Hi Im New To The Forum Just Looking For Some Advice Regarding Low Yeilds

richborgo

Active Member
Sounds like your working your but off there. My lights do not come on prior to 7 pm and off at 7 am with massive airflow @ 7000 cfm , that is how to do it without a chiller. Also the parabolic hoods displace the heat ( vertical bulb) to the point that my lights can be placed within 6 inches of the plants and the cover around 45 square feet per fixture , and the yield is around two lbs per light.
 

MacGuyver

Well-Known Member
Sounds like your working your but off there. My lights do not come on prior to 7 pm and off at 7 am with massive airflow @ 7000 cfm , that is how to do it without a chiller. Also the parabolic hoods displace the heat ( vertical bulb) to the point that my lights can be placed within 6 inches of the plants and the cover around 45 square feet per fixture , and the yield is around two lbs per light.
Yea bud, its one of those things i have to get done other wise it will bug me.. so nice to be done now... how big is your room and what sort of fan(s) do u use to move so much air can u post a link with a pic? wow 6 inches vertical light something like this parabolic hood? http://www.midwesthydroponics.com/products/images/lamps_lights/cat_9.jpg

Do you find these hoods its easier to displace heat then horizontal hoods? if so how would that be? do u build stadiums around each light?.... whatever ur doing keep it up the numbers are great :D:D:D
 

MacGuyver

Well-Known Member
hey guys im having a hard time determinign when and how much i shoudl water.... i think i was over watering before so i have cut back.. but i see my plants in veg leafs are down but the soil is still moist... in bloom plants look great i lift the pot its light and dirt is dry... any suggestions.. how are those moisture probe u put in the soil?
 

richborgo

Active Member
Thats the hood, the heat comes from the side of the bulb not the tip, and yes the smaller ones in the center and work your way out from there. Home depot sell huge fans at a cheap price 1650 cfm for 50 bucks and they are relatively quiet. since it rains so much this time of year I use a dehumidifier then reuse the water (27 ppm) to feed again. Very clean water , but my water is great (127 ppm @ ph 7.) anyway. Do you have a good meter??? Like the old Oly beer ads said " It's the Water". I'll send you a pic when I have time, due to my dial up it takes a while! Remote location.
 

kochab

New Member
moisture probes suck pick it up if its heavy leave it if its light water it.

its called hefting. and its hard to do to 30+ plants all @ one time. so a watering meter helps with situations like that and keeps newbs from killing their plants, or making10,000 post saying "how do i know when to water my plant"
 

MacGuyver

Well-Known Member
Thats the hood, the heat comes from the side of the bulb not the tip, and yes the smaller ones in the center and work your way out from there. Home depot sell huge fans at a cheap price 1650 cfm for 50 bucks and they are relatively quiet. since it rains so much this time of year I use a dehumidifier then reuse the water (27 ppm) to feed again. Very clean water , but my water is great (127 ppm @ ph 7.) anyway. Do you have a good meter??? Like the old Oly beer ads said " It's the Water". I'll send you a pic when I have time, due to my dial up it takes a while! Remote location.
haa intersteing dint know that heat only came out from the sides of the light not the tip....yea i ve been reusing water the whole time, even though the tap water is good i feel im doing my part to save the world :D:D:DD:
my ph pen is nutradip trimeter, im goinbg to take to the hydro shop nbext time to get it checked out.. havnt done it in a year... yea whenver u get a chance to please send a link of the homedepot page of these fans..dont even upload the pic.. thanks
 

richborgo

Active Member
just run down to home depot and look in the roofing section as its actually an attic fan, even comes with a temp control. You don't have to pick up each plant , one or two can give you an idea.
 

MacGuyver

Well-Known Member
ok so things were going well.. but now im in week 6 and humidity at night is rising again and powerdery mildew is spreading... wtf do i do???

Humidity i will attack with getting a new dehumiodifer but when it comes to the mildew i have no idea what im doing wrong... i spray in between veg and bloom then spray again in week 3... but im seeing that when the girls start to bud that is when i m having the most probelms the humiodity rises and mildew spreads.... what about those suplhur burners??? when can i use a burner untiell week 5??? and do u just use it once or does it stay on everyday.. the other thing the guys at the hydro stolre told me the spray is better becuase it kills the mildew where as the burner just suresses it.. iis this true.. how woudl u guys attack this issue???
 

tantramastaZ

Active Member
you need some professional advice on the mold or mildew in ur ceilings and behind ur walls and under your floor. these molds/mildews are breathing poison your plants are also breathing. if you can fix that somehow, you'll have the same conditions your friends do.
 

tantramastaZ

Active Member
that many plants in that already horrible environment is exacerbating the issue of moisture and optimal temp for wall, ceiling, floor rot which releases gaseous byproducts your plants uptake.
 

