pre measuring NPK

charlie

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Oct 25, 2006
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I would like to pre measure my 3 x weekly doses of NPK , is there any detriment to combining the three salts in containers(pre mixing each dose dry& storing it in a container).
Regards
 

Tom Barr

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Jan 23, 2005
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No that's fine, the only bad mix are Fe and PO4 chemicals.

Regards,
Tom Barr
 

VaughnH

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Jan 24, 2005
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If you mean premix the dry salts and store them dry, to be dosed dry, that can be a problem if you aren't able to mix them well. It would be about 4 parts KNO3 and 1 part KH2PO4, but unless well mixed, and unless the particle sizes were about the same, the mixture might not be homogeneous.
 

charlie

Guru Class Expert
Oct 25, 2006
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To clarify, i want to mix my weeks dose for each of the 3 days ( Mon, Wed. Fri - 1/2 tsp. KNO3+3/16 tsp. KH2PO4+ 1/4 tsp. K2SO4 combined in 1 container,so i would have 3 containers with the NPK for each of the 3 days) this would make it easier fo just dose 1 container in the morning before i leave for work instead of measuring each salt .
Regards
 

Tom Barr

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Jan 23, 2005
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That will work perfect.

If you ever leave for a vacation and plan on having someone stop by the feed the fish, set that up for the food and for the ferts.

Easy.

Regards,
Tom Barr