PHILIP MORRIS USA GROWER REP INSERVICE TRAINING

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PHILIP MORRIS USAGROWER REP IN-SERVICE TRAINING

• June 16, 2009
• PRINCETON, KY

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FLUE-CURED TOBACCO HARVESTING HOUSING

• J. MICHAEL MOORE, Ph.D
• University of Georgia
• http//www.georgiatobacco.com

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Harvest Mature, Ripe Tobacco

• Allow plants to MATURE
• WAIT for the plants to RIPEN
• Harvest multiple times by STALK POSITION

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Flue-cured Stalk Positions (crop throw)
Smoking leaf-H Leaf - B Cutters-C Lugs -
X Primings-P
15-20 45-55 8-12 15-20 0-6
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Flue-cured Stalk Positions (processing volume)
Smoking leaf-H Leaf - B Cutters-C Lugs -
X Primings-P
Processing Volume
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Flue-cured Stalk Positions (chemistry)
Chemistry
Smoking leaf-H Leaf - B Cutters-C Lugs -
X Primings-P
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The Tobacco Plant
Leaf (B) 3-3.5 nicotine up to 15 sugars
Smoking Leaf (H) 3 nicotine 12-20 sugars
Cutters (C) 2.5 nicotine 12-22 sugars
Lugs (X) 2.5 nicotine 12-20 sugars
Primings (P) 1.5-2 nicotine 5-10 sugars
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Taylor Two Ended Baler
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Proper Curing

• Load boxes, racks barns uniformly, close air
  leaks
• Follow a proven curing schedule
• Use a web-bulb thermometer to minimize wasted
  fuel from excessive fresh air intake, ESPECIALLY
  WITH NEW HEATEXCHANGERS

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BARN LOADING

• 1) Fit racks snugly together
• 2) Block out space at doors
• 3) Run fan while loading hot tobacco
• 4) Dry surface of wet tobacco

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ASSURE AN AIR SEAL ROUND EACH RACK OR BOX
A ½ inch crack between boxes or racks reduces
ventilation efficiency by 50. Half of the air
goes through the rack or box and half goes
through the crack.
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Sealing Flap
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CONTAINER LOADING

• 1) Uniform density of pack
• 2) Avoid excessive fall out
• 3) Bottom tobacco lays close

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Normal, Ripe Tobacco Curing Schedule
165
o
F)
o

Leaf Drying
Temperature (
135
o
Yellowing
Stem Drying
120
o
Dry-Bulb
110
o
105
o
100
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Wet-Bulb
Time (hrs)
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Barn Rothigh TSNAs
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Barn Rot
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THANK YOU !!!