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- fine-ass '22 harvest!
a low of 5c this morning...low RH% is a possible mitigating factor too, bad VPD (read here)... what's the day T been?
Looking great Smokey..
Hey Waira mate Thanks. VPD is likely an issue here. Today was 5c to 22 c humidity 27-39% ( using the cheap gauge), and it does seem to reflex that with the weather stations at the weather service for around my area. The girls tent the lowest ive seen it is 10.5c, this morning it was 13.3c, then out at 8am, air temp would be under 10c maybe, but they go to the sun which would warm them up a bit, could delay taking them out though.Hey Smokey! ..... let's see what's what here,...
That wetting agent, that's really a multi-product, made of many things, most they don't say specifically - ... not a bad thing, but maybe not good either?
I dunno WTF they are talking about with that "incompatibility" issue, I'd get on the phone to them about that! Weird ads hell frankly, the last thing it should do is cause cross reactions with common sulfate compounds,... Do they mean gypsum (CaSO4), other micronutrient sulfates? (my fav' Earth Juice Microblast is mainly sufate based compounds)... You'd think the humic/fulvic would prevent that,... One would think this product isn't meant to screw up S availability! They got some explaining to do....
The whole plant color fade, that's less clear,... I can't tell is it worst at tops? S defc. is the one that usually does this, whole plant thing, but tops worst and first usually,... P defc, or a co-defc. with something else can do this too, but i keep thinking something else is causing a bottleneck here,...
-- in-pot pH is always where you start first, that must be known to eliminate lockout, and help confirm it's more likely a simple lack-of type defc.,... not lock-out or an antagonistic uptake issue... Have you seen page 2 in the Defc. Pic Depot and the nute excess charts? I don't think you have an excess issue, but....** (see below) ... Do you have a soil pH probe, like Hecno's? That's the same unit as the Accurate 8 I tout....
--- some N defc. happening too, partly normal, but most often it hits low down, draining individual leaves first, not paling the whole plant... it's readily mobile
-- how cold has it been at night? Low T's, even in the low teen's C can retard uptake/transport... how fast they warm up is also a big player...
-- I see you do have Ca, Si going in,... B is another very very important micronute, it's a major facilitator like Si and Ca for uptake and transport.. Does anything you've added have it? An easy fix that, Borax! ... ** also, what you've added, how much, how often should be reviewed for me,..
-- large plants in fairly small pots relatively speaking are more prone to nute draining/holding issues.... you have a lot of biomass up top, and if that gets too far off balance, the roots can't keep up... makes for touch, easily triggered defc, issues...
-- any inoculants going in to support the soil herd? In organics, that herd is CRITCAL...
...not surprised, she was hanging by a thread,... annuals want to die after blooming too, afterall! ...certainly root pests/rot will make that unstoppable regardless..
Get a bloody soil ph meter mate .
Thanks Waira mate. Very very slight tip burn on LH, BBK, SLH DP, may be normal even, of course dead yellow leaves tip burn on them as they die off.Smokey, any sign of tip burn? It might be worth a try to up the feeds some, a more balanced NPK with the Searles and the PK product you have... BUT right now, organic stuff will be slowest of all to work, so keep that in mind,... a little synthetic isn't going to screw anything up, and it's right-now available...
T is cool enough to impair nutes. but if they warm up soon enough, that shouldn't be to bad...
How much/often does the GoGo get applied? It's got a nice list of nute elements, so regular use should be enough... Borax, maybe1/4tsp/gal, use alone or with a pure humic-fulvic, IF it's determined necessary...
Sativa/Haze's are notorious for being more bitchy about nutes for sure generally speaking,...
...pH in soil is subject to many altering factors, the buffering built into it may not be enough, often isn't....
It's low RH%, but not critically so, especially at that T range... look at the VPD chart in reference,.. if pots are drying well enough, they are transpiring OK during light hours; stomata tend to close at night because photosynthesis is halted, no need for CO2 just then, and so transpiration is running very low...
Hey Tee, Thanks Bro, is rather sad to see them like this, but once we get it right, hope all smooth sailing again to the end.Mate, I feel for you, such lovely huge plants and now the stress of the yellowing leaves.... you have some great info from @Waira and @hecno
As you well know, I'm no expert, but this is what I would do....
feed them as normal one more time, then take the first 250ml of run off and measure the EC and pH. If the EC is higher than what went in, then I'd flush them for a couple of days, checking the run off EC until it drops below what you were feeding them.
If the pH of the run off is off, then pH adjust the plain water flush to push the soil pH in the right direction. I had to make up a Molar solution of Bicarb (ie so no more bicarb can be dissolved in it). Be prepared for more yellowing though as the plant 's not getting the full nutes she's after.
Once the EC's where you want it, resume normal feeds.
BUT to be honest Smokey, it looks to me like these are old leaves that have served their purpose. All the action is gonna be higher up, so having the plant waste it's energy on what's happening down below will not serve any purpose....cut them off and fuggedabowdit!
Fuck its been cold on the GC these last few days, so good job you got a heater in. Are you insulating them from the cold floor? Also be sure to check your feed temps.... I had a shock when I spotted my water was at 14°C just as I was about to feed them the other day..... I had to bring it upto 21°C using a couple of wine bottles filled with hot water.
I use the Willy Weather app, it's reasonably accurate... much better than the Apple weather app here I find.
Anyway Bro, hope you have a good one... I reckon you're doing well, so keep it up!
This is why my stoned ramblings are of no use to you mate.... I use Coco... so flushing and checking EC is easy cos it's an inert medium. Soil on the other hand has a nute content, so measuring the run off EC isn't as simple. I wouldn't know what a good EC to go for as each plant will demand different levels of nutrient depending on the growth stage.Whats a good EC value T for go for?