How can i add dol. Lime to my soul when I already have the plants in the soil.
I add 1-2 tablespoons per gallon of potting medium. I try for 1.5 tbsp, but it's not critical. I've heard of people doing 3. Most do 1 tbsp. You thoroughly mix it into the potting medium before growing.
In your case you can sprinkle 1/2 teaspoon on the surface, use a fork to cultivate the top 1/4 inch of soil, and let it work its way into the soil as you water.
You want powdered dolomite, not granules. Granulated might be ok when premixing with your medium. But, powdered will wash into the soil better than granules. Sometimes it's hard to tell if its powdered or granules. Grow More distributes a dolomite lime that is powdered (I haven't used it, but I've read it's powdered. Local hydro store said it is. Google for it and you'll find lots of hits.).
You also need to be careful about which lime you buy. Some aren't dolomite. I could never find a good description of what makes dolomite what it is (compared to ordinary lime). I look at the guaranteed analysis of 1-2 dolomite limes and compare them to whatever I'm looking at. For example,
High Yield Agricultural Limestone is dolomite (but, it's a bit sandy texture, not as powdered as you might need to apply to the top of the soil). I would compare that to Grow More's anlysis to see a general pattern and compare that to any other lime product I find. You want pretty much the same numbers.
I have ph up and down. If I start keeping the water between 6.5 Will that regulate it out our do I need to flush.
I don't think you need to flush. I think that would be used if you gave too much nutrients. You just want the water and soil ph to be close to each other.
- - - Updated - - -
How can i add dol. Lime to my soul when I already have the plants in the soil.
I add 1-2 tablespoons per gallon of potting medium. I try for 1.5 tbsp, but it's not critical. I've heard of people doing 3. Most do 1 tbsp. You thoroughly mix it into the potting medium before growing.
In your case you can sprinkle 1/2 teaspoon on the surface, use a fork to cultivate the top 1/4 inch of soil, and let it work its way into the soil as you water.
You want powdered dolomite, not granules. Granulated might be ok when premixing with your medium. But, powdered will wash into the soil better than granules. Sometimes it's hard to tell if its powdered or granules. Grow More distributes a dolomite lime that is powdered (I haven't used it, but I've read it's powdered. Local hydro store said it is. Google for it and you'll find lots of hits.).
You also need to be careful about which lime you buy. Some aren't dolomite. I could never find a good description of what makes dolomite what it is (compared to ordinary lime). I look at the guaranteed analysis of 1-2 dolomite limes and compare them to whatever I'm looking at. For example,
High Yield Agricultural Limestone is dolomite (but, it's a bit sandy texture, not as powdered as you might need to apply to the top of the soil). I would compare that to Grow More's anlysis to see a general pattern and compare that to any other lime product I find. You want pretty much the same numbers.
I have ph up and down. If I start keeping the water between 6.5 Will that regulate it out our do I need to flush.
I don't think you need to flush. I think that would be used if you gave too much nutrients. You just want the water and soil ph to be close to each other.
OF. If you are feeding at 6.5 and your run off is 5.5, then your actual soil pH is probably around 4.5, which we have seen from 
