共 11 条
- [1] BAVER LD, 1937, SOIL SCI SOC AM P, V1, P431, DOI DOI 10.2136/SSSAJ1937.03615995000100000075X
- [2] Bodman GB., 1937, SOIL SCI SOC AM P, V2, P45, DOI 10.2136/sssaj1938.036159950002000C0007x
- [3] EDLEFSEN NE, 1941, T AM GEOPHYS UNION, P695
- [4] FIREMAN MILTON, 1939, SOIL SCI SOC AMER PROC, V4, P71
- [5] FREE G. R., 1940, SOIL SCI SOC AMER PROP, V5, P390
- [6] HUBERTY MR, 1943, AMER SOC HORT SCI P, V42, P39
- [7] PILLSBURY AF, 1944, CALIF AGR EXP STA B, V686
- [8] PILLSBURY AF, 1941, CALIF AGR EXP STA B, V649
- [9] Powers WL, 1934, J AGRIC RES, V49, P1125
- [10] Slater C. S., 1931, USDA TECH B, V232