The role of the extension man in fertilizer promotion
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| Main Authors: | , |
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| Format: | Texto biblioteca |
| Language: | |
| Published: |
Bangkok (Thailand) ESCAP
1987
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| Subjects: | FERTILIZERS, EXTENSION ACTIVITIES, ADVISORY OFFICERS, ENGRAIS, VULGARISATION, ABONOS, EXTENSION, CONSEILLER AGRICOLE, AGENTES DE EXTENSION, |
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