SBJ

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Optimising Production of Processing Potatoes
2009 Australian Vegetable Industry Conference -
Growing a Healthy Australia
Steven B. Johnson, Ph.D. University of
Maine Cooperative Extension
SBJ UMCE
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SBJ UMCE
after Patterson, Stark, Hopkins, and Bohl. 2009.
The Spudvine
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Yield 50 ton/ha Return 140/ton
800/ton
1600/ton
SBJ UMCE
after Patterson, Stark, Hopkins, and Bohl. 2009.
The Spudvine
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For every 200/ton increase in fertilizer
cost projected optimum N rate drops about 2 kg/ha.
SBJ UMCE
after Sexton, University of Maine
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Base Saturation in Soil
SBJ UMCE
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Russet Burbank uptake (yield of 40 t/ha estimated)
Element rate per day
kg/ha N 3.1 P 0.3 K 4.
1 B 0.002 Zn 0.006
SBJ UMCE
Data from Greg Porter, University of Maine
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Atlantic
2000
2002
2001
SBJ UMCE
Data from Greg Porter, University of Maine
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Specific Gravity ResponseR. Burbank
1 point per 25 kg of K per hectare
SBJ UMCE
Data from Greg Porter, University of Maine
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Get good seed Handle it well Encourage quick
emergence
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Physiological age of seed
Young Seed
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Physiological age of seed
Middle Aged Seed
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Physiological age of seed
Old Seed
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Physiological age of seed
Potato No Top
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Fertilizer Placement
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Fertilizer Placement
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Planters should be operated at less than 6
km per hour.
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Planter variability
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Guess Rows
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Cultivation
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PesticideScheduling
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Timing Rate Coverage
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Mechanical
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Mechanical
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Mechanical
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Soil Water (Orton) 30 cm
HU change per ET -.056HU Reading 4.76
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Soil Water (Pendarves) 30 cm
HU change per ET .018HU Reading 0.63
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Russet Burbank Yield Accumulation
               



0.75 tonnes per day per hectare
SBJ UMCE
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Bruise damage
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Optimising Production of Processing Potatoes
2009 Australian Vegetable Industry Conference -
Growing a Healthy Australia
Steven B. Johnson, Ph.D. University of
Maine Cooperative Extension
SBJ UMCE
30
SBJ UMCE