共 8 条
- [1] STATISTICAL-METHODS IN SOIL CLASSIFICATION RESEARCH [J]. ADVANCES IN AGRONOMY, 1976, 28 : 37 - 70
- [2] Norris J. M., 1970, Soils and Fertilizers, V33, P313
- [3] Wada K., 1986, ANDO SOILS JAPAN
- [6] WARKENTIN BP, 1985, 6TH INT SOIL CLASS W, V1, P121
- [7] WEBSTER R, 1977, QUANTITATIVE NUMERIC
- [8] 1972, USDA1 SOIL CONS SERV