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pH is 5.5 but i have nutrients deficiency. Can it be the cold?
MrBz21started grow question 3 years ago
One of my plants (in soil) has yellow leaves and brown spots, it is possible that it lacks Ca and Mg, but it's pH is 5.5. I wonder if this nutrient deficiency is caused by cold water (now I'm using it warm and waiting), low temperature or high humidity.
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Feeding. Deficiences
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BraveheartGeneticsanswered grow question 3 years ago
Hello, Try and keep your water around 18-21'C/65-68F. Too clod and your plant will struggle to absorb nutrients, too hot and the plant struggles to absorb oxygen. May be the other way around but you get what I am saying I hope. Not sure but that does look like a fungus rather than calcium, She is in flowering now and as you probably know, she needs less nitrogen at this stage. However the plant still needs it and will shed leaves when nitrogen becomes limited. Make sure you are keeping your pH correct and not overfeeding, autos can be temperamental when it comes to nutrient needs. I hope this helps, good luck and happy growing
GrowCNanswered grow question 3 years ago
I would shoot for a water pH of 6.5. If you look online for a "pH nutrient chart" you can see the affect of a pH that low. I do not think the problem is temperature or humidity related.
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Kush_queenanswered grow question 3 years ago
Your water needs to be room temperature however if you are growing in soil 5.5ph is too low have you checked the run off water and ph'd that??? Lots of nutrient issues are due to ph issues
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Hashyanswered grow question 3 years ago
Wow dude ph 5.5 is for coco. Soil is 6.0 to 6.8
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