I just ran 4 sour bubble crosses & kept my EC no higher than 1.5 max . i did have to add some calmag to the mix which i don't usually have to do , but the SB are Cal hogs , but 2ml per gallon fixed em right up .
1.0EC in veg & 1.5 in flower & they were really healthy & happy . produced some really quality & heavy buds . in fact my Gorilla bubble cross won pic of the month for March
Using blue buckets on re-circ and when I water it's from the top now with watering gushing out of the bottom of the buckets. In other words tons of run off. But it's re-circ so I'm not losing the nutes.
In veg , yes i go through wet & dry cycles for the roots t expand . but once they are , i feed daily to runoff . i veg in 5" pots & transplant them into 3 gallons for flower . so thier in the 5" pots for quite awhile & need that daily feed so they don't dry out . but 1.0 to 1.1 has been plenty to keep them happy . maybe my use of MBferts vitamin/hormone boost in veg only has alot to do with how healthy & happy they are .... but in flower , its V&B only !!!
& flower gets auto fed with pumps & drip rings once to twice a day to runoff .
i'm just finishing up a Bohdi's White Lotus run on nothing but V&B for flower . they're at 62 days under a 600 watt horti in my 4 x 4 room .... what do you think ???
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I think it looks really good . How manyplants under that 600? Expected yield? Which formula you using? What about base water? You've got wonderful senescence there BTW. I usually end up with some fried leaves by the end.
4 plants in 3 gallon smarties , yield , hoping for a pound or better . my water is RO/DI ...0 water & i use the RO formula . 10 to 14 days on plain RO water & they're dieing on the vines by finish .
I'm sure if I used larger pots and handwatered, I could get by with quite a bit lower ec. However, I'd use a lot more water, and spend a lot more time applying said water. The blumats and small pots are just so much easier for me. I work full time, and like to have a life, so garden time needs to be kept to a reasonable minimum. Also I've only got access to 1 side of my tent, so it's a real mother to hand water.
I hear ya , i'm set up with pumps & drip rings , even on my big veg . this time of year i'm gone for 4 days at a clip at camp , so i need the rez's to handle that time gone & my 18 gallon totes do just fine . the small stuff i put in trays & just fill the tray so they bottom feed while i'm gone , other wise i'd just hand feed them .
Chris at HR advised me to keep upping the dose weekly in veg until the first signs of overfeeding, then consider the last weeks dose to be the "max" dose. I got up to 1.6-1.7 in veg, with 0 signs of trouble. Only lush, vigorous growth. I was scared to go above 1.8 in flower(~1.5ec v+b) + (~.3ec +size), but still had excellent results. My senescence wasn't as nice as yours though. I had a fair amount of necrosis on the bigger fan leaves. At the time I thought maybe too much food/burn, but now I'm considering the possibility of late flower deficiencies. I going to feed for 7 weeks, flush for 1 on this run to see.
i'm just the opposite , i feed low till i see a def , then bump it if its needed . i was feeding up to 2.0 for along time , till a buddy showed me proof of what happens with a lower feed & it made a believer out of me on the first run ..... my yield almost doubled on the same strain .
My theory is that the plants need the higher EC's due to my style of grow. I've got relatively large plants(4-5' finish), in relatively small pots(~1gal), using relatively small amounts of water( .25-.40 gallons/day, no runoff) growing in very bright conditions(2-1K's in a 5x9 tent). The only time I've had a problem, is when I tried to run the lower EC's that most growers are using. However, I would never handwater with the kind of EC's I use with the blumats. In any event, I'm still in the learning curve for blumats , v+b, and growing in general.
Looking really good dan! I like your set-up. I wish I could get by with 4/1K but I just don't see the SourBubble yielding much more than 2oz/plant.
yeah with sour bubble i'd run 9 or 12 per light depending on how long they had to veg .
I'm going to take the "less is more" approach with my most recent cuttings. They're currently under the 480w t-5 array, 4.5" pots ~3"tall, and I'm going to feed at .8EC for now...sound about right?
freshly rooted clones , .8 is good . once they get some roots established you can go to 1.0 . thats pretty much what i feed all my veg .
You're obviously having great results,definitely better than mine, so I've got to wonder..."Am I overfeeding?" I used HD last run, and got up to 1.8 EC through most of flower. I got 1.25#/1K, which is according to BOG is pretty normal. The budset did seem a little lackluster, although the final product was quite popular.
