Can I use grow big this far into flower to add some n
need help with huge northern light lady
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Any plant that mature can handle pruning. There is no real facts about Autos and pruning/ cropping. Everything that I have seen is more or less "bro-science". Trimming fan leaves at your stage (smartly) will only benefit her.
Come on guys please help I really need some advice of what to do next
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Better pics i am sure @Waira should be able to give a more solid diagnosis now.
But as you mentioned before you don't want to be feeding to fix it till you know the cause, as mentioned by yourself is most likely lockout more than underfeeding if using a tried and tested schedule. As Waira mentioned and i have noticed reading on here a few Fox Farms users hitting a bad soil batch of overly acidic soil, reckon if you get a PH reading using the method @briman posted posted you will find the cause of the problems there, and will give the pros something solid to work on help you get over this.
Best of luck bro, your in good hands here with the boys i tagged in above.
But as you mentioned before you don't want to be feeding to fix it till you know the cause, as mentioned by yourself is most likely lockout more than underfeeding if using a tried and tested schedule. As Waira mentioned and i have noticed reading on here a few Fox Farms users hitting a bad soil batch of overly acidic soil, reckon if you get a PH reading using the method @briman posted posted you will find the cause of the problems there, and will give the pros something solid to work on help you get over this.
Best of luck bro, your in good hands here with the boys i tagged in above.
Whats micro. I use the fox farm trio. Im doing the run off test now Im letting the first run off drain now and as soo I run second run off will post results asap, I see the burnt tips but I feed at a very low dose so I really dont think its nut burn and I havent have any problems my last 3 runs with this exact schedule, im just very concerned this late into flower on such a perfect girl. Thank you all for getting back to me so fast and as soon as the run off ph is done I will post. Now if it is low what exactly do I do to fix the soil ph just add higher ph water like 7.0 or something.
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..let's see what that pH is, and go from there,... I'm seeing definite K issues starting (yellowing/browning of margin "teeth")... the deal with pH is to determine if you have a simple lack-of defc's happening, or a pH lock-out of nute elements, which means they're there, but not in absorbable forms,... with K, symptoms can be more tricky, as the sings for K-toxicity are similar... what's you dosage conc. and feed frequency? There is a possibility that there's a cumulative salt build-up in the soil, which will also mess with pH and nute availability... lastly, make sure you pH meter is freshly calibrated!
My pen was calibrated before test water went at 6.5 came out at 5.4
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