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phosphate ?

Discussion in 'CO2 Enrichment' started by ccLansman, Dec 18, 2008.

  1. ccLansman

    ccLansman Guru Class Expert

    Jan 22, 2008
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    Local Time:
    10:04 AM
    In an article on aquatic world i found this as a definition for phosphorus deficiency. However i dont understand the line on ph range dependency? What does that have to do with P? Also my fast growers have burnt looking leaves but my P is over 10ppm, what else could cause this? Light is 2-3wpg, co2 is high, drop checker always green, all other ferts are in excess, i do weekly 50% changes. I have anubis that are flowering and no old leaves that look almost black.

    Phosphorus (P)

    * Symptoms: Small leaves that may take on a reddish-purple tint. Leaf tips can look burnt and older leaves become almost black. Reduced flowers or seed production.
    * Sources: Compounds containing the words 'phosphate' or 'bone'. Also greensand.
    * Notes: Very dependent on pH range.

    also what is this:
    Witches brooms sometimes form
    Says its due to boron being low, i know my anubis have large roots shooting out with smaller roots jutting out in all directions from them.
  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Jan 23, 2005
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    Local Time:
    10:04 AM
    This info is for terrestrial plants.

    Tom Barr

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