Seedling Problem!

Thats P and or K man Do you have your PH dialed in? If your flowering you need a higher PK ratio but there is a lockout somewhere. See what I mean us Yanks have no clue although I am thinking the humor is the same. LOL

Could it be mag lockout, i did give epsom salts a few weeks ago to every plant in flower but just did this the once, now i'm wondering if i shouldn't be factoring it into all my feeds? Is it usual for biobizz and similar to be low in mag as i did check a long time ago and found that it has a good supply of it in the fertilizer? Maybe my soil company has reduced its mag levels in the soil, i don't know what they amend it with for the soil to have mag in either. I just give a small pinch to a litre of water and dissolve to feed, could i add a small pinch every time i fert or everytime i water? Dose it react with the ferts and best to give with straight water to the soil. I cannot foliar feed but realise this would give me quicker results be it good or bad.

After hearing what you say if you could consider the mag questions and if it is a factor here i will certainly consider upping my nutes, i am always cautious with nutes, an underfed plant is easier to fix than an overfed plant. This is just happening recently and i did think p and k but is that for my seedlings and small plants as well? I know the veg nitrogen combo and feel that this may be what soil companies are aiming for neglecting the p and k? How and when should i administer mag in veg? will it hurt young plants or should i leave of the mag and up the biobizz first? Ph should be good, not added much ferts and always wait till good runoff, epsom salts might help if bad pH though?

As far as the Mag ? I defer to Max he seems to be the Mag master diagnoser. I am sticking with the PK issue . Lets see what max says.

Yes max did say right from start! I am quite confident that it must be p/k and mag. So what am i looking at doing in veg, using my bloom instead of my grow? Max any info on mag for my specific situation would be great, keep me on the cautious side though as i really worried that it will cause salts in my soil etc etc. I must look into the effect of epsom salts on soil as it is my only mag supply and we dont get cal/mag in my country?

it does look like the start of a mg def, but damm so early it its life. Im gonna have to reread this thread... If it is a mag def, then its either caused by low or high soil ph (usually low) ro water without supplementing, or lack of food

ok couldn't really find anything out about the soil your using, does it say on the package what it's used for cause I know alot of potting soils are ph'd to be more on the acidic side which im thinking could be the culprit. Does it by any chance say what it is ph'd with and what's its best used for?

I'd go with lack of food, small plants are showing what looks like p/k i think, older plants definatly, all the pics are there for you just one pic and the bug is of a plant a few weeks into flower but same reacurring problem, plant asks for nutes too early and even straight after a repot! Strange i know, can only put it down to low nutes in soil but this is not it has been like for last few years just this season. I have plants finishing in 5/6 weeks so need to get it sorted, see what you think. thanks.

are you having these issues in flowering? And I really don't think its underfeeding because I have used promix for a while and have never seen a mag def in veg that early, now in flowering when the plants have used up all buffering agents (lime) that's when the soil becomes acidic because the peat is starting to break down. I'm guessing your problem is originating in your soil. I had a BITCH of a time figuring out what the hell was goin on with my promix in flowering, in veg they were healthy as shit but always around 2 weeks into bloom was when it would start. I f'in tried everything you could possibly think of more food, less food, supplements, ro water, tap water,co2, no co2 and I still couldn't figure out what the hell was goind on.. I knew i had a mag def but couldn't figure out wtf was causing it...UNTIL I went out and bought a soil meter ( which i know aren't that accurate) but... I had 2 samples of different soil that I was testing, Brand new batch of FFOF and my promix that my ladies were in that were half way into bloom, ffof ph 6.7, promix 5.3 BINGO holy fuck did I feel stupid for not even thinking about that earlier... As you stated you have some shit soil (possibly) my best advice is do your research on the soil that your gonna use cause if its not right your plants won't grow to full potential

