共 26 条
- [1] BOWER SA, 1940, IND ENG CHEM ANAL ED, V12, P411
- [2] BOWER SA, 1940, SOIL SCI SOC AM P, V5, P86
- [4] GEDROIZ KK, 1914, ZH OPYT AGRON, V13, P363
- [7] HISSINK DJ, 1924, T FARADAY SOC, V20, P552
- [8] HISSINK DJ, 1922, INT MITT BODENK, V12, P81
- [9] KELLEY EP, 1931, SOIL SCI, V31, P25
- [10] KELLEY EP, 1924, CALIF AGR EXPT STA T, V15, P1