custom NPK numbers question

[LndRcLvr]

Anyone good with numbers?

I’m trying to create a roughly 1:1:2 NPK ratio feed.


I have GT Formulex liquid NPK RATIO 2 - 0.9 - 3.3

MPK (salt) NPK RATIO 0 - 52 - 34


Let’s say I want to make up 5lt of water with a 1-2-2 NPK ratio using the above salts.

I’m assuming in this calculation 1ml = 1g

If the recommended dose of formulex is 5ml per litre, then 25ml total is required

Therefore 25ml Formulex contains NPK weight 50mg - 22.5mg - 82.5mg

I then add 50mg (0.05g) of MPK to the 25ml of Formulex

0.05g of MPK contains NPK weight 0mg - 26mg - 17mg

So mixing 25ml GT Formulex with 50mg MPK creates a total NPK weight:

50mg - 48.5mg - 99mg

Which equates roughly to an NPK RATIO of 1 - 1 - 2

Would those calculations be correct?

And if so, i could make a stock solution of GT Formulex 500ml and 1g of MPK mixed together, and diluted to the EC that i require?

 

[LndRcLvr]

Anyone good with numbers?

I’m trying to create a roughly 1:1:2 NPK ratio feed.


I have GT Formulex liquid NPK RATIO 2 - 0.9 - 3.3

MPK (salt) NPK RATIO 0 - 52 - 34


Let’s say I want to make up 5lt of water with a 1-2-2 NPK ratio using the above salts.

I’m assuming in this calculation 1ml = 1g

If the recommended dose of formulex is 5ml per litre, then 25ml total is required

Therefore 25ml Formulex contains NPK weight 50mg - 22.5mg - 82.5mg

I then add 50mg (0.05g) of MPK to the 25ml of Formulex

0.05g of MPK contains NPK weight 0mg - 26mg - 17mg

So mixing 25ml GT Formulex with 50mg MPK creates a total NPK weight:

50mg - 48.5mg - 99mg

Which equates roughly to an NPK RATIO of 1 - 1 - 2

Would those calculations be correct?

And if so, i could make a stock solution of GT Formulex 500ml and 1g of MPK mixed together, and diluted to the EC that i require?

ignore my last post, that was all completely wrong

i have gone at it with the elemental numbers from the sticky at the top of this sub forum and have used the knowledge and tools to develop a feeding plan using the chemicals i have to hand, any thoughts welcome

now i think ive got my head arounf this shit i can finally go to bed. it was stressin me out !

 

[weedemart]

drop the mkp and epsom,cut in half potassium sillicate and double formulex.

it will give you better result.

 

[LndRcLvr]

drop the mkp and epsom,cut in half potassium sillicate and double formulex.

it will give you better result.

Thanks for the suggestion does that apply to all stages of the grow ?

So - 10ml per litre in seedling stage? 20ml per litre in Veg and Bloom?

i will knock up an amended schedule to compare if thats correct?

thanks

 

[weedemart]

Yes try and compare

 

[LndRcLvr]

drop the mkp and epsom,cut in half potassium sillicate and double formulex.

it will give you better result.

here you go

It looks very low on Phosphorus?

what do you think?

 

[weedemart]

20ppm P is fine.

EC looks high for only 110 N