This run, the plants are at ~3', and I'm feeding at ~1.5 at the moment. Half of the plants look fine, but the other half have what appears to be various deficiencies. I saw various, because diagnosing sick plants has never been my forte. I'd always been told that v+b will manifest all sorts of deficiencies when you feed too low, and burn when you feed too high. I've also been told that SourBubble is a "very hungry plant". The current run starting showing what looked like deficiencies about 2 weeks after being placed in the main tent(still in veg), so I upped the feed from about 1.2 to 1.4. Two weeks later, and I'm still at half and half looking good or bad. I'm starting to wonder if I've overfeed, and locked them out. I pushed them quite a bit harder last run, but that was with the HD formula.
I went through last night and pruned them in preparation for flower, as they're almost at the "too tall for my tent" stage. I've got some pics of various leaves, which I'd like your opinion on. I turned the lights back to 12/12 last night, but I'm starting to wonder if it was a mistake...Starting to wonder if the deficiencies are from "lockout" instead. Here's the pics, any thoughts or advice would be most welcome.View Image View Image View Image View Image
Gg4 fed 2.0 ec HD with about .2 ec of tap/hard vb added for ph down grown in fwok
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I don't see lock out ,
I'm seeing a couple things wrong in them leaves ... cal def , mag def , phospherous ...... with the HD formula , were you mixing & feeding right away ? i noticed the short time that i used it , the PH would climb over night .but your not using the HD this time right ? what formula are you using ??? & whats your waters EC ? the reason i ask is cuz it looks like its a PH problem in your plants . if its not in a good range then nutes can't get to the plants properly . coco & hydro is a PH of 5.9 where soils is a 6.5 ....
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1.2 to 1.4 is good for a hungry SB ..... check your PH going in & coming out , they should be close to the same measurements . also check & recalibrate your meter if you use one .
are you in soil , promix , coco .... what ?
the feed strength looks good to me , i'm thinking PH is outa whack .
heres the leaf chart i use for defs ....plus the sick plant thread ....
https://www.icmag.com/ic/showthread.php?t=231387
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Good call on the ph dan I had to clean and recalibrate my ph meter, as I hadn't used it in a few months, but I found my res to be sitting at ~5.5ph. Just low enough to start causing problems with uptake. I adjusted the res up to ~5.9. Next I made a fresh bucket of mix(1.1EC) and measured ph...~5.6. A small dash of ph+ brings it to ~5.9. Hopefully the corrected ph will result in a quick turnaround for the affected plants.
I'll be keeping a closer eye on the ph from now on. My first v+b run(RO), I checked the ph all the time. It mixed and held very steady ~5.8 for the entire grow. The last run(HD) I stopped checking about half way through. It was also mixing and holding steady at ~5.8. I've Just been using my EC meter since. From here on out, I guess I'll go back to checking the ph as well as the EC. Wonder why it's no longer mixing and holding at 5.8. The low ph also explains why my cuts are starting so slowly.
I'm growing in Aeration Mix, which is primarily coco and perlite. My source water is tap(~600ppm), which I put through my RO machine and get 0ppm. I'm using the RO formula this run.
I'm currently 2 days into flower, what do you think would be appropriate feeds for each week, with the SourBubble?
Thanks again for the good call on the PH
I'm recirculating so for every gallon of nutes I use I am recapturing the runoff and cut it back down to 2.0. My water is .3 ec so I'm using 1.7ec VB at Rez change. So all in all it is most likely much more efficient then drain to waste at 1.5 ec in coco. I agree with jay jay, environment and Rockwool let you feed heavier and faster. This run looks like it's going to be huge. That pic was yesterday and it was just finishing week 1I have to think your wasting nutes, my tap water is 200 to 300 ppm, with 1 table spoon of HD in a 5gl bucket im getting 800 ppm, mine are much thicker, shorter node spacing also bushier. in flower I add one teaspoon of plus size at start of flower, 2 teaspoons start of week 4. there stacking much tighter, if its possible take one plant and do a side by side with lower ppms and what your doing.
I'm recirculating so for every gallon of nutes I use I am recapturing the runoff and cut it back down to 2.0. My water is .3 ec so I'm using 1.7ec VB at Rez change. So all in all it is most likely much more efficient then drain to waste at 1.5 ec in coco. I agree with jay jay, environment and Rockwool let you feed heavier and faster. This run looks like it's going to be huge. That pic was yesterday and it was just finishing week 1
what im using now is most def not cheaper,it just works better for me,Thanks for the reply. Good to know others are needing higher feed rates too. I measure rather than weigh, but the 1-1.25 tsp/gal I max out at is close to what you're using. FWIW, a 5lb bag easily lasts an entire 90 day cycle(veg/flower) for my 2.5Kw, 2 tent grow. What's out there that's significantly cheaper/easier to use? I'm running ~$100 of nutes per cycle. Nothing I've tried that WORKED was any cheaper, most quite a bit more. I did try maxi once, but it didn't work well with my water, tap or RO
you could very well be right, I meant no disrespect, I have never played with RW.