I know that theoretically the use of wood ash to supply potassium is not suggested due to the alkalinity and the tendency to rise soil PH.
I would like to know if any of you has ever tried to use wood ash and what were the results you obtained.

Thanks!

Probably not a good Idea to keep Citrus healthy unless your starting soil is too acidic.

Assuming you are starting with a neutral or slightly acidic PH soil, you now are introducing a PH raising agent you will have to compensate for it with other PH lowering fertilizers, this balancing act can be dangerous and unnecessary.

I thing the better question is why would you use it? Yes, it has P&K but, there are plenty of cheap easy alternatives that will not elevate PH.

I think it is good in citrus in ground.
All plants like the wood ash and it is used up very soon.

Burning down a wood and plant then nutrial plants on it is the original agriculture and still used by some indigene peoples.

I am just a little worried because of the high alcalinity and salinity, being citruses very sensitive to those 2 factors

In my experience all plants love it and for the extreme solubility it is used up very soon.

Only mineral fertilizer make troubles with salinity and alcalinity.

> Only mineral fertilizer make troubles with salinity and alcalinity.

We have already gone over this.

Ivannn, wood ash is added to soils to raise a low pH, and to add small amounts of calcium, potassium, phosphorus, magnesium and sulfur. The exact amounts of these minerals is variable and hard to determine. Ash is used mainly to move an acid sol toward neutral because of its alkalizing effect. Wood ash is about two-thirds as effective as ground limestone in raising a low (acid) pH. If you live in arid areas where high pH soil (alkaline soil) is a common problem or have a soil pH above 7, you should avoid using ash altogether. If you have an acid soil below 7, then it might be worth while. Wood ash is commonly added at a rate of 1 pound (.45 kg) per 10 square feet (.9 sq. m.) of soil. Try to avoid using wood ash to adjust the pH more than once every 3 years, as it can cause an excess potassium level in the soil, which can cause other imbalances. Wood ash spread around the base of plants can also keep slugs at bay. Coal ash is NOT good for soil or plants and should never be added to soil. The best to you and your plants. - Millet

Thanks Millet for your detailed answer, as usual
I think I'll keep on putting wood ash in the compost pile instead of adding it on the surface of the soil of my potted plants