共 20 条
- [12] NYE P. H., 1958, Plant and Soil, V9, P338, DOI 10.1007/BF01343831
- [14] SCOTTRUSSELL R, 1958, J SOIL SCI, V9, P101
- [15] SMITH STUART N., 1934, JOUR AMER SOC AGRON, V26, P785
- [16] SNAYDON RW, 1962, J EXP BOT, V13, P422, DOI 10.1093/jxb/13.3.422
- [20] 1977, 5318 PA AGR EXP STAT