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Brown spots

Moznurseuk
Moznurseukstarted grow question 3y ago
Can any help me diagnosis what's the problem with my plant. Only got 5 weeks left till harvest. Brown spots started at the bottom of my plant and worked its way to the top. Any help would be much appreciated. You can have a look at the diary to see what I'm feeding and watering.
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Week 14
Leaves. Other
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DutchDoobie
DutchDoobieanswered grow question 3y ago
High Moznurseuk, The spots on your leaves are caused by calmag dificiency. You need to add some calmag with your nutritions. Also make sure that the pH of your water is right. You can measure the pH of your water and nutrition solution and this should be close to 6.2 on soil. You can also measure the pH of your soil using demineralized water. I always do this just to check if my soil is still in the right pH range. This is really easy and can be very helpful. You need a measure cup of at least 250 ml. Then you add 150 ml demineralized water and you add soil till you reach 250 ml. Let it solve and stir well for a minute. After this you can use your pH meter to check the pH from your soil. Happy Growing! 😋
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Grey_Wolf
Grey_Wolfanswered grow question 3y ago
@Moznurseuk its the beginning of a calcium deficiency mate usually due to the ph being a bit too low with soil use calmag sparingly as it doesnt work as quickly as it does in hydro or coco
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GrowingGrannie
GrowingGrannieanswered grow question 3y ago
This is the start of a calcium deficiency. Drop your pH to about 6.2-6.3 and add some calmag... you should be fine! Good luck with your grow - and thanks for the diary and information! Sorry I was a little short with you before - the heat was getting to me! :-D
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