N uptake

Discussion in 'Organic Lawn Care' started by DeepGreenLawn, May 7, 2009.

  1. DeepGreenLawn

    DeepGreenLawn LawnSite Silver Member
    Posts: 2,372

    Well.... don't mean to be hard headed, but as we all know, reading and studying something is all good but seeing it first hand really hammers it in.

    More of a refresher?
     
  2. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,308

    It's not my chart, just one I link to that I have seen many times throughout the years.
    Ammonium should also have a very small arrow to plant uptake.

    nitrogen_cycle_EPA.jpg
     
  3. Tim Wilson

    Tim Wilson LawnSite Senior Member
    Posts: 795

  4. Tim Wilson

    Tim Wilson LawnSite Senior Member
    Posts: 795

    oops sorry wrong thread
     
    Last edited: May 8, 2009
  5. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,082

    So composters produce ammonium... From there - nitrifying bacteria turn it into No2- or what might be called.. Nitrites.

    Next...

    They become Nitrates because of the activity of 'Nitrifying Bacteria' - known as - NO3- ...

    From there they are either - asimilated into the plant directly , as NO3- or - the NO3- dissipates into the atmosphere.

    Is that a fair assesment of the chart??!?
     
  6. growingdeeprootsorganicly

    growingdeeprootsorganicly LawnSite Senior Member
    Posts: 766

    it returns to the atmosphere as N2 a gas, i believe the O is striped off and used and in that process the n is gased off if you will from the organium
     
  7. growingdeeprootsorganicly

    growingdeeprootsorganicly LawnSite Senior Member
    Posts: 766

    possibly nitric oxide ? [NO] can gas off too? would make sence but i would think it to be small compared to the N2 being released
     
  8. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,082

    There doesn't seem to be much explanation in the chart, just that denitrifying bacteria ruin the NO3- and it gets lost to the atmosphere.
    Couldn't tell you if there is [NO] gas in the atmosphere.

    I wonder how much N2 might get fixed into NH4+ if the air was injected directly into the soil. I remember that injectors were used to inject Nitrogen Gas into the soil. The N gas was 80% by volume. :)
     
  9. terrapro

    terrapro LawnSite Bronze Member
    Posts: 1,234

    Can I put that graph on my website? I need as much visual information for my customers as possible.
     
  10. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,308

    Yes, it is public domain as the source of the image is the EPA. I would still cite the source though.
     

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