Richters ProGrowers Info
Richters ProGrowers Info | |
Gingko
(Ginkgo biloba ) |
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Market
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Products:  (leaf);  (seed); 
Market size: 5,000 hectares (world), 600 ha (North America)
Prospects: prices stable, volume up
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Culture |
Seed density: 1 seeds/gram
Exposure: full sun
Soil: rich, well-drained, moist soil
Crop duration: 20-50+ years
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Sowing rate: 2-4kg/hectare.
Planting: seeds require stratification, 1-2 months warm, then 1-2 months cold, then sow in spring. Common nursery practice is to sow without stratification in outdoor seed beds in fall. Seedlings shaded for 2-3 years and fertilized with manure. Seedlings transplanted to permanent location when 7-8 years old. Trees kept short (2m) and spaced close (2-3m) in commercial plantations for medicinal leaf production; otherwise allowed to grow higher and spaced further for seed production. Slow growing. Leaves harvested in early fall as they begin to turn yellow; dried in sun. Fruits harvested late fall, seeds cleaned and roasted.
Field spacing: 3-5m apart (2-3m within rows for leaf production).
Yield: no data (leaf years 8-50, seed years 20-50).
Pests: few problems
Diseases: tolerates pollution.
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Sowing rate: 2-4kg/1000 plants.
Planting: stratify seed warm (1-2 months) followed by cold (1-2 months). Sow in deep plugs. Keep lightly shaded.
Seeds to finished plugs: 12 weeks to 1 year.
Plugs to saleable plants: 8 weeks (10cm pots), 2-5 years (larger plants).
Pests: whitefly
Diseases: few problems.
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– Dried Production
– Fresh Production
– Oil Production
– Potted Plant Production
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