Fertilizer training course
Illus.
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| Main Author: | |
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| Format: | Texto biblioteca |
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| Published: |
1979
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| Subjects: | FERTILIZER APPLICATION, TRAINING COURSES, EXTENSION ACTIVITIES, APPLICATION RATES, FERTILIZERS, FERTILISATION, COURS PROFESSIONNEL, APLICACION DE ABONOS, CURSOS DE CAPACITACION, VULGARISATION, DOSE D'APPLICATION, ENGRAIS, EXTENSION, DOSIS DE APLICACION, ABONOS, |
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| Summary: | Illus. |
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