Fertilizing and Watering
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Subject: Lbs per acre vs. PPm
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From
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Location
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Message
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Date Posted
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KathyS |
West Paris Me.
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Does anyone have to calculation to change lbs per acre to ppm? thanks
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2/4/2013 11:08:09 AM
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Weed Nerd |
Foley, Minnesota
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Divide lbs/acre by 2. 300 lbs/acre= 150 ppm
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2/4/2013 12:07:12 PM
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don young |
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im not so sure that old divide by 2 is always as easy as that theres alot of soil sites that claim average plow depth per acre of 6-8 inch deep weighs 2 million pounds and they make calculations from that in pounds per acre
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2/4/2013 1:49:59 PM
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HankH |
Partlow,Va
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My soil sample was done at Va Tech. per Va Tech Soil Testing Lab "To convert from ppm(wt.basis) to lbs/acre the equation is: ppm in soil X 2 = lbs/acre where weight of an acre furrow slice(6 2/3" depth) is assumed to be 2 million pounds."
Unless I'm wrong it seems that each farmer/grower needs to adjust for whether their farm has heavier or lighter soil.
Like Don said check your soil report/lab individually and also know your soil type.
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2/4/2013 10:53:48 PM
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KathyS |
West Paris Me.
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thanks guys
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2/4/2013 11:54:36 PM
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TruckTech1471 |
South Bloomfield, Ohio
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Another formula: PPM x 2.72 = lbs. per acre-foot
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2/5/2013 5:33:27 AM
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Total Posts: 6 |
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