The process in making seaweed extract defeats the purpose at what kelp provides to the soil.
Kelp meal, which the majority of it made for livestock. . Acadian sea plant , kelp meal hydrated in a glass of dechlorinated water turned into a paste. Simple add a couple of tablespoon of this paste To a gallon dechlorated water and feed the soil. Seaweed extract from a bottle especially From GH organic line is inferior and the extracting process kills the secondary metabolites.
Elements, amino acids, plant hormones, enzymes, alginic acid, mannitol and etc. green ghost hit it on the nail about making your own tea. Kelp meal teas to seaweed extract is like freshly squeezed fruits are to bottle juice..
Again I will say, organic is term that seems to have different meanings depending upon who you talk too.
SensiZym sells for over a $100. Per gallon.. I can make a superior product , at fraction of that cost.
I'm in the wrong business.
Want to learn about kelp.
Seaweed & Agriculture by D. T.L. Senn. Decades of research.