Potassium Silicate application rate

G

Guest

• Mar 21, 2019

• #1

Hi growers.

I have Potassium Silicate
Analysis w/v
Total potassium K as silicate 15.3%
Silicon Si 17.3%
SG 1.4
pH 11.3-12.3

At what rate would you add this to your nutrient solution in mls/liter?
Im in coco.

Thank you

 

troutman

Seed Whore

• Mar 21, 2019

• #2

Here's your info.

https://www.nutri-tech.com.au/factsheets/potassium-silicate.pdf

 

G

Guest

• Mar 21, 2019

• #3

troutman said:

Here's your info.

https://www.nutri-tech.com.au/factsheets/potassium-silicate.pdf

Click to expand...

Hi troutman. Thanks for the reply

Its not a 'cannabis industry' product so it doesn't really have those instructions. That information is for foliar feeds.
I used to use it at 7.5ml/10L I think but I can't remember, I think I got that off scaling it to dyno grow Silica instructions, as this particular silicate is more concentrated then others, about 3X.
The other thing is I don't think you can overdose plants with silicate so it doesnt have to be too exact.

 

troutman

Seed Whore

• Mar 21, 2019

• #4

Just go with the vegetable rates.

If it's good enough for food plants it can't be that bad.

 

G

Guest

• Mar 21, 2019

• #5

troutman said:

Just go with the vegetable rates.

If it's good enough for food plants it can't be that bad.

Click to expand...

Agreed. But i want to add it to my res, the info you linked is for foliar application rates

 

troutman

Seed Whore

• Mar 21, 2019

• #6

For now, go with that amount until you know better.

 

G

Guest

• Mar 22, 2019

• #7

Where are the science heads at

 

W

Whoscottgreen

• Mar 22, 2019

• #8

i read a thread on here somewhere that stated 60ppm of silica. with your concentration thats 3.5ml per 10 litre. its a strong alkaline so you'll need to watch your pH. humic acid is a good chelator for K Si. good foliar product as well.