Harvesting Advantages of hand harvest6/11/2015 1 1 Harvesting 2 Advantages of hand harvest •...
Transcript of Harvesting Advantages of hand harvest6/11/2015 1 1 Harvesting 2 Advantages of hand harvest •...
6/11/2015
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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
Picker
Berry Damage Score
None
50% of surface
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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
Thompson, Jim "Harvest Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Davis
6/11/2015
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Machine Harvested Fresh Market Crops
• Underground vegetables:– Potatoes, sweet potato, garlic, bulb onions,
carrots, turnip, rutabaga, beets, etc.
• Vegetables:– Fresh cut spinach, lettuces, etc.
– Some cabbage, sweet corn, green beans
• Tree nuts and peanuts
• Cranberries7
Machine Harvesters for Processed Fruits & Vegetables• Tree crops
– Sour cherries, prunes
– Some peaches, olives, juice oranges
• Vine & bush crops– Blueberries, raspberries, raisin & wine
grapes, cranberries
• Vegetable crops– Peas, beans, corn, pickling cucumbers,
tomatoes, peppers, celery, sweet corn, cabbage
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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
Night Harvest Strawberries
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GK Machine & Musco Lighting
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Tomato - shed pack
Thompson, Jim "Harvest Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Davis
6/11/2015
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Celery - field pack
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Lettuce - materials handling
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Romaine Lettuce Baby Leaf Harvester
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Band saw
Romaine Hearts
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Carrot Harvester
Thompson, Jim "Harvest Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Davis
6/11/2015
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Sweet Potatoes
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Sweet Potatoes
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Onions - field curing
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Onions - field packing
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Tree Fruit
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Harvest aid - ca 1900
Worker position
Detachment
Fruit handling
Thompson, Jim "Harvest Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Davis
6/11/2015
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Pears
1960worker
positioner& fruit
handlingsystem
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Pears
2005worker
positioner& fruit
handling
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Citrus - worker positioner
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Shake-catch harvest
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Catch frame
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ShakerBlight
Thompson, Jim "Harvest Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Davis
6/11/2015
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USDA Apple Harvester
• High density trellised orchard
• Use abscission chemical before harvest32
Vine & Small Tree Harvesters
Olives
Grapes
Tree Nuts
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Canopy Management
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1980’s Robotic harvest Vision Robotics2010s
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Scout
Picker
Thompson, Jim "Harvest Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Davis
6/11/2015
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Agrobot 2014
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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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Hand pack
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Hand Pack Station
Thompson, Jim "Harvest Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Davis