共 9 条
[1]
BOYDE A, 1969, J MICROS OXFORD, V90, P241
[3]
CHEN Y, 1976, SCANNING ELECTRON 3, P425
[4]
FLAIG W., 1954, Landbouwkundig Tijdschrift, V66, P306
[6]
GHOSH K, 1979, J SOIL SCI, V30, P735, DOI 10.1111/j.1365-2389.1979.tb01023.x
[9]
Schnitzer M., 1978, SOIL ORGANIC MATTER, P1, DOI DOI 10.1016/S0166-2481(08)70016-3