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More yellowing... not sure what to do

Czarstroke
Czarstrokestarted grow question 4 years ago
Hey everyone. Thanks for all the advice. I just re-uploaded some pics where Im afraid you can see the yellow with the twisting, and brown. Some of the crispier dead leaves I had to take off. My PH pen was just recalibrated. How do I move on from here?
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Week 6
Leaves. Edges burnt
Leaves. Color - Yellow
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MrBlocc420
MrBlocc420answered grow question 4 years ago
Looks to be a molybdenum deficiency, The initial symptoms may appear similar to a nitrogen deficiency (yellowing of older, lower leaves). Leaves may become mottled or spotted. However, the tell-tale sign of a molybdenum deficiency is the leaves may start to display a unique orange, red or pink color around the edges which will start to move toward the center of the leaf. Sometimes the color appears in the middle of the leaves as opposed to the edges. For cannabis plants, molybdenum tends gets locked out at lower pH ranges. Your cannabis plant may show signs of a molybdenum deficiency if the pH at the roots is too low, although it is likely that molybdenum is there. That is because when the pH of your root zone is off, your cannabis cannot properly absorb molybdenum through its roots. Therefore the first step is to ensure that you have the correct pH for your growth medium.
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The8thChevron
The8thChevronanswered grow question 4 years ago
She's in the last leg of the race. She is probably looking for more phosphorus and drawing it from the leaves when she can't find it in the soil. Be careful, because nute lockout is also a possibility that adding more P would only exacerbate. Test the pH and EC of your runoff to see if you need a flush. If not, then add more nutes from whichever bottle has the highest P value. Good luck my friend.
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Athos
Athosanswered grow question 4 years ago
If you see carefully, this yellowing is different than the ones on the last pictures. This yellowing is present on the top half of the leaves and has burnt edged and tips, classic potassium deficiency, which is kind of normal at this stage. It needs more flowering nutes, since its hungry making buds.
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DoDrugs420
DoDrugs420answered grow question 4 years ago
Oh boy, you gotta stop with the bio grow, its burning ur baby, its got nute burn all over, tooo many nutrients, stop using nutez for a while and you will be fine. You will be tempted to use them, but just don't, let her recover and use what she has to use to get back to normal. Best of luck, everyone before has told you yellowing is normal, and it is, just dont give her more nutes or you will end up killing your plant. Stay lit growmie If you dont mind just offer the question point to me, i really want to win the grower of the month competition. Your help would be deeply appreciated, thanks.
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