Yellow/white buds/tops since bloom started. Now in week 5.

FastEddie916

FastEddie916

Member
Another newb here. Second grow for me and the girls are coming along. A few hickups in veg (ph) but fixed before 12/12 transition. Since the transition, this;
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Please help!
 
robert030188

robert030188

Well-Known Member
Red/purple water leaf stems indicate Phosphorus or P and the rusting edges on your fan leaves indicate potassium or K deficiency
 
FastEddie916

FastEddie916

Member
Girl Scout Cookies (supposedly), 4 1000w vented lights, 4'x16' tent, 1;4 pearlite/soil, temp 77-82, humidity 50-55, co2 set for 1150ppm's, G.H. Floranova expert drain to waste regimen + calimagic currently at 850 ppm not ph adjusted, feed every 3days (when pots get light in weight). Some ph issues in veg. I was ph'n up to around 6.0 (drop/color tester) and went into lockout. Checked runoff ph and it was really green so I did some research and read that your not supposed to adjust ph in soil. Flushed and stopped adjusting ph problem solved. Now in bloom and the runoff ph is around 5.5. Should I adjust ph or not? Maybe the soil was trapping the ph up. Without adjusting ph, nute solution is acidic. Is ph even the prob? Iron? N? The yellow tops are buggin me out. Please help R.I.U.!
 
robert030188

robert030188

Well-Known Member
Yes most definently associated with PH...the ideal to have soil at is 6.5-6.8 PH, the fluctuation also doesn't help. What PH is the water going in?
 
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echlectica

Well-Known Member
That is most certanly a K deficiency and usually when your have a K def at this stage it comes with a P def. You can save them but yeild will be slightly diminished. Get a PK suppliment like Liquid kool bloom or the equivalent and they'll start looking better quikly.
 
robert030188

robert030188

Well-Known Member
In soil you always want to be on the high end...in a nutrient uptake chart soil is best around 6.5, i know what it says but soil imo has always done good a lil higher
 
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echlectica

Well-Known Member
FastEddie916

FastEddie916

Member
Liquid koolbloom is in the regimen already. Up it? I think I will adjust the ph first and see what happends. I aprreciate the help echlectica.
 
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echlectica

Well-Known Member
FastEddie916 said:
Liquid koolbloom is in the regimen already. Up it? I think I will adjust the ph first and see what happends. I aprreciate the help echlectica.
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Yeah if you don't have a pH meter that is your problem but its manifesting itself as a P-K lockout. You absolutley must have a pH meter if your doing anything hydroponic and if your using hydro nute in soil you must adjust that before feeding.
 
robert030188

robert030188

Well-Known Member
Yeah if your regular dose doesn't work of cool bloom with new PH lvl, bump it up it can't hurt...how often do you flush?
 
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echlectica

Well-Known Member
Also if your putting 850ppm of Calimagic in your mix thats way too much that much Mg will lock out K in a heartbeat.
 
robert030188

robert030188

Well-Known Member
And do you know how much your nutes affect PH? If you can find that out it would help you greatly....sorry bro but im calling it a night...any other questions feel free to message me
 
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