Wood Ash & Wood Powder as a fertilizer?

Hi

Can we use Wood Ash & Wood Powder as a bonsai fertilizer? Which is best?

Hello,

Wood ash contains Ca, P, Mg, K and other salts.

It's usually used in the spring or in autumn, but not on plants that prefer an acidic soil because of the Ca it contains.

In any event, the amounts of the "fertilizer" elements will be very, very small. If you put too much ash on your soil, of course, it will start to clog up the pores of the soil.

What about Wood Powder as a bonsai fertilizer?

Same advice :
In any event, the amounts of the "fertilizer" elements will be very, very small. If you put too much ash on your soil, of course, it will start to clog up the pores of the soil.
prefer organics fertilizers or chimicals fertilizers