共 14 条
[2]
A REVIEW OF RECENT WORK ON SOIL ORGANIC MATTER .1.
[J].
JOURNAL OF SOIL SCIENCE,
1951, 2 (01)
:67-82
[5]
Jackson M.L., 1958, SOIL CHEM ANAL
[7]
McVEAN D. N., 1952, JOUR BRIT GRASSLAND SOC, V7, P21
[8]
Piper C.S., 1966, SOIL PLANT ANAL ASIA