Aussie Growers Thread

Hydro4life

Hydro4life

Well-Known Member
Mitchician said:
Mate it looks like she's got a bit of heat stress with the leaves cupping like that and the serrations all tipping upwards, I don't think the burnt tips are nutrient burn, because it seems to be starting with the old leaves which indicates a deficiency of a mobile nutrient, so I've got a funny feeling it's a potassium deficiency, which could actually be a lockout from having too much of something else present. 40ml/9L sounds pretty high if you're feeding that amount quite often, how many times a week do you apply it, and are you just giving straight water in between? When I used the purple powerfeed on my outdoor girls I'm pretty sure I only used 20ml/10L and only a couple times a week, but to be fair I had a slightly ammended soil too.
I think the corrugate pot could be heating up the root zone too much, adding to the heat stress, and causing a lot of water to evaporate, which effectively would increase the strength of the feed you're giving it, because more of the water is going straight into the air, instead of diluting your feed.. If all your plants in the ground are sweet and the only ones looking heat stressed are the ones in the corrugate beds, you probably just need to set up a dripper or something to keep those ones extra watered and the rootzone temps lower. I think plants in the ground can take a shitload more heat than any plant in a pot of any kind, except for those massive fabric pots, because on a really hot day, a pot of soil on the ground will get a shitload hotter than it is actually under the ground. I could be completely wrong though this is all just a guess based on my experience.
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Totally agree with Mitchician, I’ve just had the same thing happen to a few that were in smaller plastic pots, (coco) the ones that were in larger fabric pots were fine.
Most of my experience is with hydro and coco, lowering nutrient strength when the environment is hot and dry is crucial or nute burn and lockout can/will occur and you will get salt build up happening a lot faster.
Flush with straight water and lighten feeding if you haven’t already. 8-)
 
Hydro4life

Hydro4life

Well-Known Member
Saffasteve said:
I'm not sure about a K deficiency, I'd expect to see more interveinal yellowing and chlorosis rather than just damage of the leaf edges
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I’m about a week behind you guys so may be irrelevant now, but I think everyone’s on the right page. To me it looks like a root zone issue most probably caused by excess salt build up. Having the hotter days has essentially increased the strength of feed.
Salt build up can be nasty and show a range of issues similar to these.
It will affect root uptake and show deficiencies, cause lockout, nute burn and a not so happy looking plant.
Roots issues (like root rot) will, if not rectified start yellowing/killing off big fan leaves after you see deficiencies.
If in pots, give a really good flush of straight water then a very light feeding.
I Have no experience growing in the ground but I imagine every watering just use plain water for a while then slowly start adding nutes.
 
DustyDuke

DustyDuke

Well-Known Member
Cleaned the big tent. All the buds bagged and tagged those Uber eats bags come in handy. Installed the new fan it’s a beast even sucking in twice as much air as the old one it’s about a 1/4 of the noise and you can’t here it on normal speed. Really is a ghost fan. I’ve pulled out the old water system. I’m just waiting on my trays for the tents floors they should arrive today or tomorrow. Then I’ve just got to get the buckets in get my watering dialled in with the new halo rings, put the plants in and I’m back. I also ordered a decent dehumidifier I’ll need it this grow.
Does anyone know of a silent or quiet portable air con unit?
 
OzyM8

OzyM8

Well-Known Member
DustyDuke said:
Cleaned the big tent. All the buds bagged and tagged those Uber eats bags come in handy. Installed the new fan it’s a beast even sucking in twice as much air as the old one it’s about a 1/4 of the noise and you can’t here it on normal speed. Really is a ghost fan. I’ve pulled out the old water system. I’m just waiting on my trays for the tents floors they should arrive today or tomorrow. Then I’ve just got to get the buckets in get my watering dialled in with the new halo rings, put the plants in and I’m back. I also ordered a decent dehumidifier I’ll need it this grow.
Does anyone know of a silent or quiet portable air con unit?
Click to expand...
Have a browse at appliances online.com.au of units. Even if you don’t purchase from them their descriptions help. You’ll need one capable of hooking up a remote sensor, as I’m just assuming your not going to place the unit in the tent and you’re going to duct the unit.

