Diatomacious
Well-Known Member
I forgot to mention the most interesting thing about this sample. This sample had the base mix (coco, perlite, vermiculite) as well as 2 c earth worm castings per gallon mix and the sea salt. So to point out the obvious... my store bought worm castings had basically 0 nitrogen, phosphorous or potassium (I was thinking 3 g nitrogen from the 2 c). The only thing these store bought worm castings are good for is moisture retention.
This is a sample of the base mix... sea salt was added @ 4 t to brick. Phosphorous only registers @ 0.75 ppm which is very low. Potassium is @ 93 ppm which is low. Nitrogen is at 4.36 ppm which is low. The pH is a mystery to me as it usually tests out at 5.9.