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kg/acre to mg/kg conversion

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  • Amit bajpayee
    replied
    Originally posted by JohnS View Post
    Any conversion is very approximate and based on assumptions. The first assumption is that the fertilizer is active in the top foot of soil, so acre is 43560 ft² x 1 ft = 43560 ft³. The second assumption is that topsoil is around 100 lb/ft³, which varies considerable with soil composition and moisture content. Thus an application of 1 kg/acre is roughly 1 kg fertilizer to 2 million kilograms of soil. In smaller quantities this would reduce to 0.5 mg/kg. This is probably only good to one significant figure (closer to 0.5 than to 0.4 or 0.6).

    Another way to approach this might be mass/volume and 1 kg/acre would roughly equate to 0.8 mg/L of soil.
    Hi John, very well explained, how we can convert the kg/acre to mg/kg conversion.
    Thanks for the information.

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  • JohnS
    replied
    Any conversion is very approximate and based on assumptions. The first assumption is that the fertilizer is active in the top foot of soil, so acre is 43560 ft² x 1 ft = 43560 ft³. The second assumption is that topsoil is around 100 lb/ft³, which varies considerable with soil composition and moisture content. Thus an application of 1 kg/acre is roughly 1 kg fertilizer to 2 million kilograms of soil. In smaller quantities this would reduce to 0.5 mg/kg. This is probably only good to one significant figure (closer to 0.5 than to 0.4 or 0.6).

    Another way to approach this might be mass/volume and 1 kg/acre would roughly equate to 0.8 mg/L of soil.

    Leave a comment:


  • Madesh
    replied
    Concert kg/acre to mg/kg

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  • Guest
    Guest replied
    Re: kg/acre to mg/kg conversion

    Originally posted by Unregistered View Post
    a standard weight for an acre of soil?
    http://cropsoil.psu.edu/turf/extensi...e-furrow-slice

    Leave a comment:


  • Unregistered
    Guest started a topic kg/acre to mg/kg conversion

    kg/acre to mg/kg conversion

    How do I convert the amount of N,P and K in soil from kg/acre to mg/kg? Is there a standard weight for an acre of soil? I would really appreciate it if anyone can maybe help!!
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