Sounds like you’re at the stage of needing some enviro controls too. What are you thinking of using?
 
bursto

bursto

Well-Known Member
DustyDuke said:
Cleaned the big tent. All the buds bagged and tagged those Uber eats bags come in handy. Installed the new fan it’s a beast even sucking in twice as much air as the old one it’s about a 1/4 of the noise and you can’t here it on normal speed. Really is a ghost fan. I’ve pulled out the old water system. I’m just waiting on my trays for the tents floors they should arrive today or tomorrow. Then I’ve just got to get the buckets in get my watering dialled in with the new halo rings, put the plants in and I’m back. I also ordered a decent dehumidifier I’ll need it this grow.
Does anyone know of a silent or quiet portable air con unit?
Click to expand...

which one did ya get, i could only see cheapo ones on ebay,

christmas seed and light shopping got me broke as they probly all i can afford
 
DustyDuke

DustyDuke

Well-Known Member
OzyM8 said:
Have a browse at appliances online.com.au of units. Even if you don’t purchase from them their descriptions help. You’ll need one capable of hooking up a remote sensor, as I’m just assuming your not going to place the unit in the tent and you’re going to duct the unit.

Sounds like you’re at the stage of needing some enviro controls too. What are you thinking of using?
Click to expand...
Cheers I’ll give em a look I’m not really sure on enviro controls. I just don’t know what I am looking at and I don’t want to waste money
I’ll be ducting in to much hassle with the unit in the tent.
bursto said:
which one did ya get, i could only see cheapo ones on ebay,

christmas seed and light shopping got me broke as they probly all i can afford
Click to expand...
Still haven’t decided yet I just want something easy
 
Saffasteve

Saffasteve

Well-Known Member
OzyM8 said:
Have a browse at appliances online.com.au of units. Even if you don’t purchase from them their descriptions help. You’ll need one capable of hooking up a remote sensor, as I’m just assuming your not going to place the unit in the tent and you’re going to duct the unit.

Sounds like you’re at the stage of needing some enviro controls too. What are you thinking of using?
Click to expand...
Most A/C's remotes double up as the temp sensor.
 
bursto

bursto

Well-Known Member
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Last edited:
Saffasteve

Saffasteve

Well-Known Member
DustyDuke said:
Cheers
What climate/enviro control system would you recommend for a 1200x2400 and 1000x1000 grow areas.
I’m looking for plug and play
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Unless you go for a commercial type A/C unit you are going to have to work with the stock controller.
images (4).jpeg
I've got one of these set up to switch on my dehuie and A/C and my exhaust fan runs via a timer.
 
Saffasteve

Saffasteve

Well-Known Member
bursto said:
is this over kill

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Click to expand...
The bigger the unit the quicker it'll deal with humidity spikes, especially at lights out which is what causes the most issues
 
OzyM8

OzyM8

Well-Known Member
DustyDuke said:
Cheers I’ll give em a look I’m not really sure on enviro controls. I just don’t know what I am looking at and I don’t want to waste money
I’ll be ducting in to much hassle with the unit in the tent.

Still haven’t decided yet I just want something easy
Click to expand...
Yeah, it can be a bit daunting when you start looking at environmental controllers, and some of the better priced, and feature rich units are in the US so not always 240vac compatible for mains switching. You’ll find that if you rely on the individual unit sensors, or a couple of different sensor units they’ll fight against each other. Then you’ll want something that does both day n night settings....a lot to think about.
Sometimes it’s better to save n spend the $$ on something decent that’ll last n do exactly what you need, and has local/ish support. Happy to help when you get to that stage .
 
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