yes that is correct, also it's a good way to incorporate other advantages of those as well, the chitin in the crab meal, the biological "condo" that is the biochar, calcium, etc.
The crab, biochar, and oyster meal will do more for your soils ph than the gypsum, but the gypsum can help sorta "absorb" any excess salts you may have, increase drainage as well,sometimes excess organic nutrients will turn a soil acidic, and have too much undissolved nutrients in it to promote healthy plants, and the gypsum sorta "buffers" that, to a degree
For me, if ph is a severe issue, d-lime is a last resort, but to be honest I've never had a ph problem since turning to living organics. SO my experience in remedying this isn't as comprehensive as i'd like it to be, in order to give you solid advice.
I know for me? a good homemade compost literally seems to cure everything, sounds stupid, but i'm serious, I don't know what magic is in my compost pile, but it's the best cure-all for my plants.. hell even a compost and silica tea seems to kill spider mites for gods sake...
My good ole compost pile...
wish I would have know how well they work 20yrs ago.
