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post #1 of 3 (permalink) Old 03-03-2014, 11:53 PM Thread Starter
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NPK confusion

Hi all, apologies to start off with because I know that somewhere in this forum my answers can be found, as I found them at one time and purchased NPK but for the life of me I cannot find the threads that I need.

I have purchased NPK to do EI dosing with but as I am consulting with several dosing calculators for mixing I have no idea how to enter the NPK because it doesn't seem to exist in the list of drop downs. What do I choose in the drop downs (all the calculators have pretty much the same dropdown lists)?

Thank you kindly

Old lady with only one tank/near Wichita, KS
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post #2 of 3 (permalink) Old 03-04-2014, 12:54 AM
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What you choose depends on what form (what chemicals) your NPKs are provided as.

Typically, nitrates are supplied from potassium nitrate (KNO3)
Phosphates come from potassium phosphate (KH2PO4)
Potassium usually comes from the above two chemicals, but in case of supplementation, people often use potassium sulfate (K2SO4).

Anthony


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post #3 of 3 (permalink) Old 03-04-2014, 01:19 AM Thread Starter
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Thank you Anthony,

I was using K2S04 but wanted to verify.

Old lady with only one tank/near Wichita, KS
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38 gal (more or less) home built. I will NOT have more than one tank!
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