共 17 条
- [1] AASHEIM TS, 1949, 468 MONT AGR EXP STA
- [2] ARMY T. J., 1961, SOIL SCI SOC AMER PROC, V25, P410
- [3] CHILCOTT EC, 1915, USDA268 B
- [4] DULEY FL, 1957, J SOIL WATER CONSERV, V12, P71
- [5] FINNELL HH, 1960, USDA39 PROD RES REP
- [6] GARDNER WH, 1965, METHODS SOIL ANALY 1, V9
- [7] GILKESON RA, 1965, 665 WASH AGR EXP STA
- [8] HIDE J. C., 1954, SOIL SCI SOC AMER PROC, V18, P234
- [9] LEGGETT GE, 1959, 609 WASH AGR EXP STA