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Old 01-03-2008, 06:24 PM
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Any tips for speeding up veg growth??

We're running 400w HPS Hortilux along with 320w of CFL; room is aprox 7'x4', lined with mylar, and has oscillating fan; temp range is aprox 65 dark to 80 lit; soil is equal parts mixture FF Ocean Forest and Promix; using distilled water; organic Pure Blend Pro Grow nutes @ 3 - 1.5 - 4 given at each watering (which happens to be about every 4-5 days); intake and exhaust to keep airflow moving; all are LST'd using the method found in the sticky on this forum-- basically moving them horizontally in a circle around the bucket.

So far, everything is extremely healthy and looks fine to me, but i'm wondering if anyone, from reading what i've listed above, can give any good tips regarding how to increase general growth speed... It seems like we're doing everything right, but that it is simply not developing quite as fast as some of yours are able to. Secondary growth is coming along nicely, but any good tips will be appreciated because this is only my third crop ever.

Thanks!


ps, if its relevant, we're growing Strawberry Haze
 
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Old 01-03-2008, 06:30 PM
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Quote:
Originally Posted by dankfest999 View Post
We're running 400w HPS Hortilux along with 320w of CFL; room is aprox 7'x4', lined with mylar, and has oscillating fan; temp range is aprox 65 dark to 80 lit; soil is equal parts mixture FF Ocean Forest and Promix; using distilled water; organic Pure Blend Pro Grow nutes @ 3 - 1.5 - 4 given at each watering (which happens to be about every 4-5 days); intake and exhaust to keep airflow moving; all are LST'd using the method found in the sticky on this forum-- basically moving them horizontally in a circle around the bucket.

So far, everything is extremely healthy and looks fine to me, but i'm wondering if anyone, from reading what i've listed above, can give any good tips regarding how to increase general growth speed... It seems like we're doing everything right, but that it is simply not developing quite as fast as some of yours are able to. Secondary growth is coming along nicely, but any good tips will be appreciated because this is only my third crop ever.

Thanks!


ps, if its relevant, we're growing Strawberry Haze
optimal growth will occur at

right temps- you seem to be fine, dont get any hotter than 80 though
just enough ferts- fert burn and or not enough fert will mess with the growth
PH- if your ph is way outta wack it can mess a lot up, if you ph gets to high (any maybe even to low, not sure) it can cause nute lock out.
lighting- you seem to be fine on that
water- dont over water
pot size- the more room your roots have to wander the bigger your plant will be.


im sure there is more but if you can keep that stuff under control you will be ok. and the rest is up to the strain.


good luck
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Old 01-03-2008, 06:42 PM
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Sounds like you're right on the money, could be one of those plant genetic situations. I'd say just be patient, though that doesn't really help, lol. Good luck.
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Old 01-03-2008, 10:01 PM
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CO2 is most efficient when used in veg. Plants can grow 1.5 times faster then if they had ideal conditions without CO2. hope this helps
 
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Old 01-03-2008, 10:14 PM
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how do you administer co2 in a soil grow?
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Old 01-04-2008, 12:46 AM
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same as any grow. you buy a CO2 tank from a hydro store or wherever you can get one, purchase a regulater for the tank, a timer to control the regulater and thin plastic air tubing with many many little holes throughout its length. The tubing goes onto the regulater, the regulater plugs into timer and timer into wall, and thats it. The tubing should be set in/over the plants. Do not place tubing under plants because CO2 is denswer then the other gases that make up air. This way when the CO2 is released and starts to drop lower, the plants will be able to use it from top to bottom. hope this helps.
 
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Old 01-04-2008, 02:36 AM
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More light. You've got 720 watts on 28 sq ft, that's about 25 watts per sq ft, and almost half of those watts are CFLs to boot. By comparison, I have about two-thirds your wattage on less than one quarter your footprint.

Are you filling out the whole room? If not then pen the light in, cover some cardboard or plywood with mylar and bring in reflector panels/walls to concentrate your grow area.

