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Different forms of fertilizers

Discussion in 'Advanced Strategies and Fertilization' started by Mooner, Aug 10, 2008.

  1. Mooner

    Mooner Lifetime Charter Member
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    Locally available and cheap form of KNO3. It is pelleted with a NPK of 13.75-0-46.Will need to weigh it out to match to the powdered form. Any reason this wouldn't work? Is something used to keep it in pellet form? Any ideas?

    Thanks
     
  2. Gerryd

    Gerryd Plant Guru Team
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    Can you post the brand name so we can look it up?

    I would say there has to be something like clay to keep it in pellet form, unless it is simply machine pressure that squeezes them together?

    I missed the one about how to make these on Discovery Ultimate Factory lol
     
  3. ccLansman

    ccLansman Guru Class Expert

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    i would be careful of any forms of nitrate that comes from ammonium. should be on the back label as to how they derive the kno3
     
  4. Mooner

    Mooner Lifetime Charter Member
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    Brand is K-power. The source of N is nitrate and is stated on the bag. From what I've read the prill process is the heating of the chemical to its melting point and cooled as it passes through a prilling machine. Could not find any mention of a coating.
     
  5. ccLansman

    ccLansman Guru Class Expert

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    does it seem like you could use the pellets for gravel ferts? or does it dissolve quickly in water?
     
  6. Mooner

    Mooner Lifetime Charter Member
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    Well this may not very scientific but here is what I did.

    30ml of tap water which I added 1/8 level tsp in a glass and stirred with a plastic spoon like stirring your coffee.

    100% dissolution in 75 seconds. Pretty fast, don't think it will last for long in the substrate.

    The cost is $11 for 25kg. (55 lbs) thats .20 cents a pound! I will put it in to use and notify of any issues.
     
  7. VaughnH

    VaughnH Lifetime Charter Member
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    My guess is that it is in the pellet form for better distribution by farm fertilizing machines. I don't see why it would be a problem if used in an aquarium.
     
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