共 9 条
- [2] GARD L. E., 1956, Soil Science Society of America. Proceedings, V20, P279
- [3] LARSON WE, 1960, 7 T INT C SOIL SCI, V1, P629
- [4] PARKER D. T., 1957, SOIL SCI SOC AMER PROC, V21, P608
- [5] PARKER DF, IN PRESS
- [6] SCHALLER F. W., 1954, Agric. Engng., V35, P731
- [7] SCHALLER RW, 1954, AGR ENG, V35, P736
- [8] TYNER EH, 1946, J AM SOC AGRON, V38, P173
- [9] VAN WIJK W. R., 1959, SOIL SCI SOC AMER PROC, V23, P428