Gad Dangit!

About 11 days ago i transplanted my seedlings into bigger pots using promix bx soil and mixed in less than 1/2 perlite. After the transplant i watered the pots. They didn't look too bad for about a week. I watered all pots with 10-52-10 at 1/4 strength cause of reading that it would be good for fresh transplants to help grow a strong root system. I've been goin crazy tryin to read up on websites and grow bibles but can't seem to find what's going to hell. Keep in mind my room is around 72ish with a chincy humidity meter (4$, lol) reading 70, got no ventilation either and ph supposedly 7 or lil bit higher(7.2).

Pics 1 (possible mg deficiency?) and the rest of of various plants (notice how they all seem to have the grayish/gold specks growing between the viens; the one plant's leaves are curling up and cupping). Some of the plants lower leaves are totally dead or have dropped. What's the most likely culprit?

I'd really appreciate any info as to what is giving me grief. tyvm for the posts.

they look a little burnt. i'd water with just fresh water the next few times.

You don't need to feed when you transplant in soil, especially not with 10-52-10 NPK, that's more of a bloom fert man. You need more N during veg, you should of read this. Your new soil will feed the plants nicely for around 3 weeks. I don't feed hardly at all during veg, just pot up to fresh soil and bigger pots. They love it!

So as FDD says, they're prob burnt. So you might want to also consider flushing your soil.

SnowWhite said:

You don't need to feed when you transplant in soil, especially not with 10-52-10 NPK, that's more of a bloom fert man. You need more N during veg, you should of read this. Your new soil will feed the plants nicely for around 3 weeks. I don't feed hardly at all during veg, just pot up to fresh soil and bigger pots. They love it!

So as FDD says, they're prob burnt. So you might want to also consider flushing your soil.

Click to expand...

About feeding after transplanting: the only reason i did so is because the soil bag said to start fertilizing after week 1 of transplanting; this makes me confused. Does that apply to soiless mixes, if not how should i deal with fertilizing? I do know to use N ferts during veg. The reason i used the bloom with high P comes from a book i read that said to use ferts with high P to aid the plant develop a good root system for future growth. I guess i was also kind of worried about burning the roots with high N at such a early plant age; the plants are 28days. Is this too early for a transplant? How many pot size upgrades would u suggest for that method?

Sorry, I just read the 'soil' part in your post before. But I see you are using pro-mix, which as I understand it, is peat based and a so called 'soil-less' medium. So it has less nutrional content than a regular multi purpose compost.

I do not have any experience growing in this stuff I'm afraid. I just use a multi purpose compost which will feed my plants quite happily for about 3 weeks. I usually re-pot twice during veg though.

Can any pro-mix growers help this chap out with a rough feeding schedule for the medium??

they aren't too early for a transplant, but as you can probably now tell, they are suffering from nute-burn, flush the soil (water it a lot, over and over and over, draining and draining and draining), idea is that it gets all the ferts out.. a plant takes a sec to become defficient, and many novice growers confuse over-fert for deficiency and try to add more fert, thus furthering the problem, thank god you didn't do that. I used a soilless mix my first time and it was still hard to control the pH using additional fertilizers.. I now, for no reason other than that I heard some people have done it successfully, like you, am using a mix with added fertilizers to it so that all I have to feed it is water. FLUSH BRO!

wow that was some powerful nutes to put in there and yeah wrong phase for that mix.I personally would use miracle grow moisture control soil.Its what I have used for soil grows and love it. No feeding just water til flowering time then add some guano with high phos, maybe some molasses or carb additive like sweet or sugar daddy and good to go..

When i first planted my germinated seeds, i started with an "in store" organic soil that didn't list any kind of nutrients and they started getting yellow spots on their leaves. Could this be nute burn as well? I've talked to gardening stores about my seedlings always yellowing and the person told me that most soils have too much added nutes and burn young seedlings. Has anyone else had experience with young seedlings being burnt like this? If so, if i started my next seedlings in a soiless mix, with very little nutrients, about how big should the seedling be until it can handle a transplant into a soil with added fertilizer. I've also read that what could be causing the yellowing is damping-off that show's itself by rotting the stem at the soil line, but the seedling's stems weren't rotting at all; all the stems seemed fine.
I have another question about adding high P ferts to young seedlings (after 1 to 2 weeks) to establish a big, strong root system for vegging. Does anyone know if this actually works, if so what strength should the fert be mixed with water? The first i used said to mix at a rate of 5ml to every liter and i use buckets filled with 10L of water. According the fert i use, at full strength, i should be adding 50ml to 10L of water. BUT, it turned out i was reading off the wrong fert label when i mixed the 10-52-10...thank god. I ended up adding 3.1ml to 10L of water which is 1/16th of the reccomended dosage. Do u guys still think this 10-52-10 at 1/16th strength would burn the plants?