First Grow - Sour Diesel and Wedding Cake Autos

@SimpleGrow, hey thank you for the info! I'll post the chart I was using. It was from GH and it was the light feeding schedule. I did this because I heard Autos don't need that much nutes and my first grow didn't want to do too much. But based on your recommendation I will definitely alter the formula. I could try the medium feed schedule. Although the light feed has an increase in nutes for week 2. I'll post it in the pictures too. I gave them a gallon each of nutes last week which was probably too much, but I wanted to activate the Myco in soil so when the roots reach out the the myco will be ready. I haven't given any nutes or water this week yet and he soil is just about dry enough to water again. Check out the new picture of the chart and let me know if I should continue. Also, I have CalMag, Armor Si and Dimaond nectar on the way (1/24). Thanks again! 🤘

@djclean808, hey thanks for sharing the chart. I do like that you are not overfeeding your plant but I would say that at this stage you HAVE to give your plants more nutriens. Especially since cannabis is basically like a race car. Anything that grows need nutriens. Auto, photoperiodic or just living. It needs food, and alot! So don‘t worry about overfeeding, I did calculate it exactly. The only problem I see with the chart ist that Bloom itself has alot of Phosphorus wich was shown to be only beneficial up to 90mg/L. Ontop of that it‘s a bad environmental polutant and causes plants to not metabolise cannabinoids. So especially in flower I don‘t understand why brands recomend using so much phosphorus. Anyways, your plants can definitally take it and imo it need the Nitrogen and Posassium the most right now. Not to say they are starving or anything. Btw if you‘re not sure if you overfed them with the gallon, you didn‘t! It‘s impossible to overfeed with the amount of nutriens that were in the gallon, i‘m sorry if that sounds harsh or something but it‘s true. You would have had to feed 5 Gallons to even reach the recommended Nitrogen concentration, so don‘t worry about that! And Cal-mag is also a great idea to get! Magnesium is essential for photosynthesis so it‘s best to start soon although it takes time for the plant to show deficiencies. I hope this helps and of course🙏

@djclean808, Btw if you didn‘t have any calcium or Magnesium in your solution it‘s great that you have Cal-Mag there! Because I believe it has around 4-5% nitrogen, wich would make the nutriensolution even better since 160mg/L N is a bit on the low end, I would put around 3,5ml/Gallon to get it around 200-210mg/L N 😁

@SimpleGrow, ahh thank you. I would like to cut the phosphorus for the reasons you explained. I put together a chart that has everything I will be using-Based on the light feeding schedule (in pencil so I can earse and adjust). Also I found the FastBuds Autoflower feeding chart which has very small amounts of nutes imo. There's just a lot of info out there and it seems I can use it as a guideline but ultimately come up with my own formula based on what the plant needs (and others recommdations/experience 😉). I'll post those charts as well. You recommend Grow and Micro at 3.7 for all weeks?

@djclean808, Yes following the charts is good way of staying on track but ultimately it comes down to how much N,P and K are in the solution. Remember that these are companies and they always try to sell you something. It‘s just obviously too much phosphorus in Bloom in general so I think they should be held accountable for recommending so much in some form. So for you I think 7,5ml Grow, 7,5ml Micro and 2-3,5 ml Calmag is more than sufficient. 3,5ml Bloom extra will get you to around 90mg/L P and a bit more potasium wich is good. Normally you would have to consider the weight because i‘m going with 1kg=1L fertelizer. So i‘m calculating the minimum . You also feed everytime you water until flower and since the EC is around 1.300, it is ideal for nutrien uptake. I don‘t even have to measure it. I do see that following recommendations based on experience of others seems a bit weird but thats not really where I’m coming from. If you google „NPK cannabis, studies, nutrition for Veg or Flower“ for example, you will come across very credible studies done with cannabis by giving hundreds of plants different ratios and monitoring the results(kinda advertising here haha) So if you‘re going for high yield I would go for optimal nutrition that predicts that :) I did have two plants last year yielding around 200g so I‘m not trying to just sound smart! It does work well (at least with the Lemon skunk strain)

@djclean808, I know you didn‘t ask for all this but i do wanted to comment something 🤣 😁so it‘s of course totally fine if you want to follow/create your own style of growing. She does look great 💪🏻 Just one more point: Remeber Autoflowers are especially on the fast lane. The only reason i could see for them needing less nutrition is because they tend to be smaler than photoperiods. But where elso should the matter to grow a leaf come from?

@SimpleGrow, hey I didn't ask but was hoping someone would help out! 🙌 so I definitely appreciate it. I just mean custom as not what's on the bottle or really their feeding chart. Cutting P and adding more N,K. I never really calculated the mg/gal before and just ml/gal. So I will adjust the formula to fit the mg/gal parameters you recommend.

@djclean808, Sounds great, good luck to You! The amounts I recommended are already in ml/Gallon but I would definitely factor in the weight. If you need help lmk (if it‘s close to 1:1 you can ignore it)

@SimpleGrow, wow just did a little research on it and understand what you mean about mg's. Which is also ppm/l. So definitely going to dive into fertilizer calculations now 🤯 but I actually like doing math!

@djclean808, great 🙌🏼, it‘s very intuitive when you get the gist of it. :) I always start with the total weight of the substance in my fertelizer and multiply it by the percentage I’m using (4ml of 1000 would be 0,4% so times 0,004) you will get grams so you‘ll have to convert to mg wich is 1/1000.

@SimpleGrow, suprisingly this is making sense! Haha. Once I calculate each fertilizer (NPK percentages, as well Cal and Mg) those numbers stay the same per each bottle of fertilizer. Then calculate the weight of the nutes in mgs per ml?