共 27 条
- [1] Allison LE, 1965, AGRONOMY MONOGRAPHS, V9, P1367
- [2] [Anonymous], 1982, SAS USERS GUIDE
- [6] Chapman H.D., 1967, SOIL TESTING PLANT A, V2, P77
- [7] CRAWFORD R. F., 1961, AGRON JOUR, V53, P159
- [8] Fox R. H., 1983, PENNSYLVANIA AGR EXP, V843