harvesting - ucanrucce.ucdavis.edu/files/datastore/234-1342.pdf · harvesting 2 advantages of hand...
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Harvesting
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Advantages of hand harvest
• Accurate maturity and grade selection.• Less damage to product.• Allows multiple harvest.• Easy to increase harvest rate - just hire
more pickers.
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Maturity selection
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Less product damage?
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Strawberry picker damage
0
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A B C D
Picker
Berry Damage Score
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Machine harvest advantages
• Less costly, but high capital costs• 24 hr harvest possible• Less labor management problems• Higher wages for workers• Stabilizes work force size
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Field vs. shed packing
Pick Pack Transport Cool/store
Pick PackTransport Cool/storeCool/store
Field Pack
Shed Pack
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Strawberry - field pack
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Tomato - shed pack
4
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Celery - field pack
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Lettuce - field pack
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Lettuce - materials handling
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Lettuce - processing
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Lettuce - processing
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Carrot Harvester
6
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Sweetpotatoes
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Onions - field curing
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Onions - field packing
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Treefruit
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Harvest aids - ca 1900
Worker position
Detachment
Fruit handling
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Pears
1960worker
positioner& fruit
handling
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Pears
2005worker
positioner& fruit
handling
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Citrus - worker positioner
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Shake-catchharvest
9
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Catchframe
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ShakerBlight
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Bushberry harvester
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Canopy management
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Robotic harvest
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Field vs. Shed packing
Pick Pack Transport Cool/store
Pick PackTransport Cool/storeCool/store
Field Pack
Shed Pack
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Transport to Packing Shed
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Hand Packing
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Handpack
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Hand Pack Station
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Machine Grading and Packing