New Grower pale and yellowing leaves from bottom up!

[taylastar]

hello all, any help much appreciated.ive got 8 chronic ryder with 3 weeks left until chop.
im using bio bizz light mix and bio bizz bloom and grow hand fed in 11 ltr pots under 600w hps with 4 inch carbon filter temps are 25-27c hitting 18-20c lights off.
so heres the problem....my lower leaves and goin upwards on leaves are goin pale green to yellow(the lower they are the more yellow) my humidity is 50-60% and i only ph my feed sometimes as usually fine at6.5.i thought mite have had nute lock so flushed about 2 weeks ago (4 weeks in) and started nutes again at 0.5 of grow per ml and 1.0ml of bloom, seemed to stabalise for a while but now yellowing fast again.i had a little of this on my first lot which was lowryder 2 but only in the last 3-4 weeks so put it down to just being end ov cycle dying out, these however started signs of yellowing as early as 3 weeks in, still a good yield with 417 g dry off 10 lr2 s but want healthier looking plants.too much nitrogen or not enough ?Thanks guys.

 

[gtron]

The people that are in the position to help you will want pictures as your description of the problem is pretty broad. What medium are you growing in often do you feed, how much, do you go with straight H2O in between feedings, etc..

 

[taylastar]

hi, got a problem with getting pics at mo but i did say using bio bizz light mix as for feeding intervals, as per for hand feed every 2-3 days when pots are light/tops dry, i dont break feed and use only water have been using nutes since day 14.I thought my description was pretty straight forward i.e leaves goin pale green and yellowing from bottom up and all of the details youve asked for are in original post, i.e soil medium bio bizz light mix and bio bizz nutes, strength being 0.5 grow and 1.0 bloom per ltr,feed until slight runoff from pots,i have been told prob too much nutes but the reccomended is2-4 ml per 1ltr so i thought given that there lowryders/autos i start on 0.5 grow and 1 bloom,up to 1 grow and 1.5 bloom now back down to 0.5 grow and still 1.5 bloom.Also have been told not enough, not slowing down atall stiil fruiting well.Thanks to gtron and anyone else with positive knowledge

 

[gtron]

sorry, i only saw the bio bizz nutes when reading the first post.
I will let the experienced growers give you some advice, but you might send an IM to one of the Mods and ask them to move this to the infirmary section as you might get more help than in the general section.

 

[BuddyLove]

well i think the puzzling part is that you say that you have previously grown, and i suppose it's presumed that you have the correct feeding intervals going on, and you're not drowning your plants, or underfeeding. it is harder to speculate, and certainly very difficult to make suggestion without "seeing" your plant. nobody wants to give you misleading advice, so they are hesitant to simply guess, at your risk. good luck with your grows.

 

[Northern Grower]

If you have 3 weeks left, it's coming to the end of it's life. You will want it to start using some leaves like that. It means there is little nutrient left in the grow medium, so the plant is eating itself to finish the buds.

When your plant does this you will be left with a cleaner smoke. No black ash ect.

Unless it's progressing really fast I would say it's a good thing.

 

[Muddy]

I agree with Bailer, it's probably just end of life. But to be sure, how old are the plants and when did you switch from veg to flowering nutes? I don't believe you said in your previous posts.

 

[taylastar]

thanks guys, im using the bio bizz range and so you use both grow and bloom all the way through but introduced the bloom when preflowers became apparant 19 days in, as for overfeeding im pretty sure ive not gone ott as i wait until tops dry and pots light, approx 2-3 days.I was leaning towards underfeeding the nutes after speaking to a few friends but didnt want to over do it, especially being autoflowers but sounds like it mite well be the case.i think personally its hard to determine if there underfed or overfed with all the difference in opinion.it started almost as soon as flowering did so i dont think its the usual end of life shredding as such.i suppose its a little late to start to change it in this case but wanna know for the future, as i said earlier though there still doing as they should and doing it well, will try and get some pics sorted any input gratefull, thanks all

 

[Muddy]

Would still like to know how old they are now. That will give me a better idea of if it's end of life or not. Also, any spots on those leaves or just the yellowing?

Nineteen days is way to early for bloom nutes. By starting them that soon you've probably robbed yourself of a lot of vertical growth, and yield. On the up side, it will shorten the overall growth time and your harvest should be earlier. Check this thread: https://www.autoflower.org/f44/life-cycle-auto-flowering-cannabis-5113.html

 

[taylastar]

cheers geezer, there 7 weeks in, well 45 days exactly