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Hawkbo started grow question 4 years ago
The yellowing on the edges of the leaves, is it nutrient burn? I'm at my normal ppms for this stage and never really had this happen but have added fulvic acid to my line up and is supposed to increase nutrient uptake. Any takers?
Hawkbo: ShiskaBerry
14 weeks
Hawkbo: ShiskaBerry Hawkbo
13 comments · 4 years ago
Week 3
Leaves. Edges burnt
mad_scientist answered grow question 4 years ago
Hello @Hawkbo ! It looks like a little bit with potassium deficiency but in theory its more possible to be nutrient burn from the fulvic acid (and since you are an experienced grower i am going to assume that there were no over/under water issues and stuff like that to create a potassium deficiency). That's part of the chelation. Fulvic acid beside its chelating properties ( binding the free ions and protecting them from reacting with different charged ions and precipitate ) it makes the nutrients moving freely inside the plant because of its very low molecular mass.It is very possible that this burned your plant (i have seen this happening before with bioag full-power). The better the quality of the fulvic acid the higher the risk of burning them. After all one of the main reasons of using fulvic acid is to reduce the amount of nutrients! Happy growing ! :+1:
Removed answered grow question 4 years ago
That's an early stage of potassium toxicity (leaf tips and margins burn). It probably is the strain that likes less nutes. I would give less PPM, 20% less I think. Good luck.
The_Projexx answered grow question 4 years ago
Yes sir that is the very early stages of nutrient burn ! My advice to you would be to decrease the dosage of nutrients by a little bit . Your plant is very young and to go almost full strength with it right away can be to much sometimes. Also I'm unsure if you are giving nutrients on every watering if you are i recommend you stop doing that and only give it to them every 2nd or 3rd watering . This will prevent the root zone from getting to hot because it can't absorb all the nutrients you put in the medium at once also with giving it PH corrected water in between nutrient feedings you can ensure that the plant will try and use 100% of whats nutrients are available in the soil at all times . Humic and Fulivic acids will aid in the healing process of this light nutrient burn you have here , you've gotta remember that w.e you see on the top will be on the bottom as well . So that means were you see the light burns on your leaves is also were your root zone is being affected . I would also try raising your PH your optimum ranges are 6-6.3 in coco I find that 5.8 might be a little to hot for your root zone but thats up to you. All in all your in good shape I would just decrease the strength of the nutes by a little bit and reduce the amount of times you give them nutrients as described above and your plant(s) will spring right back into shape <3 . I hope this has helped you on your journey -Happy Growing!