| Label | Vocabulary | Concept | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Chemical ecology | LC Subject Headings (LCSH) |
General Subdivision | sh2018002553 | |
| 2. | Heavy metal content | LC Subject Headings (LCSH) |
General Subdivision | sh2018002960 | |
| 3. | Effect of soil moisture on | LC Subject Headings (LCSH) |
General Subdivision | sh2010009220 | |
| 4. | Effect of calcium on | LC Subject Headings (LCSH) |
General Subdivision | sh2014002233 | |
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