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Removed started grow question 4 years ago
Ooo new question. Have a look what's causing the discolouration and blothing on my leaves. Read my weekly writeup to grasp what was happeing the week. I googled nute deficiencies/toxicity but it's all confusing me now. Thanks a mil
Mix bag seeds
27 weeks
Mix bag seeds Simsalabim
45 comments · 3 years ago
Week 18
Leaves. Edges burnt
Stick answered grow question 4 years ago
Hi @Simsalabim! Sunlight activates photosynthesis and the more sun the plant gets the more nutients it will require. Basically, your plant is consuming loads of nutrients due to sunlight and pre-flowering stretch. She needs more Nitrogen and probably some other elements such as Magnesium, Zinc, Copper... You can increase BioGrow up to 2.5ml/L and add a teaspoon of epsom salts in your solution, this should help her for the next week, but be warned she will soon ask for P and K while entering the flowering stage. Nutrient uptake is probably slow because of the lack of container so you can also consider foliar feeding, this should prevent the deficiencies to spread, but avoid spraying anything once the preflowers are out. Hope this will help, keep us up-to-date and happy growing :facepunch:
OutForReal answered grow question 4 years ago
When I Google deficiencies / toxicity I can compare some phosphorous deficiencies to your leaves and find out that the symptoms are the same so I would say phosphorus (P) deficiency with the rust part on your leaves , what you called brown blotches. The 2nd deficiency you have is a potassium one (k) as you can see some of your leaves have the edges that are starting to turn brown which is the 1st step then rust spot appears and a discoloration happens. 3rd observation : if the soil is still moist but the leaves are really droopy then it is an over watering issue , the symptoms of an under watering are the same but with a dry soil. 4th on the Bs#18 I can see the lower leaves yellowing which mean you have a nitrogen deficiency. To finish my answer I give you a link to a deficiency / excess chart ( in the comment section) that will allow you to find your issue or at least compare the external diagnosis you get from the Community :blush::v::skin-tone-3: