EasyCheesy
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I'm hoping someone can help me.
I've got 6 Ugorg#1's in 10L coco/perlite hempy buckets They're in week 5 of flower. I'm feeding them Canna Flores hard water nutrients at around 1.1 EC. This includes my base tap water EC, which is around .6 and around 7.8 ph. So they're not being fed a large amount - WAY lower than the feed chart, and they're big plants. They were vegged for around 8 weeks, most of which was in little 1L coco/perlite mini hempy pots under a T5, watered every day always with run off. They were perfectly happy during veg. I moved them into the flower tent (450w qb) and into the 10L pots. I was watering every 2/3 days (always with run off) until I saw the roots hit the res, and from then on then on I was watering when the coco felt 'light' and the plants were just starting to wilt a tiny bit (basically following soil watering methods, the wrong move now, I know). I defoliated them and flipped them to flower once I saw the roots had reached the res and then a week or two later I started to see some weird issues popping up. These are pics from that time -
It immediately looked like PH issues to me, so I checked my PH pen calibration and flushed the plants with plain ph'd water then refed with a light feed. Seemed to help a bit but I was still seeing a few of the same issues a week later, so I flushed again. This time I checked the runoff PPM at the start of the flush and it was pretty close to what was going in, so no salt build up it seems. The PH coming out the runoff hole is pretty much always the same as the PH going in, as you'd expect with hempy buckets. After the second flush it did seem to calm right down, although I think I also backed the lights off a bit at this point too. They've been growing well since then, but as I was working the ec up into flower I think I reached about 1.2ec (including my hard waters base .6ec) and I started seeing some tip burn so I've backed it off to around .9ec, but now I'm seeing this issues popping up again. A recent pic -
So it seems to get worse then feed is reduced, and the lights get closer. Seems like a standard deficiency I guess? The thing is they really don't look underfed, they're a very rich green and they've got a bit of tip burn, and I'm scared to up the feed in case I burn them badly. Here is a pic of the one of the actual plants a few days ago (D29 F) for context, and a bud pic just because :) -
So far I've seen these necrotic stripes attributed to -
K Def
Calcium Def
Mag Def (my water is hard but high in cal but not mag, and I'm using hw nutrients, so this could make sense, I did add a teaspoon of epsoms the other day but I can't say if it's made a difference to be honest)
Light Burn
Wind burn
Nute burn
Sigh.
A nutrient deficiency seems very possible considering the low EC I've been giving them (although calcium def feels unlikely with my 300ppm water that's high in caco3). It's strange that they were taking the full strength veg nutes fine though and showing tip burn at like 1/4-1/3 strength flower nutes. Perhaps it's the much larger pot/res size.
I also wondered if the issues were caused by letting the coco get too dry between waterings (only the very top was dry, but it was noticeably light) but I've upped the watering frequency and it doesn't seem to have helped.
Wind burn is also possible as I have three oscillating fans in there and they're quite strong. If this is all due to windburn I will kick myself!
I'm really hoping I can get some advice as I've still got a good month of flower left and I don't wanna mess it up. It's my first grow with synthetics and first time using coco and hempy buckets.
Any ideas anyone? @Aqua Man I hope you don't mind me tagging you in?
Thanks!
I've got 6 Ugorg#1's in 10L coco/perlite hempy buckets They're in week 5 of flower. I'm feeding them Canna Flores hard water nutrients at around 1.1 EC. This includes my base tap water EC, which is around .6 and around 7.8 ph. So they're not being fed a large amount - WAY lower than the feed chart, and they're big plants. They were vegged for around 8 weeks, most of which was in little 1L coco/perlite mini hempy pots under a T5, watered every day always with run off. They were perfectly happy during veg. I moved them into the flower tent (450w qb) and into the 10L pots. I was watering every 2/3 days (always with run off) until I saw the roots hit the res, and from then on then on I was watering when the coco felt 'light' and the plants were just starting to wilt a tiny bit (basically following soil watering methods, the wrong move now, I know). I defoliated them and flipped them to flower once I saw the roots had reached the res and then a week or two later I started to see some weird issues popping up. These are pics from that time -
It immediately looked like PH issues to me, so I checked my PH pen calibration and flushed the plants with plain ph'd water then refed with a light feed. Seemed to help a bit but I was still seeing a few of the same issues a week later, so I flushed again. This time I checked the runoff PPM at the start of the flush and it was pretty close to what was going in, so no salt build up it seems. The PH coming out the runoff hole is pretty much always the same as the PH going in, as you'd expect with hempy buckets. After the second flush it did seem to calm right down, although I think I also backed the lights off a bit at this point too. They've been growing well since then, but as I was working the ec up into flower I think I reached about 1.2ec (including my hard waters base .6ec) and I started seeing some tip burn so I've backed it off to around .9ec, but now I'm seeing this issues popping up again. A recent pic -
So it seems to get worse then feed is reduced, and the lights get closer. Seems like a standard deficiency I guess? The thing is they really don't look underfed, they're a very rich green and they've got a bit of tip burn, and I'm scared to up the feed in case I burn them badly. Here is a pic of the one of the actual plants a few days ago (D29 F) for context, and a bud pic just because :) -
So far I've seen these necrotic stripes attributed to -
K Def
Calcium Def
Mag Def (my water is hard but high in cal but not mag, and I'm using hw nutrients, so this could make sense, I did add a teaspoon of epsoms the other day but I can't say if it's made a difference to be honest)
Light Burn
Wind burn
Nute burn
Sigh.
A nutrient deficiency seems very possible considering the low EC I've been giving them (although calcium def feels unlikely with my 300ppm water that's high in caco3). It's strange that they were taking the full strength veg nutes fine though and showing tip burn at like 1/4-1/3 strength flower nutes. Perhaps it's the much larger pot/res size.
I also wondered if the issues were caused by letting the coco get too dry between waterings (only the very top was dry, but it was noticeably light) but I've upped the watering frequency and it doesn't seem to have helped.
Wind burn is also possible as I have three oscillating fans in there and they're quite strong. If this is all due to windburn I will kick myself!
I'm really hoping I can get some advice as I've still got a good month of flower left and I don't wanna mess it up. It's my first grow with synthetics and first time using coco and hempy buckets.
Any ideas anyone? @Aqua Man I hope you don't mind me tagging you in?
Thanks!