共 5 条
- [1] BERLYN GP, 1976, BOTANICAL MICROTECHN
- [2] LOW-COST MACHINE FOR SEPARATION OF ROOTS FROM SOIL MATERIAL [J]. JOURNAL OF RANGE MANAGEMENT, 1976, 29 (06): : 506 - 507
- [3] NEWMAN ET, 1965, J APPL ECOL, V2, P139
- [4] A COMPARISON OF 3 METHODS FOR ESTIMATING ROOT LENGTH [J]. AGRONOMY JOURNAL, 1970, 62 (04) : 451 - +