sulphate of potash

[gullivar33]

i have just been putting some sulphate of potash on some of my trees , i was wondering if i put some in my water can and fill it with water how long will it take to eventually disperse, i thought by doing it this way it would get to the roots quicker . thank you

[Jungle Jane]

I put it on the soil surrounding the tree,cover it over with soil,then water a good amount so it goes deep,I think that's as good a way as any,the powder would be amongst the roots? I think there wouldn't be much time difference in disperse. I never put it on the tree?

[starloc]

Sulfate of potash is water soluble, just mix it into the water and it will dissolve, will leave some residue that doesnt dissolve as the product is not pure so has things like silica in there as well, just ignore any sediment as the important bit will have dissolved its something like 95g of it that will dissolve maximum per litre of water , doesnt mean you want that much in there though!

I have used it like this, but usually just chuck it on the floor around the trees and then if it doesnt rain, give it a bit of water to stop it blowing away, will get to roots faster if dissolved first though

[janzbro]

Am I right in thinking wood ash from the fire and potash are the same thing

[Two_Sheds]

wood ash is a natural form of potash, yes, but isn't ideal, burning being a pollution. Green wastes, composts and other waste materials are alternative potash sources.

SOP is not a naturally occurring mineral and has to be manufactured chemically.

More info in the leaflet below:
http://www.pda.org.uk/leaflets/pdf/PDA-lf23.pdf