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  • 4 Post By raybark
  • 1 Post By Orquiadicto
  • 1 Post By zainal abidin
  • 1 Post By ksriramkumar
  • 2 Post By raybark

Fertilizer ppm N from Any Fertilizer Formula

This is a discussion on Fertilizer ppm N from Any Fertilizer Formula within the General Orchid Culture forums, part of the Orchid Culture category; Folks that have been around for a while know of my long "campaign" to get ...

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  1. #1
    raybark's Avatar
    raybark is offline Senior Member
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    Default Fertilizer ppm N from Any Fertilizer Formula

    Folks that have been around for a while know of my long "campaign" to get folks to manage their fertilizing regimens through the use of parts-per-million nitrogen (ppm N), and my disdain for meaningless recommendations like "1/4- to 1/2 the recommended amount on the label". The former, when coupled with the frequency of application, allows you to know what you're doing and truly control it. The latter is an undefined shot in the dark, and really offers no control, while pretty much helping the fertilizer manufacturers (who don't know diddley about orchids) to sell more fertilizer!

    Manufacturers that cater to professionals routinely publish charts that give the mass of that formula needed for specified ppm N levels. When I sold fertilizers, I had those charts available with the specific product listings, but most producers and vendors of consumer brands either don't do that, or publish misleading info on their labels.

    Because of that, I just built a Fertilizer Mixing Calculator Using Nitrogen Concentration that will do it for you, no matter what the formula, whether you're mixing it up gallon-by-gallon (or liter-by-liter), or will be making concentrates.

  2. #2
    Orquiadicto's Avatar
    Orquiadicto is offline Senior Member
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    Thank you Ray. Very useful.

  3. #3
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    JDT
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    That should help everyone figure out how much to use!

  4. #4
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    Zainal Abidin Bin Othman
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    Thanks Ray I concur with the above... interesting.

  5. #5
    ksriramkumar is offline Senior Member
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    Thank you Ray. Cant agree more with you

  6. #6
    raybark's Avatar
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    Thanks, all.

    It still leaves two important questions open to the individual: "How often shall I feed?" and "At what concentration?". The calculator just helps you mix it correctly.

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