hadn't thought about it(I write program using speech synthesizer, and auto reload web page on timer, and run script to check certain x,y location on screen for change, so when alert comes top right, I have computer scream at me through speakers..lol.. in case you wonder, how i always here after you post. LOL)
Epsom is pure salt. Do you want salt in your soil. What other ingredients that ever are added to soil resemble salt. Think a
You try spreading some fine dolomite powder on top the soil and water it in? and every watering thereafter will slowly raise the concentration down below and start to help maybe? (I don't know oyster shell as much as dolomite, so maybe oyster also, i know the dolomite with a ph sitting at 5.8 in the medium will not do anything bad or overdose because you already have some in there. Maybe will make higher pH uptake nutrients be available almost right away as supplement this way until its built up enough for no more top dressing it. Cations will exchange as dolomite does its thing?)
Johnei is totally spot on with both of these replys and I agree 420%.Just remember dolomite reacts when it touches anything below pH 7 and starts changing the chemistry in it's emediate facinity, raising pH nuetralizing acids. Just a thought, bro.
$75Johnei is totally spot on with both of these replys and I agree 420%.
Pretty much liquid anything isn't going to do squat for pH except very temporarily. The soil will just buffer it to the soils pH. That's why pHing irrigation water is kinda a useless excercise. The soils pH counts for everything and any liquid inputs count little. I'm sure there is an exception to the rule, but I can't think of one.
If you're constantly getting a 5.8 reading, a top dress of lime might really be called for.
Before all that, what kind of probe did you pick up? A real deal pH meter or one of those cheapies sold in the garden shop? The cheapies are less than useless because they give such inaccurate readings. Worse than not knowing is trying to correct a incorrect pH. The Bluelab probe is decent and lives in the ~$200 neighborhood to give you an example.
can't go high, it can't go higher than what it is, what it's constituants are made of. it will only react in the presence of acid, therefore when things are acidic will bring up to around or below nuetral, when things are nuetral, it will do absolutely nothing. it cant go higher out of pH plant uptake range due to the dolomite lime.would a temp rise in ph be a good thing
as the silicate becomes depleted the existing lime would ve in full effect?
my concern with thte lime is I don't want to end up adding too much and end up high down the road
Just for S & G why don't you test the pH of the dolo? Like, whatever the pH is, it won't raise it beyond that point. Doing the same for the oyster shell might be informative also.$75
but I took reafings from the fresh bagg FFOF as a base
6.8 every time