New Growth Yellowing

beachgreens

beachgreens

Active Member
I am growing in Readygro Moisture and using Botanicare nutrients (Cal-mag, liquid karma, pure blend pro grow and bloom), and bud candy. I am in 8 in square pots and feed with every watering allowing 10 to 15 percent to drain. The plants are in a tent, temps are around 70 with the lights on and 65 with the lights off. The plants have lost their green color on new growth. They started turning a slight yellow after I changed their light schedule to 12/12. In the beginning of their growth I was also under nuting them. My formula that I was giving them for almost a month was 5 ml karma, 5 ml calmag, 5 ml pbp grow. The leaves are also starting to curl and twist. :sad: Any help of advice would be greatly appreciated.
 

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nizmo

nizmo

Well-Known Member
Do you have decent airflow in there? What type of light and how far from the light are the tops of the plants?

It's not nitrogen or magnesium deficiency. Possibly manganese but my first suspicion would be heat/airflow problem.
 
beachgreens

beachgreens

Active Member
Well they are grown in my closet for veg...no door on the closet..pretty much open environment to my bedroom which is air conditioned, light is apr 18b in away from the canopy. I was cooling my light and venting my closet thru to the attic but i realized that i was wasting my money for the most part. I am only usually vegging till they are 10in or so.. when they go into my growlab for flowering which is vented and exhausted with 2 4in fans. The only things i have really changed was the amount of nutes and cal-mag....they were getting underfed by botanicares suggesed chart...:wall:
 
beachgreens

beachgreens

Active Member
No i have never had one... kinda just went by the bottle. i just jumped straight outta soil ffof and into readygro. Kinda threw me for a loop.
 
jcdws602

jcdws602

Well-Known Member
I use botanicare nutrients and in fact their feeding requirements are too high not too low....many people have had this problem.....this may not be your prob just thought i d mention it......how many ml per gallon did you feed this time??...and do you at least check your ph???......it could be many things..... i would strongly recommend purchasing a ppm ph meter combo unit
 
nizmo

nizmo

Well-Known Member
The general consensus seems to be that a ppm meter isn't nesassary for soil grows but i'm not convinced either way just yet. I'm yet to see anyone against the use of ppm meters provide any plausible scientific reasoning as to why exactly they are not required when growing in soil.

If you are sure that temps are not an issue, then my other suggestion would be to stop feeding it a rocket fuel of different nutes. Stick with a single plant food with a decent npk for flower (the one i'll be using is 6-3-10). When you mix them like that, you can run into all sorts of problems such as lockout caused by wrongly balanced proportions of different elements.
 
beachgreens

beachgreens

Active Member
Ya i need to buy one i know. I have been checking ph by the liquid drop test kits before and after watering everything seems to be in range but it could possibly be acidic maybe 5.5 or so. I have no buffer in my soil either... usually my ph is at 6.0-6.3 when i mix my solution.
 
beachgreens

beachgreens

Active Member
I never mixed the nutes all together just kinda put it out there for suggestions on formulas..my bad. I really just need a set schedule to go by on how much cal-mag to r/o water do i need. Thats one of the only things i experimented on with, is the cal-mag doseages. Sho??uld my solution always recieve 5 ml/gal
 
jcdws602

jcdws602

Well-Known Member
For soil you want 6-7 ph.........i put 1/3 ppm of cal mag of what the overall ppms are supposed to be at....so if i want my ppms at 900 i put 300 ppms of cal mag and 600ppm of my regular nutrients..
 
beachgreens

beachgreens

Active Member
Any way to break that down into a basic formula for me.. I know its tuff my plants veg two weeks. I just need a failsafe formula for week 1 veg and week 2 veg. Using karma,cal-mag, pbpg. I think that would help. The ppm in my r/o water is apr 80ppm. I make my nutes by the gallon. So i need a 1 gal formula for week 1 and a 1 gallon formula for week 2. Any ideas?? Thnx for the help...im stressin.
 
rzza

rzza

Well-Known Member
it seems like im looking at my own personal pics, i have a few that look JUST like those, structure, shape, size, color, everything.
 
jcdws602

jcdws602

Well-Known Member
PPM for Hanna Chart PPM


Seedlings, Early Sprouts 100 to 250 First set of true leaves

Early Vegging 300 to 400 4-6 set of true leaves

Full Vegetation 450 to 700 even higher depending on strain

Early Blooming 750 to 950 Week 1-2 of flowering

Full Mature Blooms 1000 to 1600 and higher depending on stran but no higher than 2000ppm Week 3-7 and up
this is my nutrient schedule...but it varies with strain.....
 
beachgreens

beachgreens

Active Member
what is tga and what do you think it is? im supposed to water tonight and want to make sure i give them what they need.
 
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