共 8 条
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- [2] BLACKBEARD J, 1982, ARABLE FARMING FEB, P45
- [3] BLACKBEARD J, 1982, ARABLE FARMING FEB, P49
- [4] Hornby D., 1979, SOIL BORNE PLANT PAT, P133
- [5] MATTINGLY GEG, 1980, 1979 ROTH EXP STAT 1, P227