Flowering Problem... Nutrients deficiency? Buds Wont Fill In... Pics Included

I generally use this site as a reference for any questions or concerns I have regarding my girls, but this is the first time I've had a big enough problem to make a direct post. For the past few harvests Ive had a reoccurring problem that only becomes noticeable about 5 to 6 weeks into flowering, and seems to be progressing more extreme with each harvest. My colas continue to fill in less and less with each harvest, the only outside opinion I've had suggests heat stress, but I dont see how this is possible considering I have colas directly under 1000 watt hps' that dont seem to me affected as drastically as some that are getting more or less secondary light from 600 watt hps'.
Ive been working with this current room for close to two years and haven't changed my nutrients or anything for that matter... and whats even weirder is the fact that this particular batch seems to be retaining water at a confusing rate. For instants, I went in to feed tonight, some pots seemed drier then others but in general by the looks of both the leafs and moister/weight of the pots they appear to be capable of going a couple more days with out a feeding, but ITS BEEN FOUR DAYS SINCE THEY HAVE BEEN FEED LAST... but if you look at their leafs they are pointing straight up, as if they had been feed last night. I feel like this has to be a nutrients deficiency of some sort but like I said before, I havent changed anything... Im totally confused and pulling my hair out, any help would be much appreciated.

The strain is Sour Diesel.

Sorry about the picture quality, I turned half my room off so the hps' wouldnt screw the pics up and tried using a flash instead, but that didnt seem to work to much better.View attachment 2010036View attachment 2010037View attachment 2010039View attachment 2010040View attachment 2010042View attachment 2010044View attachment 2010045

I included pictures of colas that have affected the most and least, make note that these are all from the same table, and they are all 53 days into flower.


Thanks for any help in advance.

also notice the leafs, they make it seem as if this girls had been recently watered... at the point that these pics were taken, they had not had anything to drink for 4 nights

When I water I don't really notice a curl, just a perkiness. 4 days to me also doesn't seem too long. that's probably aout how often I water myself, and even then I'm always afraid it's too much. That's in a pretty well managed environment and balanced soil too. I know ppl on 2 day watering schedules and ppl who are upwards of 7days. Depends on drainage and how much u give, not sure what's better. I personally try to stick with the method of flushing about 15-20% through then letting the soil get extra dry. My good friend has success because he hates cleaning with probably watering nay half as much as needed to flush through the soil, and waters more often. It goes against most research I've done but he still seems to grow some beasts.

If your environment is staying the same it ur yields are declining there's a couple things that come to mind but don't take these too seriously. Bulbs may be losing efficiency, it's my understanding that they should be replaced well before they burn out. Another long shot I can think of be ause I personally don't believe in this idea too much, is if u are reckoning clones each run rather than keeping a mother u could be losing good genetics each generation.

Early signs of nute burn champ, just water next feed and back off nutes by 20% after that.

First off, thanks for both of your opinions.
Now, I know it aint my lamps, 'cause I replace those every two harvests, and I do take my cuttings off a mother, so I dont believe that either of those could be a problem...
as for the nute burns, even though I wouldnt understand how this would be possible, I feel like its the most plausible. Couple of questions in regard to the nutrient burn theory. If I am feeding all of my plants out of a reservoir, why do you think some of the plants would be affected more strongly then others? Also, the only change I recently made within the last 6 months or so was a friend from outta of town with more experience then me recommended bottoming my girls while they are in flower (2-3 weeks in) and adding B-1 to their feeding prior to and after cleaning them up to ensure they do not get as stressed.
Does anyone feel like cleaning up the bottoms of your ladies while in flower or the use of B-1 while in flower could be a factor in this, or bad at all for the matter?
Thanks in advance for any help...

......bump

I'm having a similar situation to yours and am shopping around for a solution. I'm at 33 days and they look similar to your, just not really filling in and usual. I flushed yesterday as thats always my first go to solution for anything funny, they almost seemed to take off a bit overnight but I'll have to wait a few days to see. As for cleaning up the bottom, you should always clear the bottom third of the plant in my opinion as no light really reaches down there anyway, plus do you really want to trim one hit nugs? You should do this in stretch though, not after. I've grown SD before and that strain tends to be harder to fill in for me so i don't grow it due to that. I'll be following for more comments and let you know if my flush helped. i actually have some lavender going into the same system with no issues so I think it may just be the strain. My other "problem" strain is wifi. SD also needs to go 10 weeks, I've heard even 11 so mayeb it'll just pop in a week or two. I'm planning on taking my wifi for 65 days so I have even less time than you. Good luck.

wow mangg da leafz are blakc n purple too much n too much p ??? but snowy tho x) easy on da nutz i hope u wont stun growth

peece

edit: looks liek da growth haz stunneded

best bet would be flush one and see if it gets better then do all. My jack herrs looked like this and after a flush new growth is showing up. sucks bc my white widows are thich and long while my jacks are stringy