How can I Improve my Yield? The answer is...

[fredfarts]

Here is a summary of my room.

1. Type of grow- hydro NFT (Homemade Areoflow tubes)
2. Age and strain of plants Bigbud, Been growing the same stain for 2 years now
3. Type and ratio of nutes -I use Liquid-earth nutes from FutureGarden.com at the rate of 1200 ppm ph of 5.8 Current NPK of: 178-131-327-??

Nitrate N NO3 155
Ammonium N NH4 23
Urea N NH2 0

Nitrogen N Total 178
Phosphorus P 131
Potassium K 327
Magnesium Mg 0?????????? Trying to find out now
Sulfur S 53
Calcium Ca 113
Iron Fe 6.34082
Boron B 0.00000
Manganese Mn 0.00000
Zinc Zn 0.00000
Molybdenum Mo 0.18494
Sodium Na 0.00000
Copper Cu 0.00000
Chlorine Cl 0.00000
Cobalt Co 0.00991
Silicon Si 0.00000
Selenium Se 0.00000
I also add 2 cups of Activator which is Humic Acid and Soluble Silicon.
I have 5 - 4â??x8â?? (32 SQ FT) tables with 4 tubes on each table. Plants are spaced 12â?� On Center
Each Table has Two 1000W HPS Hortalux Bulbs in 6â?� Vented reflectors Actual reflector measures about 20â?? x 16â?� all reflectors are vented outside.
Each Table is filled with new Plants every 2 weeks SOG One time each cycle I fill 2 tables
Plants of Various ages are all feed the same nutes.
I use ONE 100 Gallon stock Tank for the entire room,
I use a Blu Ox Co2 Propane burner
A 24000 BTU Air Conditioner
A ½ HP Chiller
Now the environment:
Room Temp 75-85 Degrees
Humidity 45%
CO2 1500 PPM
Res Temp 68-75 Degrees

Total control is maintained by a computer (Growtronix).
Average Yield is 1.5 Lbs. a light

I have mother plants of witch I take clones every 2 weeks, Veg them for 2 weeks then into the SOG flower room.

Now the Question: I am still not, nor have I ever hit the .5 gram a watt/30 day mark. I feel the environment is dialed in, I am know thinking I need to change my nute formula, or add additives. What can I do to improve yield? I read on here and on other sights all the time I know there is no magic pill. I donâ??t want to buy snake oil either. There must be something I can do to improve yield??? The stain of big bud I have came from Greenmanseeds My friends love it, One maybe 2 hits and they are cooked. They donâ??t want me to change the strain.

and now the answer is?????????????

fredfarts Reviewed by fredfarts on 08-28-2006. How can I Improve my Yield? The answer is... Here is a summary of my room. 1. Type of grow- hydro NFT (Homemade Areoflow tubes) 2. Age and strain of plants Bigbud, Been growing the same stain for 2 years now 3. Type and ratio of nutes -I use Liquid-earth nutes from FutureGarden.com at the rate of 1200 ppm ph of 5.8 Current NPK of: 178-131-327-?? Nitrate N NO3 155 Ammonium N NH4 23 Urea N NH2 0 Rating: 5