I wanted to make it two seperate threads and the compare notes at the end but here is the flowering thread, it is only lower leaf drop and only a few at the moment but i somehow feel they are related, seriously i am giving ferts to flowering plants almost a week or so after repot, even before the roots fill the pot and i use to give nutes 5/6 weeks last few seasons. Here it is anyway -

https://www.rollitup.org/marijuana-plant-problems/432292-lower-leaf-problem-pics.html

I may be getting two seperate issues mixed up hence the two threads, plants will finish no probs but yeild is gona suffer if it continues to the end. Adding ferts seems to slow it down and close to stop it but never goes away, i am confident with upping my ferts and doing it sooner but am unsure with and when to give mag at the mo. Thanks

alot of people don't know how important magnesium is and most food companies just don't put enough in there.. can I recommend a thread for you to read? Its pretty long but very helpful

If you post the link yes i will read it and get back to you, i have my oldest plant ready for watering tomorrow, i have ferted weakly for two weeks previously so i have a good oppotunity to up the nutes and mag and then for my whole grow. Thanks

https://www.rollitup.org/marijuana-plant-problems/427557-fox-farm-ocean-forest-soil.html


Has some good info in it, I was almost ready to put my head thru a wall

Ok dude that was helpfull if not long. I have loked at my plants again and am now certain i see mag, cal and p/k deficiencies. I will try and correct one plant tommorrow, if i can get hold of dolmitic limestone tommorrow and crush it down to a fine powder how many days do you think it will take to notice a change? How do i apply this to a potted plant as well? Do i go with the mag too or just up the nutes? Is this my problem in the veg room too? I have never added mag to a plant in veg up to today as i never had this big a problem. Would you recomend ferts with mag and cal mixed all together before watering or seperatly at seperate waterings? Any help i can get here would be appreciated and am really thankfull that you have all helped me solve my problem. Seems like soil companies got a lot to answer for!!!! Seriously though i feel a lot more confident at solving this problem and your first pics of your plants with the cal/mag deficiencies looked very similar to mine! Its like the answer was staring me in the face all the time and i couldn't see it.

One other thing i did get out of that thread was that peacefullkid is a real noob beyond belief and definatly not constructive in any way, what a crazy kid. Sorry peacefull kid but you got a lot to learn!

I have to go to bed now but will pick this thread up tomorrow, really p!$$£d off that i didn't get to this problem sooner as i now have half flowered plants that have problems i wish i had sorted out weeks ago, guess you don't realise them creeping up on you like that. Again guys thanks as this has helped me no end and can really identify with that thread, really good info in there. Thanks

fucking rabbits, good luck fella..

Thanks welsh smoker and you. I have bought some garden lime and have some experience with it before when i first started growing, on the back it says -

SCREENED LIMESTONE
NEUTRALISING VALUE - 50%
TOTAL PASSING THROUGH 150 MICRON SEIVE - 20% MINIMUM

It is quite fine but i will pestle and mortar it even finer, basically down to a powder for the first few applications on already potted plants and use it as it is and adding it to the soil of the yet to be potted plants.

Please advise me on dosage for young and old plants, i know i could find details but i want to hear from an experienced grower as well. I take it this stuff is hard to overdose a plant with. Am still a bit hazy with this all and will await your reply, thanks again.

it's pretty hard to od with lime, did you wanna put it on your plants that are already potted?

Yes i did want to put it on the already potted plants to see if it solves anything, i would like to add lime, calcium and the bloom tonight, would you think this asfe to administer all of this in one feed and how do i apply the lime to the soil? I use ten inch pots in flowering. I will also be doing some repotting in the next few days so how much would i add to the soil before i put the plant in it? Any advice is helpfull here, i am still leaning towards the cal and mag, thinking of upping nutes a little and starting cal in the soil for every plant and mag from about 3/4 weeks veg till the end of flower. Any ideas? Will be back on tonight and i can crush the lime into a very fine powder for fast acting as well, what do you suggest?

Sprinkle the top of your soil with it and then water, takes little bit to start working so you might wanna supplement 1-2 waterings until the lime kicks in