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- 饲养管理 (2)
- agriculture (1)
- farms, small (1)
- r (computer program language) (1)
- soil biochemistry (1)
- soil enzymology (1)
- spatial analysis (statistics) (1)
- statistical methods (1)
- sustainable agriculture (1)
- 兽医学 (1)
- 内科学 (1)
- 农业科学 (1)
- 国家公园 (1)
- 土壤生物学 (1)
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著者:
Richard E. Plant
Departments of Plant Sciences and Biological and Agricultural Engineering
University of California
Davis.
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