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Dunno if anyone will be able to help, ive got this really bad problem on two of my plants....its not far from harvest time, maybe 2-3 weeks.
im not sure wether its worth pulling up the two plants early, as the problem has now started affecting the little bud leafs....
im guessing its nute burn...but my PH is ok...im confused....suggestions anyone??
can you get a pic with the lights off as its hard to see the coulor of green and yellows .easier to tell the problem as differant shades can mean differant problems .have a look at this thread to see it can help . be safe the postman.
http://boards.cannabis.com/showthrea...634#post971634
thanks man
nutrient burn man,
cut the nutrients, how much r u using of what?
Also, what are your temps like? They look like they are stressed out from heat? A combination of overfeeding, heat and lack of fresh air will make them look like that.
temps are good, and air is ok.
im lookng at harvesting in less than 14 days now anyway. looked at the glands today under my scope, about 50% cloudy with the odd one starting to look a bit amber.
im deffinately happy as this is my first serious grow, ive learned a lot, and theres a good ammount of good smelly bud:)
next crop im gonna mess about with soil mix, using an "empty" soil with perlite and vermiculite.
hopefully by having total control of the nutes i can get a better idea of where i went wrong, im also gonna invest in a cf meter.
hopefully that should eliminate 3 deffinate problem ares,
1. soil becoming to dense over time with slower drainage and probably poor airation
2.knowing if the soil has to much nute, i guess this is possible even if ph is ok?
3.removing the unknown variable of using pre-fertilised soil.
its true what people say, you can read a thousand books, but you dont really start learning untill you do it lol
heres some pics of some of the better ones...
Heh heh, you could beat someone to death with those beasts.
That's nute burn for sure, on the salt buildup side.
To avoid that in the future:
a) mix your own soil. But dont' use JUST perlite and vermiculite- you need DIRT. I like my mix of 30-50% perlite, and the rest half and half plain topsoil and composted cow manure and leaf compost mixed.
b) Before you start on your bloom nutes, flush your plants. I can't do that on mine since I use fish and kelp IN the potting soil to avoid yellowing late in bloom, but it looks like that wasn't really an issue for you. So you can flush.
c)I notice that all your plants are different heights, and I'll betcha the one that looks worst is also the tallest. Salt buildup makes plants look worse, faster when they are near a hot light. So anything you can do to encourage even canopy growth in the future will be rewarded.
yeh lol, i missed the soil bit out, i was thinking 60% soil and the rest made up of inert substance, perlite, vermiculite and maybe some kind of fiberous material.
havent decided on ratios yet.
the tall sativa-ish one is actually very heathy, the seeds were from a mixed bag that ive been collecting for a while, thats why the pics look a bit mixed up.
i guess that one is just more tollerant of bad conditions than some of the others.
there is also some seeding, but nothing major at the mo, theres deffinatly a hermie(s) in there but ive not seen any male flowers, they mostlyl either 100% female or very slightly transexual lol.....that is unless theres hundreds of seeds waiting for me underneath those nice thick buds, that would be a real downer....is that likely? visible seeds are probably less than 5% of the whole crop....if it looked worse i think i would have chopped them by now.
next time round, im going to buy some feminised seeds of a single strain from a seed bank, just so the whole thing can be done more scientificly.
this probably sound wierd, but this grow was tottaly spur of the moment, ive grown before but only in a half-assed-never going to happen kind of way.
i was bored one day and i germinated them, and put them straight to soil on a windowsil, with some wierd dream of turning them into bonsai trees or novelty house plants. then a few weeks later, i had some spare cash burning a hole in my pocket....i went down to my local hydro outlet, just out of curiosity, and the rest is history lol
Stinky can you please explain a bit more of what you mean by this:
"Before you start on your bloom nutes, flush your plants. I can't do that on mine since I use fish and kelp IN the potting soil to avoid yellowing late in bloom, but it looks like that wasn't really an issue for you. So you can flush."
ive decieded two pf my plants are getting the chop this weekend, the rest will follow, as and when they are done:)
I think stinkyattic means that because they are using Organic Soil Additives/Soil Amendments (eg Bat or Sea Bird Guano etc) that are active within the grow mediumn they will find it diffucult to flush those Nutes out. These Organic Soil Amendments/Additives are constanlty being broken down in the soil. It is not possible to dilute these additives because they are physically withing the grow medium and not exclusively added via irrigation.
A Nutrient or Fertiliser consist of elements that are chemically available to the plant once added via irrigation. There is no time spent breaking down compounds. This means that if you add too much Fertiliser you can dilute that over concentration in the soil by flushing with ph balanced water and/or a very very dilute/light bloom/nute (say 10-20% of recommended dose) feed.
ahh, right, i understand now, thanks, spirit:)
i didnt realise that. That kinda adds a whole new dimension to consider....
i never really considered organics......must do some reading...
Yeah, SpiritLevel explained it perfectly.
When you do your next soil mix you don't have to add a fibrous material. Just go with the perlite/vermiculite. As something like coco fiber breaks down, it can hold moisture too much, making it harder to flush, feed, etc.
I like my soil mixes to be light and friable.
Believe it or not, I am certain the soil mix I buy from the growshop is second hand. I like to work my fingers through the bag to ensure there are few lumps and bumps before potting. Not only that, I like the touch of some mixes and I can more or less feel how a plants roots will feel when the are bedded in it. I've found shreaded roots and clay pebels in tens of fresh bags of special mix. It does the job, but I do wonder if I can recycle my own soil with the correct additives and methods.
im sure it can, like cutting up old root balls and mixing them up with other stuff...food scraps etc. kinda like normal garden composting i guess...
im no expert though, i couldnt grow a good rose bush or anything lol