it will tell you whether or not the soil is pre fertilized....at least, that's what i've always looked for.
Read the packaging and make sure on the ingredients it doesn't have any N or P or whathave you.
Also, be aware that slow release ferts aren't bad, persay, it's just most of the companies don't use organic ferts or they use levels that MJ doesn't really like. Preloaded soils can be found at your local hydro shop that will do very well with marijuana.
|