Richters ProGrowers Info
Richters ProGrowers Info | |
Licorice
(Glycyrrhiza spp. ) |
|
Market
|
Products:  (root); 
Market size: 45,000 hectares (world), 480 ha (North America)
Prospects: prices down, volume up
|
|
Culture |
Seed density: 400-600 seeds/gram
Exposure: full sun
Soil: deep, rich, moist, sandy, slightly alkaline, pH 7.3-7.8
Crop duration: 3-5 years
|
|
|
Sowing rate: 3-4 kg/ha (direct), 5-10g/1000 plants (indirect).
Planting: soak seeds 2-3 hours in 30°C water or scarify before planting to weaken hard seed coat. Sow direct in spring or in deep plugs 12-16 weeks before field planting.
Field spacing: 70-90cm between rows x 45-90cm within rows.
Yield: G. glabra dry root 10-20t/ha (year 3-5).
Pests: few problems
Diseases: uromyces rust, cercospora blight.
Buyers want: minimum 4% glycyrrhizinic acid, minimum 20% water soluble extractive.
|
|
|
Sowing rate: 5-10g/1000plants.
Planting: soak seed in warm water (30°C) for 2-3 hours or scarify before sowing. Sow in flats or deep plugs 22-26 weeks before sale. Highly susceptible to damping-off; preventative application of damping-off control recommended.
Seeds to finished plugs: 12-16 weeks.
Plugs to saleable plants: 10 weeks.
Pests: spider mite
Diseases: damping-off.
|
|
|
|
– Dried Production
– Fresh Production
– Oil Production
– Potted Plant Production
Back to ProGrower Herb List
|
|
