Sulphur deficiency help plz

How do fix Sulphur deficiency? I read the q&a and it jus tell info about it not how to fix it.

you can buy sulpher at any garden store, maybe at a walmart or something. there is a few different options. i use sulpher to change the ph of my soil for my blueberry plants. actual fruit blueberries, lol.

sure it is sulpher? it does happen but rarely. got any pics. i bet it is nitrogen, they look kinda the same and nitrogen defs. happen far more often. but i am just guessing. good luck