How do I determine the NPK (PPMS) of Blackstrap Molasses?

It would seem easy at first right? I mean the lable gives you a percentage.

Oops, that percentage is for the "reccomended daily value" for humans, not plants.

But it does give mg's per serving.

In other words, my blackstrap molasses says it has 730 mg per serving (1 TBS) of potassium which is 20% the daily value.

It also says 115 mg Ca which is 10% daily value and 15% iron.

SOOOOOOOOO how do I translate those numbers into ppm's?

In other words how many ppms of potassium are in 1 TBS? Then I can import it into the premix calc and figure out the NPK ratio.



http://www.wholesomesweeteners.com/...de_Certified_Organic_Blackstrap_Molasses.html

mg/kg is directly equal to ppm.

mg/l is very close - 115mg would equal 115ppm and change.

cool, thanks.

your welcome

Phillthy said:

mg/l is very close - 115mg would equal 115ppm and change.

Click to expand...

Just wanna make sure i understand this correctly.

So 730 mg (1 TBS)(potassium) PER Liter would = 730 ppms per liter so in a US gallon of RO water (~4 liters) that would equal 730 mg/4 = 182.5 ppms of potassium per gallon if i add 1 TBS molasses to 1 gallon RO water?