共 16 条
[1]
[Anonymous], 1981, J SOIL WATER CONSERV, V36, P82
[3]
CHANG S. C., 1957, SOIL SCI, V84, P133, DOI 10.1097/00010694-195708000-00005
[6]
MURPHY J, 1962, ANAL CHIM ACTA, V26, P31
[7]
A MODIFIED CHANG AND JACKSON PROCEDURE FOR ROUTINE FRACTIONATION OF INORGANIC SOIL PHOSPHATES
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1966, 30 (05)
:563-&
[10]
SHARPLEY AN, 1983, OKLA STATE U AGR EXP, V159