Cree XM-l Panel... Supplementing 730 and up With Halogen

[Rrog]

This is what I'm starting with. The WW and NW. Note the drop as I approach 700nm.



I will be supplementing the red in the AM and PM with the Halogen



The typical 30 minutes at dawn and again at dusk

This is the halogen: http://www.bulbamerica.com/ge-60w-120v-a19-reveal-halogen-2.html?mr:referralID=0e54e6ef-e570-11e2-a969-001b2166c2c0

From bbspills-

Run them 15 minutes prior to lights on then continue them for 15 minutes after lights have turned on. 12.5 hours of LED

Turn them back on 15 minutes before lights off and run them for another 15 minutes after lights off.

Doing so cuts down the dark period and you can extend your lights on time up to an additional 1.5 hours if you so choose.

One fellow, bbspills, gets really good results when he extends his lights on for 13 hours (15 min incandescent + 12.5 hours led panel + 15 min incandescent after lights off) around week 3 of flowering and then he cuts it back to 12.5 the last week or so to (15min prior + 12hour main + 15min after).

 

[tags420]

What's up man,

This is similar to what the induction pontoon does that I have.
I never knew halogens had such a crazy spectrum.

 

[brotherjericho]

Can you be more specific about the phrase "gets really good results"?

 

[Chronikool]

How many halogens are you going to put in?

 

[Rrog]

brotherjerico- "good results" as in nice ripening of the trichs and no extended flower period.

Chronikool- one 60W Halogen lamp to supplement the 300W panel of Cree.

The more I read and ask, the better I like the red supplementation possibilities.

 

[brotherjericho]

So the goal is to increase yield without sacrificing time?

 

[Rrog]

Well, the goal would be to help ripen the buds more, as you would under a HPS with tons of red, etc. It's a quality thing. Not looking for so much red that we get excessive stretch.

 

[brotherjericho]

Tbh, that makes no sense. With HPS, you don't turn any different lights on before and after, you just run straight time.

Some people like to run 13-14 hours of light during flower to increase yield. However, this extends the flowering period beyond what you would see if you just used the typical 12/12. So the idea here is to use far red at lights off to trick the plant into believing it is actually getting more darkness than it is, hypothetically allowing it to finish as it would on a shorter light period.

http://edrosenthal.com/2011/03/ask-ed-marijuana-grow-tip-26-light-deprivation-how-to-ditch-the-tarp.html

 

[Rrog]

Yep. 15 minutes before lights on, and 15 minutes after lights off.

There is a clear division among the far red supplementers. Those who say leave the red on all day and those that just burst in AM and PM. No data to show who's right.

 

[brotherjericho]

The sun puts off 730nm all day long, so there hypothetically should be no problem with 730nm throughout. However, too much far red will cause stretch because the plant thinks it is being shaded by other plants. If there is an abundance of other reds, this should not be an issue, but if you are lacking for some reason, the plants might believe they are being shaded and will put production into stem.

https://www.soils.org/story/2010/apr/mon/early-season-light-quality-and-corn-yield

 

[Rrog]

So you're in the "All-day-red" camp. I can appreciate that.

 

[bbspills]

I would also recommend supplementing some uv. I use the reptiglo 15W 18" t8 10.0 uvb bulb. These bulbs will run in a cheap home depot/walmart fixture ($10). Just take off the plastic cover so the light isn't filtered. I run mine for 4 hours during the light cycle.

 

[Rrog]

I do also. Sounds like the same UV lamp. There's some discussion about too much UV-b reducing yield, so there's a fine line with UV-b

 

[turnip brain]

Related; I have some that plants were vegged indoors for more than a month until close to rootbound in 1 gal containers, then transplanted into 7 and 12 gallon fabric pots, and moved outdoors to the porch for about the last 5 weeks. They have had GREAT growth. The outdoor growing season here is VERY short, the plants will be at risk for freezing come beginning September, and I'd like to kick the plants into flower asap.

I am wondering about rigging up some halogen floods in the roof eaves to run at sundown daily.

Whaddya think?

 

[brotherjericho]

So you're in the "All-day-red" camp. I can appreciate that.

No, I believe far red has not been studied enough, so the most I would do is the short period before and after lights on.

 

[Rrog]

...and that's what he'll be doing this weekend. Here's where he's at after 18 days of flower:




300W of Cree WW and NW

 

[turnip brain]

...and that's what he'll be doing this weekend. Here's where he's at after 18 days of flower:
View attachment 2733751

View attachment 2733752

300W of Cree WW and NW

Lookin' healthy!

 

[Rrog]

For a newb, he's doing great! The soil is really excellent, in 15 gallon Geopots

 

[Rrog]

4 weeks after flip. The red halogen has been running maybe 1 1/2 weeks

View attachment 2751464

 

[jubiare]

I bet the soil is that excellent indeed

I still would have liked you to go without the halogen for the first run for, just to see what was what. But hey that's selfish.

Nice one