共 20 条
[3]
BESOAIN E, 1958, AGRICULTURA TECNICA, V18, P110
[4]
CARPENI G, 1947, B SOC CHIM FR, V14, P501
[5]
DAVID DJ, 1968, ANALYST, V93, P78
[6]
SULFUR DETERMINATION IN SOIL EXTRACTS BY AN INDIRECT ATOMIC ABSORPTION SPECTROPHOTOMETRIC METHOD
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1969, 33 (06)
:974-&
[7]
GALINKO GG, 1974, THESIS U CALIFORNIA
[8]
GORLACH E, 1969, AGROCHIMICA, V13, P506
[9]
Hashimoto I, 1960, 7 CLAYS CLAY MIN C, P102
[10]
HINGSTON FJ, 1972, J SOIL SCI, V23, P179