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I Try To Understand Thrive Ferts Numbers

Discussion in 'Rotala Butterfly Support & Feedback Forum' started by Pierre-Luc Boily, Jul 28, 2018.

  1. Pierre-Luc Boily

    Pierre-Luc Boily New Member

    Joined:
    Jul 4, 2018
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    Local Time:
    5:34 AM
    Hello!

    I already have Tropica fertiliser. The numbers given by the calculator are easy to understand. Click here to see composition of the tropica fertz. The maths are easy to understand. For iron, the composition says 0,069%.

    So, for a dosage of 1ml for 10L, we will have a composition 0,069 ppm. Same apply for all nutriment.


    Now, it looks like the maths are not the same for thrive. From Thrive web page, it says that the fertiliser all in one contain the following :

    For Advanced Users:
    1 pump(2ml) per 10g will add ~7ppm NO3, 1.3ppm PO4, 5ppm K, and 0.25ppm Fe

    Guaranteed Analysis
    Total Nitrogen(N)...................2.56%
    2.56% Water Soluble Nitrogen(N)
    Available Phosphate(P2O5).......1.58%
    Soluble Potash(K2O)..................9.74%
    Magnesium(Mg)...........................0.32%
    0.32% Water Soluble Magnesium(Mg)

    Calcium(Ca)..................................0.02%
    Sulfur(S).......................................0.54%
    0.54% Combined Sulfur(S)
    Boron(B)......................................0.008%
    Copper(Cu)..................................0.0002%
    0.0002% Water Soluble Copper(Cu)
    Iron(Fe)........................................0.42%
    0.42% Water Soluble Iron(Fe)
    Manganese(Mn)..........................0.168%
    0.168% Water Soluble Manganese(Mn)
    Molybdenum(Mo)........................0.0006%
    Zinc(Zn).......................................0.0038%
    0.0038% Water Soluble Zinc(Zn)



    In the calculator, if I enter 2ml for 10G, it gives me 0,2483 ppm for iron. But the percentage above says iron is 0,42%. Can someone explain what is the calculation to have 0,2483 ppm for 0,42%?

    Oh, one last thing, Thrive is composed of 0,54 of sulfur, but the calculator does not have the sulfur result.

    Thx a lot

    tropica.png
     
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