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Showing results 1 to 25 of 500
Search took 0.04 seconds. Search: Posts Made By: Undergrounder
Forum: Advanced Discussion 08-20-2010, 01:14 PM
Replies: 18
Views: 3,175
Posted By Undergrounder
The pour-thru test they mention in that article...

The pour-thru test they mention in that article seems wrong... they mention that 2 gallons of water should be poured through the medium and then tested. And this solution is supposed to have an EC...
Forum: Advanced Discussion 08-20-2010, 12:11 PM
Replies: 18
Views: 3,175
Posted By Undergrounder
Here's the article: ...

Here's the article:

http://www.extension.purdue.edu/extmedia/HO/HO-237-W.pdf

I didn't re-read it fully but i noticed they recommend using it to graph the trend of EC and pH over time, not so...
Forum: Advanced Discussion 08-20-2010, 09:27 AM
Replies: 18
Views: 3,175
Posted By Undergrounder
Hi Masdy, i believe the article you're talking...

Hi Masdy, i believe the article you're talking about is originally a Perdue university publication. At least the one i've read was.

First off, the idea that an EC of less than 1 is insufficient...
Forum: Advanced Discussion 08-16-2010, 02:06 PM
Replies: 4
Views: 1,381
Posted By Undergrounder
Yes, it's called Orchidwiz, and it's expensive,...

Yes, it's called Orchidwiz, and it's expensive, but it rocks.

Worth the money if you're into breeding, or fairly serious about collecting.

Wildcat is not as good, but i think it's free now? And...
Forum: Species 08-07-2010, 11:59 AM
Replies: 10
Views: 3,532
Posted By Undergrounder
Definitely Phal. bellina and a beautiful one at...

Definitely Phal. bellina and a beautiful one at that!
Forum: Hybrids 08-07-2010, 11:59 AM
Replies: 9
Views: 3,476
Posted By Undergrounder
Beautiful colour, congrats!

Beautiful colour, congrats!
Forum: Hybrids 08-03-2010, 11:54 AM
Replies: 21
Views: 3,619
Posted By Undergrounder
Wow congrats Rosie! Those are flowering great!

Wow congrats Rosie! Those are flowering great!
Forum: Semi-Hydroponic Culture 07-29-2010, 07:53 AM
Replies: 31
Views: 5,549
Posted By Undergrounder
Ingenious tokyo, i love it! Looks great.. Does it...

Ingenious tokyo, i love it! Looks great.. Does it get a lot of light? It might need a bit more, i wonder if you could attach a short T5 fluoro with a mirror inside a slim casing attached to the top...
Forum: Hybrids 07-20-2010, 12:31 PM
Replies: 13
Views: 2,785
Posted By Undergrounder
Hi Elemore, do you use any gas burning heaters,...

Hi Elemore, do you use any gas burning heaters, or are the orchids near ripening fruit? Have you kept them well watered? Have you kept them under good light?
Forum: Beginner Discussion 07-18-2010, 04:24 AM
Replies: 11
Views: 5,103
Posted By Undergrounder
The roots actually look a little dry, I would...

The roots actually look a little dry, I would water it now and every time the pot looks dry like that. When the condensation has gone and the roots look silvery and whitish green, it's time to water....
Forum: Semi-Hydroponic Culture 07-14-2010, 11:02 PM
Replies: 31
Views: 5,549
Posted By Undergrounder
Don't worry everyone has their own opinions, mine...

Don't worry everyone has their own opinions, mine differ from Ray's in a few points because of my own experiences. But salt buildup is very much the primary concern and the reason we 'flush' the...
Forum: Semi-Hydroponic Culture 07-14-2010, 01:47 PM
Replies: 31
Views: 5,549
Posted By Undergrounder
IMO forget the extra air idea, the roots won't...

IMO forget the extra air idea, the roots won't need any more air than they happily get in LECA. If you use a completely inert medium there will be nothing for mold to grow onto in the first place....
Forum: Contests & Polls 07-13-2010, 06:26 AM
Replies: 30
Views: 14,541
Posted By Undergrounder
I don't know how much space you're allowed, but...

