共 25 条
- [1] [Anonymous], 1970, OFFICIAL METHODS ANA
- [2] BAUER A, 1983, N DAK FARM RES, V40, P27
- [3] Brady N.C., 1984, NATURE PROPERTIES SO, Vninth
- [4] ORGANIC COMPONENT OF WIND-EROSION-GENERATED SOIL-DERIVED AEROSOL [J]. SOIL SCIENCE, 1976, 121 (03) : 146 - 155
- [9] ERDMAN R. L., 1942, SCI AGRIC [OTTAWA], V22, P533
- [10] ERDMAN RL, 1938, THESIS U ALBERTA EDM