You can naturally process organic and make this or read it buy ingredients separately.
K citrate is semi organic example, man made but citrate is organic and low salt index (may actually wash away nutes so dont use in soil until later or just foliar it).
Kelp extract to week 4 will give you some pgrs and K also may induce stretch.
Alfalfa meal tea will have triacanatol or just buy the powder who cares as long as its natural which it is.
Many super expensive fermented voodoo juice people swear by use natural fast delivery forms of researched pgpr microbes u can buy with d earth, pgr from kelp, alfalfa leaf wax etc and call it organic well diy lol