I don't know how much space you're allowed, but this is what i'd do:

- Use the word ORCHID somewhere prominently
- Use strong, contrasting colours
- Use a picture of an orchid that is...
Forum: Semi-Hydroponic Culture 07-11-2010, 03:43 PM
Replies: 31
Views: 5,549
Posted By Undergrounder
In general, constant moisture and organic media...

In general, constant moisture and organic media are to be avoided if you can. Any kind of break down of the media is going to be bad. I wouldn't actually recommend keeping Paph mix constantly moist,...
Forum: Semi-Hydroponic Culture 07-11-2010, 03:11 PM
Replies: 31
Views: 5,549
Posted By Undergrounder
It's called S/H because it is not a linked system...

It's called S/H because it is not a linked system with a shared reservoir/water source, as in hydroponics. Think passive hydroponics on a single pot scale.

The hole is for two reasons: 1. to make...
Forum: Semi-Hydroponic Culture 07-11-2010, 01:02 AM
Replies: 31
Views: 5,549
Posted By Undergrounder
Hi tokyo, the kind of system you want is called...

Hi tokyo, the kind of system you want is called semi-hydroponics, there's a whole part of the forum here dedicated to the subject. You get a pot that has no drainage holes except for a single hole on...
Forum: Growing Under Lights 07-10-2010, 09:15 PM
Replies: 28
Views: 9,294
Posted By Undergrounder
Lopez, R., G. (2003). Effects of Photoperiod and...

Lopez, R., G. (2003). Effects of Photoperiod and temperature on growth and flowering of six orchid hybrids

PM you're email, ill send it
Forum: Growing Under Lights 07-10-2010, 07:31 PM
Replies: 28
Views: 9,294
Posted By Undergrounder
I think 'the whole CO2 issue' they're getting...

I think 'the whole CO2 issue' they're getting around is CO2 depletion, which is not so much a problem for us. We don't need ultra bright, hot lights to grow orchids, and don't need to manage heat,...
Forum: Growing Under Lights 07-10-2010, 05:32 PM
Replies: 28
Views: 9,294
Posted By Undergrounder
By ventilation you mean refreshing the air with...

By ventilation you mean refreshing the air with fans/windows, etc?

300ppm CO2 is what is naturally in the air, and having good ventilation would not increase the total amount available, only...
Forum: Growing Under Lights 07-10-2010, 04:28 PM
Replies: 6
Views: 2,152
Posted By Undergrounder
I also switched recently, mostly to give the...

I also switched recently, mostly to give the plants extra heating at night from the lights, when it can get cold here in winter. Now i don't need to heat at all during winter.

So far the plants...
Forum: Growing Under Lights 07-10-2010, 04:06 PM
Replies: 28
Views: 9,294
Posted By Undergrounder
Completely agree. There's no a priori reason why...

Completely agree. There's no a priori reason why you can't give orchids continuous light. Two important points though..

1. I believe the only major factor to consider is the orchid's respiration...
Forum: Semi-Hydroponic Culture 07-08-2010, 01:01 PM
Replies: 4
Views: 3,130
Posted By Undergrounder
NP. I posted in a thread about using perlite as a...

NP. I posted in a thread about using perlite as a deflasking medium, here i think:

http://www.orchidboard.com/community/propagation/28886-seedling-medium.html#post263600
Forum: Semi-Hydroponic Culture 07-08-2010, 11:46 AM
Replies: 4
Views: 3,130
Posted By Undergrounder
Yes i use 100% perlite, kept constantly moist via...

Yes i use 100% perlite, kept constantly moist via a semi-hydroponic reservoir for deflasking with excellent results. Just be sure to keep it moist and add in appropriate ferts as they grow.
Forum: Hybrids 04-30-2010, 12:36 PM
Replies: 24
Views: 4,418
Posted By Undergrounder
I just saw the expo you're talking about on the...

I just saw the expo you're talking about on the news.. be sure to take lots of photos! i'd love to see them.

P.S. the correct name would be Phal. Ming-Hsing Eagle 'Unimax Romance'. Ming-Hsing...
Forum: Hybrids 04-29-2010, 11:11 AM
Replies: 24
Views: 4,418
Posted By Undergrounder
The most important thing they do is stop it from...

The most important thing they do is stop it from flowering for a number of years so that it builds up a lot of energy, before they let it flower as a very mature plant only.

Some hormones increase...
Showing results 1 to 25 of 500
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