Really need some help, about 5 weeks into flower

[otherwhitemeat]

I had load of problems with these plants from the beginning, they are Top 44. I really think I had some bad FFOF soil, it wreaked havoc on my grow. I have been running the same strain for a year now and NEVER had these problems. A FOAF suggested that I try some LK a few weeks back and that seemed to make things worse, cuasing a whole bunch of leaf drop. It started in the lowers, then moved to the top 2/3 of the plant, I am now losing about 10 leaves a day, fans/immature leaves...everything.

I have what looks to be a P deficiency and probably Ca, but ca't be too sure. Feeding regimen is below, flushed twice already and it doesn't seem to be lockout or overfert, but at this point, I'll try anything. Budset is VERY weak, pistils shriveling, NO trich formation yet. For comparison these plants are usually DONE in 60 days, and these look like they just started at day 40ish.

I use FFOF under a 150MH to Veg. Usually only feed once or twice in veg at 30ml/G PBP Veg with 5 ml/G CalMag, and some Superthrive.

I switch them to 12/12 under a 250 HPS and usually take the Veg formula to week 3-4 of 12/12. Alternating each watering with plain water, about every 2-3 days.

In Flower I usually feed 30 ml/G PBP Bloom and will supplement it the last 4 weeks with Molasses.

In cab temps are around 80 degrees F. Never had these problems before! Could really use some help.

I have been self sufficient for a year now and also provide meds to two Lymphoma patients (best friend's parents) so I have a lot riding on my success. Here are some pics, please help!

 

[10k]

What is your water source ? (sodium in the water can block p uptake)
It doe's look and sound like a p def especially if you're getting leafs that are dropping off when you touch them ?
btw, I would begin some molasses now and DROP the superthrive.

How much superthrive are you giving them when you say "some" superthrive ?

 

[otherwhitemeat]

What is your water source ? (sodium in the water can block p uptake)
It doe's look and sound like a p def especially if you're getting leafs that are dropping off when you touch them ?
btw, I would begin some molasses now and DROP the superthrive.

How much superthrive are you giving them when you say "some" superthrive ?

10k, thanks for checking in! My water source is municipal, basically treated wastewater. I let is sit for 24-48 hours, but that won't help if too much Na. I am collecting rainwater and will be trying that this weekend. I only use Superthrive in Veg, usually at a rate of about 10-20 drops per gallon, very small amounts. I stopped the S/T about a week into flower. I've been using the same water source for a year now, I spose it's possible that the muni change the mix or is getting more salt from runoff.

Last night I gave a very weak foliar feed of Bloom nutes and it doesn't seem to have had much effect. In some searching here, it appears like it could also be an N def as I may not have given them enough food at stretch. I've seen N deficeint plants and it starts at the bottom. My prob starts at the bottom, but is now all over.

Now, I am losing small branches too. You know the ones that hang out under the SCROG and don't do much but produce a popcorn bud? It would appear that the plants are starting to recruit those now.

I am right at the cusp of failure. So ANY ideas would be welcome!

Thanks again for taking a look!

 

[dr-dank]

I only use Superthrive in Veg, usually at a rate of about 10-20 drops per gallon, very small amounts. I stopped the S/T about a week into flower. I've been using the same water source for a year now, I spose it's pos. . .



Thanks again for taking a look!

Yow, that is a lot of ST. Me, I do not useanympre, but when I did I would keep it to 1 drop per gal, as per the directions. I hear that stuff has mega N in it, but hard to say given their label.

Good advice from 10k.

 

[otherwhitemeat]

dr-dank thanks for coming by. I foliar fed them with a weak solution of Veg nutes, then gave them 15 ml/G Veg and 15 ml/G Bloom with a tsp of Molasses per Gallon. They haven't had Superthrive is about a 5-6 weeks and have been flushed twice since. I have been considering laying off that stuff as my buds have been too stretchy in the strecth.

24 hours after the foliar and root feeding, the plants don't seem to be going downhill as much, but they do look like they are not going to make it to full flower. Losing about 5-10 fans each day.

Question for y'all; if the plant was stunted by N in flower, can it recover with a few shots of N and eventually grow a few buds, or is the thin spindly excuse for plants the best I can do. No sense saving if it it cant be saved, but I have some other girls that might do better and I am wondering if these are too far gone. I'll give it another shot of Veg/Bloom in a few days and then return to regular Bloom nute regimen. If they don't start doing something in a week, I may compost and start over.

Looking over my feeding regimen (I take very good notes) I suspect that I didn't have enough N during the stretch. But may have also overapplied Liquid Karma as well.

Live and learn I guess, I am really bummed about this batch and I was going to give alot of it away as I have some buffer stash this time.

 

[otherwhitemeat]

If I had to guess I would say that I was a little low on N based nutes during the stretch phase. When they completed the stretch they were already pretty weak.

I did two feedings with 1/2-1/2 Veg/Bloom, then water...then onto Bloom nutes, molasses. Now I am hitting them with 30 ml/G of Bloom and 1 tsp of Molasses/G with 5 ml/g of Cal Mag. They are still losing leaves, but the buds are actually forming again, it's also swallowing up a small branch or two each week.. Some (though not much) trich development. I am going to give them another two weeks, if they don't look better by then, they are getting chopped and going through the bubble bags and I will have to buy some weed to get me through the lean times.

To everyone that's had a look, thanks!