The importance of an extended use of high quality seed of improved varieties.
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| Main Author: | |
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| Format: | Texto biblioteca |
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| Published: |
1967
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| Subjects: | VARIETIES, SEED, QUALITY, PLANT PRODUCTION, VARIETE, SEMENCE, QUALITE, PRODUCTION VEGETALE, VARIEDADES, SEMILLAS, CALIDAD, PRODUCCION VEGETAL, |
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