How I message the amount of KNO3

[bttay]

Maybe some of you have tried this method long time ago. But I just like to share what I have found.

I bought a kg of KNO3 from Dr. Mallick then realized that I don't have a micro weighing machine to weigh the fertilizer. This is the method I came out with:

I used a stirrer (a very small spoon that you use to stir coffee at McDonald) to scoop a bit of the KNO3 and mix it into 1 litre of water (use any 1 litre container). I then tested the water for NO3 content, the result I get is around 2 to 3 mg/l. So, I added the required amount of NO3 according to my tank volume. The test result of my tank water agreed with my estimation.

So my theory is that: Adding a stirrer full of KNO3 into 1 litre of water, you get about 2 to 3mg/l. To achieve 5mg/l, add two stirrers of NO3. I think this method, though not very accurate, is very convenient. Afterall, estimated water volume in the tank is also not accurate anyway. Just make sure that after the first few times of adding, double check with test kit to get the right "feel" of it.

I hope the above is helpful.

[theodore]

Interesting method but most of us just prepare our solution based on Chuck's fertilizer calculator. You can dose other stuff like Ca(NO3)2.4H20 once you figure out how the calculations work.

[bttay]

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On 8/9/2003 9:03:19 AM

Interesting method but most of us just prepare our solution based on Chuck's fertilizer calculator. You can dose other stuff like Ca(NO3)2.4H20 once you figure out how the calculations work.
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Thanks Theo2001 for the useful link.

[Perrush]

this is my approach, in a formula :

For NO3- increasements by KNO3 solution :

The number of ml KNO3-solution of A gr/L needed for a B ppm NO3- increasement on C liters water =

(1,63 * B * C) / A

with :
A : the number of grams KNO3 in ONE liter of the used KNO3 solution
B : the wanted ppm increasement
C : the amount of Liters being treated

--
such a formule could be made for all products