共 26 条
- [1] BARNES JS, 1975, 229 NC AGR EXPT STAT, P1
- [2] Beaton J., 1973, SOIL TESTING PLANT A, P133
- [6] MEHLICH A., 1957, SOIL SCI SOC AMER PROC, V21, P625
- [9] MEHLICH A, 1973, Communications in Soil Science and Plant Analysis, V4, P475, DOI 10.1080/00103627309366469
- [10] MEHLICH A, 1972, Communications in Soil Science and Plant Analysis, V3, P417, DOI 10.1080/00103627209366396