Fertilizer and related inputs demonstrations and demonstration techniques
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| Main Authors: | , , |
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| Format: | Texto biblioteca |
| Language: | |
| Published: |
1976
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| Subjects: | FAO NORAD, EXTENSION ACTIVITIES, FERTILIZERS, TRIAL METHODS, VULGARISATION, ENGRAIS, EXTENSION, ABONOS, METHODE D'ESSAI, METODOS DE ENSAYO, |
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