Growers don’t think much about seeds usually, but in fact it’s a cheap and powerful fertiliser when processed correctly and used in the right time of the cycle. Phosphorus adsorption in soil is way better than with calcium phosphate as this is acid form we’re using here.
I used to make a lot of SST or sprouted seed teas then switched to adding in Malted Barley ground to a fine powder to my soil for the catalyst action and chitins.
I'll try and make a fish bone meal tea with a dash of vinegar. I've got a bunch of VEG plants that could use a kick in the pants. lol