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Plant Coleus Seeds: Sow seed in cell packs or flats, use a sterilized soil-less mix. Press seeds into soil, do not cover. Needs light to germinate. Kept at 70-75°F., seedlings emerge in 10-14 days. Transplant seedlings of dwarf coleus into the garden 9 to 12 in. apart. Plant larger coleus varieties 12 to 18 in. apart.
Grow Coleus: Part sun to light shade. Rich, moist soil. The Premium Sun series of coleus will tolerate full sun in many areas, prefers part shade in the low humidity climates common to the Western United States. Remove coleus flowers as they form to keep foliage visible, healthy and growing. Near the end of the season, allow some of the nectar-rich flowers to form. Blooms will attract hummingbirds and butterflies. Coleus is an excellent container plant and can even be grown in a brightly lit window indoors.
Amino acid, any of a group of organic molecules that consist of a basic amino group (−NH2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid. The term amino acid is short for “α-amino [alpha-amino] carboxylic acid.” Each molecule contains a central carbon (C) atom, termed the α-carbon, to which both an amino and a carboxyl group are attached. The remaining two bonds of the α-carbon atom are generally satisfied by a hydrogen (H) atom and the R group. The formula of a general amino acid is:
The amino acids differ from each other in the particular chemical structure of their R group.
Humic acid, one of two classes of natural acidic organic polymer that can be extracted from humus found in soil, sediment, or aquatic environments. The process by which humic acid forms in humus is not well understood, but the consensus is that it accumulates gradually as a residue from the metabolism of microorganisms. Its structure is unlike that of proteins or carbohydrates, the two most common organic polymers found in biological material; instead, humic acid can be characterized as a loose assembly of aromatic polymers of varying acidity and reactivity.
Humic acid has the average chemical formula C187H186O89N9S1 and is insoluble in strong acid (pH = 1). A 1:1 hydrogen-to-carbon ratio indicates a significant degree of aromatic character (i.e., the presence of benzene rings in the structure), whereas a low oxygen-to-carbon ratio indicates fewer acidic functional groups than occur in fulvic acid, the other acidic organic polymer that can be extracted from humus. Transition and heavy metals—for example, Fe3+ or Pb2+—as well as other compounds having aromatic or hydrophobic (water-insoluble) chemical structures (i.e., organic pesticides or anthropogenic hydrocarbons), react strongly with humic acid. This property makes it an effective agent in sequestering many of the pollutants in terrestrial and aquatic environments.