共 5 条
- [1] Black CA, 1956, SOIL SCI SOC AM J, V20, P176, DOI 10.2136/sssaj1956.03615995002000020010x
- [3] OSTLE B, 1954, STATISTICS RESEARCH
- [4] TERMAN G. L., 1962, ADVANCES AGRON, V14, P265, DOI 10.1016/S0065-2113(08)60440-X
- [5] WHITE R. F., 1956, Soil Science Society of America. Proceedings, V20, P179