PH buffering Coco


#1

I did abit of a search but didn’t get anything so figgered I will post and ask
How can I stabilize or buffer PH in Coco medium it seems what ever I do it goes back to 7.6
Its just cheap stuff and I am not that worried about it because I was told to not use it so I got it to see why (I like to tinker) and yes its really bad with very high salt. (It kills seeds)
I fixed the salt with hot water but I cant get the PH stable any idea’s would be great and I will try them and post if it worked.
I have run heaps of PH’ed water thru just drops back to 7.6 or higher


#2

Crush dolilite lime and add it to top layer of soil, it can drop ph, and being grinded to powder can work faster than usual


#3

How much would you put with say 5gal of medium ?
Then I would just water it thru ?
I did a bit of a search but never got amounts to use per gal
Thx btw


#4

“How much would you put with say 5gal of medium ?
Then I would just water it thru ?”

I’d say try 1 full tsp to start, you definatly don’t wanna over due it. My honest opinion crush or grind it in a piece of paper and sprinkle over top of soil, then yes youll dump water over it and it will wash it through the soil, and no problem my pleasure


#5

OK thanks will give that ago my area is mostly clay and this will end up in my garden beds but its good to know how to do this


#6

Try and mix a little bit of perilite if you have any on the side it will help the plant drink water more efficiently being in a clay soil. I’ve seen some great root balls with clay soil if done right


#7

yep I had already split about 50L and added 5L of Perlite to each 25L batch things like slugs and snails don’t like it and it drains well unlike clay. I mixed in the lime re flushed with PH’d water with alittle H202 the run off was 6.3 ish so I let it drain overnight and added a batch each to a garden bed now I have to bribe my oldest to turn it for me.
When I lived near the beach I hated sandy soil but now I have clay I want my sand back.


#8

Hope this helps, I add to a plastic cup fits in the DWC, with clay balls on the bottom soaked in the pH desired, add Coco fresh, and fluffy, to the top w/ Jiffy and the plant about two weeks in, eliminates the salt build up even after transplanting to the drip irrigation, or the ebb and flow table…