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I need some help . my PH of soil is problem , and i can't just replant them now becouse i just plant them in 5l pots , and they are stress out of it a
Ancient_Geneticsstarted grow question 2 years ago
I have a problem with my uper leaves turning yelow on the edges, and she can't use phosphorus, becouse PH of soil is 7,35 to 7,65 depending on part of soil i check, how can i lower my soil PH to 6,2 to 6,9 ,If someone now a good way to solve this problem, I would be grateful.
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Leaves. Edges burnt
Leaves. Curl down
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GrowingGrannieanswered grow question 2 years ago
Use PHDown when you water/give nutes... you'll need a reliable PH pen to be accurate (and it's DEFINITELY worth the investment!) ... I like Apera myself - a bit cheaper but just as good as Blue Lab which seems to be the "gold standard" ... Wish I had bought one at the very beginning of my growing cannabis as it would have saved me from a WHOLE LOT of problems.... When you get the pen, you need to keep the PH between 6.2 and 6.5 for the plants to be able to absorb most nutrients and micronutrients.
Good luck
longearringboy420answered grow question 2 years ago
You can add a bit of vinegar in the water. It will lower the PH. 1ml / gallon will lower the Ph by 0.2-0.3.
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Ancient_Geneticsanswered grow question 2 years ago
no all the new leaves are fine, and these were until 2 days ago, they were fine in the evening, but in the afternoon they turned yellow on the edges and curled up a bit, they are outside so they depend on the sun.
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Lushgaiaanswered grow question 2 years ago
Also those edges could be a light stress not sure how close and strong your light is but it’s hard to tell with only one pic, how’s is the new growth coming along does the problem continue on new growth or just the old leafs
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