Potassium Deficiency:
This week, the plants clearly displayed signs of potassium deficiency. I noticed slightly deformed leaves in the middle of the plant, yellowing at the bottom, and burnt tips at the top. Upon reviewing my nutrient regimen, I realized I had misunderstood the composition. The grow fertilizer is primarily potassium, Fish Mix provides nitrogen, and in the bloom phase, nitrogen comes from the bloom fertilizer, not from the grow fertelizer. Additionally, phosphorus is in the bloom formula, and Top Max is merely a bloom stimulant without much of the three main nutrients. 😪
Adjustment Made:
Due to my conservative use of "nitrogen," I inadvertently caused a potassium deficiency since there was always enough nitrogen available. I identified this issue at the beginning of the week and increased the potassium dosage accordingly. This was especially important as the plants began to reactivate old lower leaves that are now receiving light after the Cereal Milk plant was removed to its own grow diary. 👻
Bloom Development:
The plants also surprised me by pushing buds more aggressively than I expected at the start of week 5 of bloom😈. I initially thought they wouldn't be this far along by the start of Week 5, but BioHeaven seems to be doing its job well. Thankfully, the deficiency symptoms have not worsened in the past three days.😅
Humidity and Watering:
Unfortunately, I extended the watering schedule by one day, thinking it would be beneficial to leave the plants in high humidity (70% due to rain in Germany) for an extra day to reduce the risk of mold. As a result, #1 developed burnt edges on the leaves in the upper canopy. Despite this, the buds look healthy, and I am satisfied with the progress this week. 🙌
Hey everyone, what do you think—do my plants have a phosphorus deficiency?
Two buds are turning a bit purple, and the lower leaves are easy to remove even though they are still green.
Photos are in my Grow diary.
Hello BussyBeeFarmer,
You got a nutrient lockout from nutrient salts builded up inside your soil. You give more then enough nutrients and everything the plant needs is there. But you need to water till 20% runoff to prevent nutrient salts building up and I would recommend to cut down your nutrients to 75% from whst you are giving now.
This should solve your problems and deficiencies buddy.
Happy Growing! 💚
Should I keep this deformed bud or cut it off? The humidity is high, and the sugar leaves are layered on top of each other. I'm a bit worried about potential mold. Any advice would be appreciated!
Thank you, @James! I'm glad to hear you think they look spectacular. Your encouragement means a lot! 👌 I'll definitely keep pushing forward and continue to give these plants the best care possible. Stay tuned for more updates!
It should be OK with the top max,top max is PK isn't it? It will more than likely be the light stress. I had it myself when I switched over to led,s because it wasn't warm enough.24 so increased to 28 and it stopped.I believe its mostly due to lack of radiant heat and the leaf surface temp.
@oldskoolkool, Hey, I've got some updates. It turns out that Top Max doesn't contain potassium or phosphorus its just a stimulant. Potassium comes from BioGrow, and phosphorus and nitrogen are in the bloom fertilizer. These nutrients are roughly in a 3:6 ratio compared to other substances in the mix. Because of this, I initially misinterpreted the deficiency symptoms, which led to the current situation.
It’s a bit confusing with BIOBIZZ if you don’t know that you can open the labels to get more information. Fortunately, I figured this out before things got worse. Thanks for the nudge to double-check the nutrients, saved my run!
@oldskoolkool, Thank you for your input! Yes, Top Max is PK. Since the plants are illuminated at night, they haven’t been below 22°C in the room for the past 2-3 weeks, even during "nighttime".
I just noticed a mutation on the plant and will update some pics later when I’m at home. Since the other two plants in the grow show no signs of phosphorus deficiency, I’m hoping it’s just a color change from some mother genetics. I haven’t found anything indicating that Cookies Gelato turns purple frequently.
I’m not too worried for now, though I’m not thrilled about seeing so many mutations in the RQS seeds. Maybe it’s something I’m doing? 😂😅
And thanks for the tip about the basement! I’ll make sure to keep them off the cold floor and maintain the temps.
Thanks! These are my first plants using these nutrients, and so far, I’m extremely satisfied. I used Hesi before this. Once I finish the grow, I’ll let you know if I can recommend them. So far, they’re looking really good!
Nice one. I ended up checking the top max for someone else and found out its Humic Acid which is especially good for organics as it makes the nutrients more available. I use it all the time in synthetic nutrients as its in my base grow,ph perfect sensi grow in the form of fulvic acid. I also use advanced nutrients Ancient earth in my organics as Iv been doing both sside by side for a few yrs now. If money isn't an issue then advanced nutrients are by far the best.They don't just add the 14 mineral eliments the plants need they add so much more. Their organic iguana juice has several times more ingredients than bio bizz,things that add flavour like fish hydroslate.Their whole organic range is amazing but its not cheap.