Abstract:A search has been conducted for suitable native materials for potting and rooting mixtures as substitutes for peat moss in the production of ornamental plants in Puerto Rico. Materials such as sawdust, wood shavings, muck soil, residues from the tobacco industry, spent coffee, coffee parchment, dry coffee leaves, sugarcane bagasse, and peat moss were mixed with perlite, vermiculite, calcined clay, or sand and these various mixtures were evaluated as rooting media. Asparagus sprengeri did not grow well in tobac… Show more
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