE
[8]
Witzel S.A., 1969, T ASAE, V12, P338
[9]
YOUNG R, IN PRESS
[10]
1971, STANDARD METHODS EXA