Compound HQ's Grows
- Thread starter DoubleAtotheRON
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DoubleAtotheRON
Well-Known Member
I noticed that they weren’t growing like they should ... they didn’t look bad, but I thought I’d stab the soil. I got an average of 5.2, so I thought I’d spearhead this problem before it starting affecting the plant material. They look much happier this morning.
DoubleAtotheRON
Well-Known Member
IDK.
IDK. I like to start with a clean slate. I know this mix very well, and that’s the only caveat to it is ph crash. If you catch it in time and do a hard correction, it’s a great medium.
Been using Sunshine mix#4 forever always consistent
DoubleAtotheRON
Well-Known Member
You talking about this?
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Keesje
Well-Known Member
Why use soil at all?
IMO a commercial grower has more benefit by a clean medium that he can control.
In addition, at some point even the best 'medicine' cannot prevent a 'disease' if the circumstances are very unfavorable.
IMO a commercial grower has more benefit by a clean medium that he can control.
But even with a device to prevent Botrytis and Mildew, you shouldn't push things to the limit. Firstly, not much research has yet been done to what extent oxygen compounds actually prevent and combat these fungi.
In addition, at some point even the best 'medicine' cannot prevent a 'disease' if the circumstances are very unfavorable.
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Horselover fat
Well-Known Member
I'm not a commercial grower, but having grown one full grow in dwc I have to wonder why I didn't switch earlier. No medium to waste and ec meter readings every morning tell me how the plant is eating. Not that I don't look at the plants and feel the leaves too. The nutes I use seem to buffer ph well enough so I don't measure it regularly.
I wonder how spore free you could maintain a sealed room. Lots of hepa and uv filtration.... "air locks" etc.
Horselover fat
Well-Known Member
Sure. Single buckets would be a too much work. You could automate it if you wanted to follow each bucket, but rdwc using the same cut would work for monitoring ec too. Loads of great systems out there. Gotta find the one that works for your situation.
Keesje
Well-Known Member
Still, there are no commercial growers (exceptions of course) who will use either dwc or rdwc.
Too much hassle, to complicated, to much problems.
There are growers who use large basins to grow vegetables and herbs on styrofoam boards.
Some of them use venturi. But that is most of the time for mixing up the water.
But never seen airpumps or something like that in a commercial greenhouse.
Oxygen gets in the water by air pressure and replacing the upper layer of water now and then.
Too much hassle, to complicated, to much problems.
There are growers who use large basins to grow vegetables and herbs on styrofoam boards.
Some of them use venturi. But that is most of the time for mixing up the water.
But never seen airpumps or something like that in a commercial greenhouse.
Oxygen gets in the water by air pressure and replacing the upper layer of water now and then.
DoubleAtotheRON
Well-Known Member
Actually, there’s been a lot of research with the AirROS. Tyson has been using them in their processing plants for 15 years. This is not a new gadget, but amazing technology. Check out their website. www.airrosshield.com
And true, a DWC system would be a lot of hassle when growing a 100 plant count room. Not to mention the cost of setting up such a system. Pump failures, cleaning out the whole thing after a grow, just seems like a pain in the ass. We don’t waste our soil at the end of a run, we compost it and use it around the property to fill in low spots (we have 12 acres of land), and also use it to plant new trees, grass beds, etc. Soil is pretty cheap, about $600 a run for C25 or BM7. I feel like the AirROS is doing its job. When I’ve been working in there for a couple of hours, my clothes smell like ozone. .. smells fresh and clean!
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DoubleAtotheRON
Well-Known Member
Grow 6 update. Things are looking good after the ph flush. They really bounced back, and were simply starting to get locked out. Back on track tho. I could tell something was wrong when the RH was struggling. They were locking up and not transpiring. Planted 8/15. 
I would lower the light down a bit too, pump more co2 1200ppm those ladies will explode.
Here's what I have to deal with lol 12 lights 100 plants. I wish I had more space to walk around. Its old picture from last week. I'll post a new one today keep forgetting to take a picture.
Here's what I have to deal with lol 12 lights 100 plants. I wish I had more space to walk around. Its old picture from last week. I'll post a new one today keep forgetting to take a picture.
DoubleAtotheRON
Well-Known Member
You run 1200ppm at 5 weeks veg?
I run Co2 in Veg and flower 1200ppm
Keesje
Well-Known Member
But it is research done by the manufacturer.
And maybe I'm a bit too suspicious, but I don't always have a lot of faith in that.
Not because they lie or withhold the truth.
But because they often don't do proper research.
Or because there are other factors that influence the research.
I would love to see a study done by an independent institution under scientific supervision.
I'm not saying the device doesn't do what the manufacturer says it does.
But I would still like to see a little more evidence concerning the botrytis and mildew.
Bothrytis and mildew costs the agricultural industry several millions of Dollars/Euro's each year.
I just wonder why nobody came up with a similar device in all these years?
If they would have invented it last month... ok. But you are saying that they are doing tests with it for many years.
There is research done on the use of ozone for preventing diseases and the results are not clear yet. Manufacturers say of course they do work, but scientists say there is no finale conclusion yet. Ozon for example also can have influences on other factors (for example breaking down iron chelates).
It is an interesting field, and I welcome every company that is battling it.
It's nice that your clothes smell fresh.
But I wouldn't buy the device for that. In addition, there are also cheaper ozone devices for sale. But why hide the scent from a legitimate company? I would only buy the device to prevent botrytis and mildew.
But I think it is still too expensive for that.
Let me be more correct: If it would prevent botrytis and mildew, it is not too expensive. Not at all.
But for a device that in my eyes has not proved itself in a scientific way, it is.
Maybe it is too expensive for what you get, but that is irrelevant. Research and development cost a lot of money.
It is also not yet available in the European market.
I can buy it in the US of course, but I would like local warranties under EU law and service close by. Not across the ocean.
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