Got a couple clones here seem to be having some deficiency problems and i cant quite put my finger on it. the ph is a lil bit high 7.5. and im lowering that slowly but it seems that the leaves are starting to deform and curl with some yellow discoloration on them. and the occasional brown spot on the lower leaves. the 2 pics are from the super lemon haze and the other larger leaf pic is from the burmese kush
Help! plants have some deficiencies and i cant diagnose. PICS INSIDE
- Thread starter helmet505
- Start date
The Midnight Gardener
New Member
You need to get your ph in check, it's way too high for hydro. You can feed them all you want and your problem is going to get worse until you get your ph in the proper range. Don't "slowly adjust ph" as you said you were doing. Immediately adjust it to the proper range. The growth that is already fucked up will stay that way but the new growth will look normal once you get the ph in the right range. If you're doing dwc or rwdc then put your ph at 5.5/5.6 and be done with it.
The Midnight Gardener
New Member
Why do you have hydro tron on top of your soil? As for the ph, 7.5 is still too high, for soil run it at 6.5 to 6.8 and you'll be good.
Filthy Phil
Well-Known Member
Lower the ph by flushing it, feed with nutrients ph'd to 6'5 to 6.8 directly after. Befor you flush give it a good foliar feeding, and in your nutes, start adding humic or fulvic acid to help make nutrients more easily assimilable
The Midnight Gardener
New Member
That pretty much sums it up. I would not use the humic or fulvic acids though unless you are an experienced grower as these can cause you more problems if they are not applied in the correct proportions. Get your ph straightened out first.
Xproject
Member
Just a noob myself, but i'd get rid of the hydroton and replace with soil. jmo
Filthy Phil
Well-Known Member
Also, the lemon haze is a light feeder. Its one of my.strains I use in every.cycle, its my fav. It uses less nitrogen than most, but can take ample amounts of magnesium and sulfer. Also, make sure to trim way more of the suckers from the bottom than you usually would with most strains because it loves to jump the first three weeks of bloom. It responds very well to topping (unless you have tje 7 week pheno which that doesnt look like) only because the 7 week just gets too horizontal and is prone to flopping over. Anyways, good luck with her, I think youll love her. I just got mine tested a few weeks ago and it came out to 22.2 total cannabinoid percentage with 2.2 being cbd. I got the 5oo gram per square meter using 1000 watts per square meter too, nine plants, 3 gallon pots... So they arent lying in their specs....at least with slh they arent (greenhouse I mean)
Filthy Phil
Well-Known Member
To be honest, I dont know. How long has it been in the soil? If more than 3 weeks I would say yes, give ferts. However, I dont grow soil anymore and have never used fox farms sooooo, my advice is speculation, but my thoughts would be if the plants have been in the soil for 3 or more weeks, then yes. However get some soil specific experienced advice if you have the feeling to.
Also, I think the hydroton is a good idea, especially at the bottom. On the top, add some more perlite and it will be ecen more helpful in filling in the cracks keeping fungus gnats and other bugs away as well as preventing root erosion and disturbance during feeding and watering
no man...i use FFOF and there whole line-up of nutes, and always have...just flush your soil with the PH'd water, and keep it in check from now on...i would still get some cal mag plus though...its so important, and i would say one of the more typical deficiencys...o, and get rid of the hydroton...theres a lil trick called aerating your soil...well, kinda, but you take a fork...stick in the top of your soil, and just flip and break the top like 2 inches of soil...it gets oxygen deeper into the soil. my plants always seem healthier.
Xproject
Member
Thought I'd read this somewhere, concerning the hydrotron. From mandalaseeds.com
Roots grow down due to gravity. The majority of roots in a cannabis plant are to be found in the bottom half of the pot and in particular along the bottom (later, when the plants start to outgrow the pot the roots will fill it to the top). If the roots hit a dry layer of stones/clay pellets with many air pockets they shrivel, dry up, and the plant has less root mass to supply it's top growth. Again, also valuable nutrients and water are lost, because the bottom is not layered with potting soil.
- Bottom or top layer of Hydroton clay pellets or stones in containers:
Roots grow down due to gravity. The majority of roots in a cannabis plant are to be found in the bottom half of the pot and in particular along the bottom (later, when the plants start to outgrow the pot the roots will fill it to the top). If the roots hit a dry layer of stones/clay pellets with many air pockets they shrivel, dry up, and the plant has less root mass to supply it's top growth. Again, also valuable nutrients and water are lost, because the bottom is not layered with potting soil.
watchhowIdoit
New Member
What he said^^^^especially if they were new rocks that did not get rinsed very, very well before applying them......