Hunger signs in crops : a symposium /
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Main Authors: | Bear, Firman E., colab., National Fertilizer Association (Estados Unidos)., American Society of Agronomy (Estados Unidos). |
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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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