I have done research.. I just like talking to people who have done it. I tried it on my outdoor this year and had very good results.. kept the frost away longer.
I use North Atlantic seaweed and guano in veg.Slows top growth and helps plants bush out.Lasts about a week.Also helps plants fight stress from dry soil,heat, and bug attacks!
I mix Epsoma organic sea-kelp into my soils - it's 1-0-2 and I mix it in at a ratio of 2:1:., where 2 is sea-kelp and 1 is bone meal and .5 is Blood meal (4-12-0 and 12-0-0).