Nutirients:
House & Garden cocos A & B
House & Garden Bud Xl
Calmag
Have some of these bottom leaves going yellow and then dieing on the edges or even one single finger of the bottom leaves, im still running calmag with my nutes mix wondering if i should be cutting that out soon currently in week 6 of flower (day 40)
Heads are looking good, started adding some bud xl and looks like some of the heads are trying to grow extra heads ontop making the tips of heads a little disformed looking.
Also is it normal for the buds to get quite a nice smelly aroma and now it kind of smells like abit like vege smelling?
They look a lil hungry (nitrogen or magnesium at a guess), lower leaves shouldn’t be yellowing that bad yet.
The growing heads on heads thing is foxtailing, can be caused by light stress. You need to reduce the light to around 600ppfd for the last 2-3 weeks, growth is pretty much done by then and it is ripening you want to focus on. Any new growth now is not desirable - it makes buds airy, and I find the overall results are worse when the buds have foxtailed.
And lastly what water are you using? If distilled or RO then yes stay with calmag to the end, or flush. If tap then it’s not necessary.
I dont know if i can do much about the lowering the light as im running hps and cant go any higher on the height of the shades either also my ballasts i cant control any power going thru them.
I have start3d lowering my nutes ratio but its mainly on the lower leaves.
Could it be to do with the light not penetrating through and there fore the leaves are slowly dieing from not enough light ?
My area is crammed and im not doing this many again, i feel i will get a better return off less if not the same only ended up with more as a friend pulled out on wanted some cuttings so i had to take his aswell.
No worries, you can use this site for problem solving, it convers most things
As for the light, you can get “fan speed controllers” (basically dimmer switches on a plug) on amazon for a few $, that would give you the ability to control your lights. Otherwise they will continue to foxtail and really reduce the quality. They are fine to smoke just nowhere near as good, its stressed bud basically.
Yeah just take off the dying leaves then and see if the problem persists. You are nearly at the end anyway. If you have an EC and pH meter you can use those to make sure your nutes are at the right level.
Only just started using an ec pen tryna keep it around the 2.0 2.2 mark and ph is around 6.1
And sweet i will look into a fan controller, im currently running a 600w and a 1000w, do you think maybe i should switch off the 600w and just run the 1000w?
Only problem with me being in the southern hemisphere amazon takes over 3 weeks to get here sometimes so i will try see if i can source one locally and that can handle the 1000w of power. I feel ive done so well with them so far and definitely want to stop anything bad happening to them now haha
Thanks @SJ1
Without seeing your setup idk what the best solution is but you definitely want to make sure you are giving them no more than 600ppfd. You can grab an app for your phone called Photone to measure the light level, just make sure to calibrate it first (instructions are in the app).
I would also raise your input pH to 6.5 - assuming you are in soil - I always get lockouts if I go below 6.5. That’s probably why you are getting deficiencies even though your EC is high.
I downloaded that app, didnt calibrate as i was unsure how and what to go off in regards to distance and expose wise, ill attach some photos of my setup and also the packaging from my bulb box and maybe you might be able to shed some light pun inteded,
I did the first test with no calibration and the levels were high as by the buds which had the worst foxtailing, i then moved my lights as high as i can now and the readings were abit better but would be good to set it up accurately.
Also i was thinking 6.5 was getting on the too high but i will increase it abit more and maybe add some more calmag as i think its calcium defiencient and also nitrogen deficient and running on standard tap water.
lm also running in coco perlite 70/30 mix
Here are some photos of my setup and i will try get some better off heights tonight and check out that app
Your light should come with a map that shows the levels it produces at certain distances. You need to take the values from there and test them on your light.
Eg. measure 12" below the light at 100% power and use those numbers to calibrate photone. In this example, holding your phone 12" below in the middle you would calibrate it to 1132ppfd.
Then you are good to go.
As for ph, I know its recommended to go closer to 6.0 but I always get lockouts for calcium and magnesium if I stay at that level for the whole grow. So its best to vary it over time to ensure best uptake of all nutes. There are charts online that show you what gets uptaken at which ph.
@SJ1 nah i dont have any map like that, ive had the ballasts for a few years and were the early gen ones so dont have any boxing or maps to reference off,
Im hoping lifting the lighrs right up will help abit and @Icirazy22 temps are below 27, having a 600w, 1000w and a dehumidifier in there my fans cranking on 7 for tmost if the time and cant get it cooler plus i have a direct air intake from outside.
The walls are getting pulled in hard by the amount of pressure in there also running 2 sets of filters before the air from outside gets in on a 150mm ducting and a 200mm ac infinity fan but thinking yeah combination of heat and ppfd
pun inteded,
