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| Amino acids and sugars (1) |
| Aminoácidos y azúcares (1) |
| Barley plants (1) |
| Nitrogen and sulfur (1) |
| Nitrógeno y azufre (1) |
| Plantas de cebada (1) |
| Amino acids and sugars (1) |
| Aminoácidos y azúcares (1) |
| Barley plants (1) |
| Nitrogen and sulfur (1) |
| Nitrógeno y azufre (1) |
| Plantas de cebada (1) |