And a MH would be better than HPS for vegging. You can get a MH conversion bulb that will work off that HPS ballast.
 
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Old 01-04-2008, 06:02 PM
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toastybiz, thanks for the clarification dude...

no, right now we're not using all the space, the only reason we have a larger room is to allow them to grow to full size and have around a dozen plants, and we will need the whole room once theyre mature... its funny, though, that you mention the mylar-on-plywood idea because we were recently considering that ourselves, guess we'll have to do it sooner than later though.


Regarding HPS vs MH, i know that the MH spectrum is more suited for vegitation but I have heard some great things about the Hortilux bulb that we're using. However, considering there is a hydro store very near to me, it would not be hard to get a conversion bulb... my question to you (or anyone) is whether or not it would be much better than the hortilux? I ask only because we're on a somewhat limited budget and I know the guy at the store will try to convince me to buy.
 
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Old 01-04-2008, 08:56 PM
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I didn't see where you specified your light cycle, sorry if I missed it.

24/0 will make the plants grow faster than 18/6.

Are you using reflectors on your lights?
..use reflectors and enclose the whole grow with mylar like toastybiz said to make efficient use of the lights.
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Old 01-04-2008, 09:13 PM
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i would suggest the co2... it really helped my plants. cheap way is put some dry ice in some warm water and set it in with the ladies. thats my 2 cents. good luck
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Old 01-04-2008, 09:56 PM
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Quote:
Originally Posted by dankfest999 View Post
Regarding HPS vs MH, i know that the MH spectrum is more suited for vegitation but I have heard some great things about the Hortilux bulb that we're using.... my question to you (or anyone) is whether or not it would be much better than the hortilux?
Personally I think a MH would be better, but only you can decide if it justifies the cost for you.
 
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Old 01-05-2008, 01:19 AM
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Well, we already do have the entire room lined with mylar, including the celing. However, we will definitely have to use the retractable cardboard-walls idea... As of right now, a CO2 setup is completely beyond our budget, but by the time we start the next group of babies we will have split the room into a veg and flower side and can buy a MH setup for the veg side...

but for now, I think that by taking toasty's advice about the movable walls it will show some good results
 
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Old 01-05-2008, 03:33 AM
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Quote:
Originally Posted by dankfest999 View Post
Well, we already do have the entire room lined with mylar, including the celing. However, we will definitely have to use the retractable cardboard-walls idea... As of right now, a CO2 setup is completely beyond our budget, but by the time we start the next group of babies we will have split the room into a veg and flower side and can buy a MH setup for the veg side...

but for now, I think that by taking toasty's advice about the movable walls it will show some good results
Yes Toasty is correct make sure you have no wasted Light. if you are growing in a larger area will limited wattage it is vital to reflect light back towards the plants any way you can. And For optimal VEG growth you must I say MUST have a MH bulb, and put the light no higher than 1 1/2 - 2 feet away while Vegging. To add additional Co2 in your room when you are on a budget, Buy dry ice, add a little dry ice in a bucket of water this will generate a exceptional amount of Co2. And as I suggested when we spoke before make Organic teas and promote microbial life in your soil, aerate all of the water used either for feeding or flushing aerate all water used, and foliar feeding.
 
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Old 01-05-2008, 01:31 PM
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I've never supplemented the CO2 but one cheap source is to add vinegar to a bowl of baking soda. It would be a pain in the arse to do this on a regular basis, but not much more of a pain than melting dry ice.
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Old 01-05-2008, 03:54 PM
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Another simple Co2 recipe is 2 cups sugar, 2-3 cups HOTT water, and half a packet of yeast. Mix inside a 2 liter coke bottle. Take a screw and put it into the cap and remove. This creates a small hole for the co2 to escape thru. Give it all a good shake, add a spoon full of sugar and a pinch more yeast, replace cap and sake again. This should produce co2 for 5-8 days. As long as there are bubbles on top of the water you have co2

GL
 
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