Hunger signs in crops : a symposium /
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| Main Authors: | , , |
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| Format: | Texto biblioteca |
| Language: | eng |
| Published: |
Washington : ASA : The National Fertilizer Association,
1949
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| Subjects: | Enfermedades carenciales de las plantas., Hambre., Agricultura., Cosechas., Cultivos alimenticios., |
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