Hi, Technically you give all plants N, P , and K....So if you want to buy nutrients look for a MJ grownutrient, a blommnutrient and aBooster for the last weeks of the grow. In my opinion ist moree important if you grow in soil, to get a good MJ growingsoil.The soil should be slightly fertilised and fluffy and should have agood Drainage. I recommend Either to go with Plagron Royalmix ( or any other mix from plagron) or biobizz light and allmix. Mix it with microbacterias, Wormcastings etc. Then you have a greeatbase for your grow, and nutrients are just needed after 3-5 weeks after start.
But back to your Nutrients. Because you want to smoke the product, go with a organic brand. Organic Liquid is great too.
RQS has organic nutrients that were mixed in the soil. Iam testing them atm and they are greeat. You can look into the contest Diaries from the Royal queen seeds Contest here on GD.
My answer is not to detailed because there is abig range of nutrients you can use. But as I already said, to me the Basic of a grow is The Soil// Soilmix. For more // detailed Infos just get me per PM // or hit the Reply button.