FEWER plants produce MORE than MORE PLANTS!

J

jdizzle22

Well-Known Member
I think it all depends on your grow space. Many small plants can use your grow space more efficiently then fewer but bigger plants. And sometimes bigger plants are better than smaller ones, it all depends on the dimensions of your grow area.

As far as the lumens stuff goes, yeah riddleme it totally right and shadywolf is in the wrong (but its that same kind of wrong that people who are against legalization are, they believe falsely what they believe because that is all they've ever really heard and been educated on/with)
 
Touchet

Touchet

New Member
I didn't even know people still thought this, hmmpff.

source: http://www.sunmastergrowlamps.com/SunmLightandPlants.html

for you lazies,

PAR Watts for Plants
Watts is an objective measure of energy being used or emitted by a lamp each second. Energy itself is measured in joules, and 1 joule per second is called a watt. A 100 watt incandescent bulb uses up 100 joules of electrical energy every second. How much light energy is it generating? About 6 joules per second or 6 watts, but the efficiency of the lamp is only 6%, a rather dismal number. The rest of the energy is dissipated mainly as heat. Modern discharge lamps like high pressure sodium (HPS) and metal halide convert (typically) 30% to 40% of the electrical energy into light. They are significantly more efficient than incandescent bulbs.
Since plants use energy between 400 and 700 nanometers and light in this region is called Photosynthetically Active Radiation or PAR, we could measure the total amount of energy emitted per second in this region and call it PAR watts. This is an objective measure in contrast to lumens which is a subjective measure since it is based on the response of the subjects (humans). PAR watts directly indicates how much light energy is available for plants to use in photosynthesis.
The output of a 400 watt incandescent bulb is about 25 watts of light, a 400 watt metal halide bulb emits about 140 watts of light. If PAR is considered to correspond more or less to the visible region, then a 400 watt metal halide lamp provides about 140 watts ofPAR. A 400 watt HPS lamps has less PAR, typically 120 to 128 watts, but because the light is yellow it is rated at higher lumens (for the human eye).
"Illumination" for plants is measured in PAR watts per square meter. There is no specific name for this unit but it is referred to as "irradiance" and written, for example, as 25 watts/square meter or 25 w/m2.
Photons
Another means of measuring light quantity for plant growth involves the understanding that light is always emitted or absorbed in discrete packets called "photons." These packets or photons are the minimum units of energy transactions involving light. For example, if a certain photosynthetic reaction occurs through absorption of one photon of light, then it is sensible to determine how many photons are falling on the plant each second. Also, since only photons in the PAR region of the spectrum are active in creating photosynthesis, it makes sense to limit the count to PAR photons. A lamp could be rated on how many actual tiny photons it is emitting each second. At present no lamp manufacturer does this rating.
Instead, plant biologists and researchers prefer to talk of the flux of photons falling each second on a surface. This is the basis of PPF PAR with PPF standing for Photosynthetic Photon Flux, a process which actually counts the number of photons falling per second on one square meter of surface. Since photons are very small, the count represents a great number of photons per second, but the number does provide a meaningful comparison.
Another measure appropriate for plant growth, called YPF PAR or Yield Photon Flux, takes into account not only the photons but also how effectively they are used by the plant. Since red light (or red photons) are used more effectively to induce a photosynthesis reaction, YPF PAR gives more weight to red photons based on the plant sensitivity curve.
Since photons are very small packets of energy, rather than referring to 1,000,000,000,000,000,000 photons, scientists conventionally use the figure "1.7 micromoles of photons" designated by the symbol "µmol." A µmol stands for 6 x 1017 photons; 1 mole stands for 6 x 1023 photons. Irradiance (or illumination) is therefore measured in watts per square meter or inmicromoles (of photons) per square meter per second, abbreviated as µmol.m-2.s-1
The unit "einstein" is sometimes used to refer to one mole per square meter per second. It means that each second a 1 square meter of surface has 6 x 1023 photons falling on it. Irradiance levels for plant growth can therefore be measured in micro-einsteins or in PAR watts/sq. meter.
These three measures of photosynthetically active radiation, PAR watts per square meter, PPF PAR and YPF PAR are all legitimate, although different, ways of measuring the light output of lamps for plant growth. They do not involve the human eye response curve which is irrelevant for plants. Since plant response does "spill out" beyond the 400 nanometer and 700 nanometer boundaries, some researchers refer to the 350 – 750 nanometer region as the PAR region. Using this expanded region will lead to mildly inflated PAR ratings compared to the more conservative approach in this discussion. However, the difference is small.












LMAO! How's that for a cut and paste
 
Touchet

Touchet

New Member
txhomegrown said:
Please post a link to the place where you got your PAR/PPFD meter. I am sure there are a lot of us that would like to have one. Then, your cut and paste expertise would have some practical application.

At least you used a legitimate source. a botanist that post in a regular garden forum (tomatoes)
Click to expand...

I rented mine.

http://www.globeaqua.com/rental_par_meter.html

Hope this clears everything up for ya ;) Riddleme is obviously to busy growing huge buds to bother with this garbage thread. All of you that called him names and talked shit should rep him with an apology. I learned most of this when I was checking into one of these,

http://www.chameleongrowsystems.com/store/CGS-SG-II_MJ13_V7.html


[video=youtube;atrKO1tnNBY]http://www.youtube.com/watch?v=atrKO1tnNBY[/video]

here is some cannabis growing using plasma

[video=youtube;ewAYqO2hHJs]http://www.youtube.com/watch?v=ewAYqO2hHJs&feature=related[/video]
 
Touchet

Touchet

New Member
Shit got reeeeeaaaallll quiet in here, you all must be waiting in the "Bro, I'm sorry, I had no clue" line
 
EvolAlex

EvolAlex

Well-Known Member
Riddleme gots a pretty good rep and if you looka at his treads you will know this guy knows his shit.. i would question his thoughts only to learn further. Riddle i can handle the truth, i aint see you in my journal for a while. GO check em out man they looking great and i owe a lot of that to you for your help. Thanks
 
B

Blaze12

Member
Riddleme has some good info...you can tell he did his research. I think this little high and mighty line "You should consider doing some research on who your talking to???

I am the guy that got 47.2 grams off a 21 inch tall plant with just 97 watts of light" is what bent people out of shape.



thats only .48 g/watt. Mediocre at best.
 
riddleme

riddleme

Well-Known Member
Blaze12 said:
Riddleme has some good info...you can tell he did his research. I think this little high and mighty line "You should consider doing some research on who your talking to???

I am the guy that got 47.2 grams off a 21 inch tall plant with just 97 watts of light" is what bent people out of shape.



thats only .48 g/watt. Mediocre at best.
Click to expand...
I actually got a bunch of rep for that line??? (not that I wanted it, but some folks must have liked it?)

05-14-2010 02:09 AM

Thread: FEWER plants produce...
You know who your talking to?!! lol loved it, learn em brother


and I like being mediocre, was some killer bud (and I'm still smokin it)
 
growcheese

growcheese

Well-Known Member
Little light and lots of plant. You mean something like this? I still think the more light the better when it comes to budding the plants.

1 2.jpg
 
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