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    Savanna Stylo

    Species: Savanna Stylo
    Scientific Name: Stylosanthes guianensis
    Cultivars:Savanna
    Growth Habit:Erect to semierect shrub 3-5 feet with strong branching. Leaf has three elongated, pointed leaflets. Produces yellow to orange flowers. Seeds are pale brown, but range from yellow to very dark brown.
    Flowering starts in mid October and lasts several weeks.
    Life Cycle:Perennial (except in Northern Florida)
    Origin:Tropical Central and South America.
    Production Season:April to November. Plants remains green until frost.
    In south FL (mid Dec frost), it can be a reseeding annual (because it matures seed by mid Dec; if frost is before mid Dec, it will not.
    Accumulates greatest dry matter in October and November.
    Nutritive Value:Varies depending on maturity (leaf:stem ratio) Usually medium to high crude protein; medium to high digestibility.
    Use:Grazing, hay, ground cover in orchards, green manure. Overseeding in perennial grass. Nutritive value similar or slightly higher than hairy indigo or alyceclover [CP 15- 17% (Aug), 10-12% (Sep), 10% (Nov).

    Adaptation

    Soil:Adapted to well drained, sandy, low pH and low fertility soils. Tolerant of high Al and Mn
    Not tolerant of high salinity
    Needs lower levels of Molibdenum (Mo) compared to other tropical legumes.
    pH:Adapted to a wide range from very acid to basic (4.0 to 8.3). Target is 5.5
    Rainfall:40-90 inches. Best adapted to 55 in and higher.
    Tolerant of short term waterlogging. Long term flooding will damage the plant and seedlings.
    Temperature:Sub-tropical to tropical. 73-81°F, and as low as 65°F.
    Does not tolerate frosts. Grown in central and south Florida

    Management

    Planting Date:February to March; anytime after last killing frost.
    If in area where Apr and May are dry, wait until the summer rains.
    Planting Depth:1/2 inch. Firm soil with cultipacker or roller after planting.
    Seeding Rate:10 to 20 lb/acre (use higher rate if in unfavorable conditions, or overseeding)
    Natural reseeding: Graze plants no lower than 10-12 inches in the fall to allow for natural seed production
    Plants 2-4 feet tall producer higher seed, or less seed is lost than taller (4-5 ft) plants, which are difficult to combine or mechanically harvest.
  • Inoculate seed with rhizobium bacteria type 'EL', cowpea group.
  • Seed Cost:
    Fertilization:For fertilization info click this link
    Does not need nitrogen (N) fertilizer.
    Production:Dry matter (DM) ranges from 1600 to 7000 lb/acre.
    Cut or graze to 4 or 8 inches in the first few months to stimulate branching; Grazing cycle could be: 1 week utilization, and 1 to 2 months rest period. If cutting, allow 2 to 3 months for cutting interval

    Notes

  • Can be grazed through the fall.
  • Susceptible to anthracnose.
  • Seedlings grow slower than many other plants. Keep the new sod cut or grazed until seedling reach 3-4 inches to avoid the shading by other plants, then remove cattle and allow Savanna stylo plants to develop.
  • If stockpiling, remove cattle by Aug. 1
  • All forage should be grazed off or cut down to 6-8 in before frost for managemet as perennial
  • No known toxic effect to livestock.
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