I'd say it is fairly accurate. with that said Always start with less than they recommend especially when they are young they do not need as much. id start out with maybe 1/4 strength and slightly increase as the plants get older but always start with less it is always easier to fix a deficiency than to deal with the stress of nute burn. If you start to see a deficiency then bump the nutes up a lil then make sure the new growth does not show signs, cuz if the old leaves get some damage they wont really come back but the new growth is what you want to watch to make sure it is corrected but hopefully you won't have to even deal with it😎 and once the plants are older you may be able to run at the full recommended strength but like stated before always start with less and work you way up. Good luck Happy Growing👍👊