If you don’t have a growlog please answer these questions.
What strain are you growing? Is it Auto, Fem or Reg? ROYAL DWARF Autoflower
Are you growing Indoor or outdoor? INDOOR
Are you using nutrients? Which ones? How much? YES, BIOBizz only, Grow, Bloom, Root Juice, Top Max, Heaven.
I have 3 plans Royal Dwarf Autoflower, on 2 of them leafs become yellow, what is the reason for this , some deficiency?
Are you following the BioBizz doses that are shown in the guide? I use the same nutrients, maybe you’re messing up the doses.
Your Growlogs doesn’t show the ml/l
every week 1 feed with nutrient and 1 or 2 with clear water, mostly bio grow 1ml/l, bio heaven around 3-4ml/l, top max 1ml/l, bio bloom 3ml/l. All values depands of the week.
The doses are good. I would add another feed with nutrients. I do two with nutes and one with clear water if needed. I’m pretty sure is CalMag deficiency, are you tracking the pH? That way you can stop the deficiency.
It will stop spreading to the rest of the leaves, the ones already damaged will remain yellowish.
I was just going to ask 1. What water are you using? Do the ingredients on your nutrient containers list calcium and magnesium? Are all the necessary nutrients listed? Make sure you grab some ph Up & Down as well as a good PH pen such as HM Digital and Ph your water after you add the nutes to 6.5 or 6.6. Here is a Ph chart from Oaksterdam University.
Also whatever water you are using is going to have a ppm content. A parts per million meter is helpful also. So, if you are using hard water like I have the ppm will be 575 before you add the nutrients. Moreover, despite knowing what the ppm content is you still don’t know how much of what makes up the 575. This is why I suggest using purified water which has a ppm content of about 15. I see this is posted 15 days later. How are things going now?