MacGuyver

Well-Known Member
where do i find this professional advice??? and is it worht it or shoudl i pack it up and move on to a new location??? or is there a way to kill this mold by takin all the girls out spraing the room and getting new girls in.. as i have a feelin due to it being a perpetual grow the girls are passing on the sickness to eacthother

thing is is too that ppl have grown there in the past so i wouldnt be suprised if there is traces of the mold and mildew left behind from before..... ive thought of it this way to othat there is so much mold, and crap floating around that the girls are breathing it in and getting sick.... and therby resulating in low yeailds....
 

richborgo

Active Member
Man you sure get some silly advice! Powdery leaf mold is in the air , its coming in through your unfiltered fresh air intake. Sulfur is the key but only in the veg room or at the first couple of weeks in flower. The spray that will work for you now is called soyanara. Completly cover the girls with it and can and has been used right up to finish. Get an air filter!!! THen spray outside the vent area real good with a good fungicide.
 

dankforall

New Member
Another easy thing you could do for a higher yields is increase you pot size. 2 gallon is on the small side. If space is a problem you can use a stacked double pot system.This is what i do.... These are 2 gallon pots stacked with the bottom of the top pot cut out.
 

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MacGuyver

Well-Known Member
Man you sure get some silly advice! Powdery leaf mold is in the air , its coming in through your unfiltered fresh air intake. Sulfur is the key but only in the veg room or at the first couple of weeks in flower. The spray that will work for you now is called soyanara. Completly cover the girls with it and can and has been used right up to finish. Get an air filter!!! THen spray outside the vent area real good with a good fungicide.
cool man im getin one of those filters tommorow... are u sure buners are only good in vegt.. everyone else ive talked to say there good till week 5 of bloom. either way itll be something ill try soon.cheers
 

MacGuyver

Well-Known Member
Another easy thing you could do for a higher yields is increase you pot size. 2 gallon is on the small side. If space is a problem you can use a stacked double pot system.This is what i do.... These are 2 gallon pots stacked with the bottom of the top pot cut out.
yea bud , ive been hearing that form others too but im still not too convinced considering there is lots of dirt remainign at the bottom of the 2 gal pots.... maybe there is some rootboundness on the sides of the 2 gal pots but not towards the botoom... if that make sense in anyway:hump:
 

statik

Well-Known Member
Your main concern is dropping the humidity and raising the temp at night (if night temps can be raised without exceeding 80 degrees). This has two benifits. 1. Fungus cant grow well in 40 to 50% humidity. 2. Have you ever heard of the DIF? I read about it in the Sep2003 Hightimes issue. It's a method of keeping the day time temps and night temps the same. This messes with hormones and inhibits gibberellic acid and auxin, wich both contribute to cell wall elongation. DIF is used to reduce plant hieght and promote denser bud growth. So we may be killing two birds with one stone...No mildew+Denser Buds=Bigger Yield? Temperature influences humidity. The hotter air is the more moisture it can hold. The cooler the air is the less moisture it holds. When temps drop, moisture condenses and collects on walls and plants as humidity rises. Just like dew does outdoors. The amount of moisture air can hold is doubled with every 20 degree increase of temperature. Keep the air moving as much as possible. Space pots so air can flow freely between them. Ventilation is a big factor in eliminating fungal attacks. Oh, and by the way...plants have been infected with powdery mildew for weeks before the first signs show up. So if it's showing up in week 5...its been infecting your plants since week 2! Hope some of this was helpful... (references:Marijauna Horticulture the Indoor/Outdoor Medical Growers Bible and What's the DIF? Hightimes Magazine Sep2003) :leaf:
 

MacGuyver

Well-Known Member
so its week 6 got the new dehumidifer in there plus running 1 of the older one's humidity resulting in a max humidity of 59% and a low of 44%....while temps are 65 night time and day time peaks at 88.....dont know if even another new dehumidifer woudl make a difference.. i think that place is just cursed the humidity will alayws be high...
 
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