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| Forums > Marijuana Growing > Growing in Greenhouses > Does my Plastic get good Light Penetration? | ||
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#1 |
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Member
Join Date: Jun 2006
Posts: 182
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Does my Plastic get good Light Penetration?
I just built a 8' x 16' half - hoop house and I used 4 mil plastic sheeting from home depot from the paint section. the clear-ish plastic drop cloth. it comes in a 10' x 25' roll... anyway
I have some Mandala # 1 , greenhouse's A.M.S. , White Label's white skunk, a few Sour diesel x OG kush from JLP, and some sam skunkman's thai haze x skunk # 1 . And a few bagseeds. I planted around June 1 and all the ones I kept are doing great. I just put them in the green house, and It looks as if the light isnt penetrating the plastic as well as if they were just out in the sun. Am I losing alot of light by having them in a greenhouse using that 4-mil plastic sheeting? I have it well ventilated with 2 24-inch box fans, heat isnt a problem, but I feel like the plastic is almost casting a shadow rather than letting alot of light through.. does anyone know what I mean? My question is how much light - power is lost by using this type of plastic and what are some better alternatives within a similar price range?
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#2 |
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Member
Join Date: Nov 2009
Location: Norcal 916
Posts: 805
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This is 6mil plastic sheeting, seems to be working for me!
I don't think I'm loosing too much light. Peace doublejj
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#3 |
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Posts: n/a
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go with the 6mil plastic all day. much better than the 4mil stuff.
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1 members found this post helpful. |
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#4 |
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Member
Join Date: Jun 2006
Posts: 182
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thank you ^
no one else knows about this? at this point the plants seem to be doing fine but I wonder if the plastic is hindering their progress at all? |
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#5 |
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Join Date: Jun 2006
Posts: 182
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#6 | |
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Quote:
Where can you get those JLP SD x OGK? |
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#7 |
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Member
Join Date: Jun 2006
Posts: 182
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Iron Lion -
the SD x OGK... hm. i think it was a couple years back JLP made the cross and the first hundred or maybe thousand people to PM him with an address would recieve a pack of them in the mail... and I happen to get a pack. I wasnt able to grow them for a couple years, so I gave a few to a friend and this year I tried to germ the last 3 i held on to. 1 didnt pop, but 2 did. of those 2, 1 was a beautiful hardy male :( and the other one is the only plant i have that hasnt shown sex yet. Its a somewhat strange looking plant, defintely healthy, has the darkest waxiest leaves of the crop, but it has no preflowers yet! the rest are atleast a week or 2 into flower and have big obvious female preflowers... im praying its a female because I would love to smoke this strain. By the way, any input on my question about the plastic? |
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#8 |
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Registered Med User
Join Date: Mar 2008
Location: with shovel, ya dig?
Posts: 7,523
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hmmmm..... bump?
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#9 |
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if it smells like fish
Join Date: Feb 2014
Location: bible hill estates
Posts: 8,328
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you get what you pay for in greenhouse coverings....yeehaw that shit wouldn't last long here in so cal..I am using clear panels from lowes ..like 34 $ sheet or so...farmtek.com has great woven poly too...both last years...good greenhouse coverings usually aint cheap...
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#10 |
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Join Date: Jul 2015
Location: uk
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4ml I've seen being used, as it gets sunny its rolled up, also layer when the plants are full grown, my concern is the new type of plastic that come in shade of green, plants can't see green ..???
so is the green shading the plant ..does the green stuff reduce light transmission to the plants .. and sure 6ml plastic is more shady than 4 ml plastic sheeting, by 50%
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Omnes hortulani melius quam alia hortulani all gardeners know better than other gardeners
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