How to dissolve salicylic acid into a solution with humic acid [closed]








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I'm not a chemist but I am trying to make a product to be used as a foliar spray on turfgrass for my own use. The product I'm trying to make is:


* 12% Humic acid ($\mathrm{pH =}$ 3.5-4.0)
* 2% Fulvic acid ($\mathrm{pH =}$ 9.6)
* 6% Kelp extract
* 0.5% Salicylic acid
* 79.5% Water (local sourced water $\mathrm{pH }$ is 6.8-7.5)


I'd like to make this in $\pu{19L ( 5 gal.)}$ batches.


The humic, fulvic acids and the kelp extract are all soluble in the solution already, so that's the easy part. What I'm looking for is how to dissolve the salicylic acid so that it can be combined with the other ingredients.


The advice I've been given for dissolving the salicylic acid is to first dissolve in ethanol. Add $\ce{KOH}$ to water until I get a $\mathrm{pH}$ of 12, then add the dissolved salicylic acid to the water. 


What I'd like to know is:


1. Is this the right process?
2. What quantities of salicylic acid/ethanol/$\ce{KOH}$/water should I be using?
3. Will adding this mixture to my mixture of humic/fulvic/kelp have any negative effect on any of the ingredients?
4. Any safety concerns beyond the exothermic reaction of $\ce{KOH}$?


