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Vitamins | Comments |
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VITAMINS: As Plant Growth Substances A brief review of some, such as thiamine, niacin, biotin, ascorbic acid, yeast; refer to OA83-52; refer also to OBIII-201; OBII-269, etc. | 0 |
VITAMINS: Useful to Orchids Fungi provide niacin (nicotinic acid) which enhances the growth of seedlings; folic acid (a water-soluble vitamin) and thiamine (vitamin B/l) also stimulate growth; four combinations cited; refer to OR74-342; for scientific review refer to OB1-160-175 | 0 |