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#21
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How do you plan on doing climate control in the greenhouse? Will you need artificial lighting. What type of lettuce do you plan to grow? That makes a difference in the hydroponic system design requirements. Small lettuce heads can be grown much differently than larger heads. Also What do you plan to do for lighting (artificial or natural). As well as your location and plant size makes a big difference on the best system design and setup. Including weather you will be able to take advantage of vertical space and stack a system, and/or need to stagger the levels for even lighting or not. It's just hard to give specific advice without knowing any of the details. But if you are wanting to get into a commercial operation for growing hydroponic lettuce. I would strongly recommend getting the book Hydroponic Lettuce Production, it's written by Dr. Lynette Morgan. Also here's a useful link that discuses different aspects of lettuce production: Cornell University Lettuce Handbook I also have a couple of PDF's you can print out as well Non-Circulating Hydroponic Method for Commercial Production of Leafy, Romaine, and Semi-Head Lettuce Commercial Hydroponic High Value Specialty Crop Production at Chena Hot Springs Resort. Last edited by GpsFrontier; 08-19-2011 at 06:45 AM. |
#22
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Thank you for your help. The suggestions and the links you provided are very useful for my project.
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#23
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I was thinking about making something like this for my lettuce, to replace my current system while I am working out the bugs. I will perhaps use the current system later for some other ideas.. I am sure I can come up with some ideas for it. I was thinking about perhaps using a roofing cement similar to
Roof cement for $10 to use as the cement to put the plastic down. I have a feeling this will be more than enough to build 2 of these systems since I am only wanting a thin layer of the cement to protect the plastic from the splinters of the wood. On a side note.. I am considering making a small soil planter for a few lettuce to use as a comparison of growth to determine if hydroponics are growing resonably. This is more of a self note of progress/setbacks since I have no past experience with the plants I am currently growing. Last edited by jamromhem; 08-27-2011 at 02:19 PM. |
#24
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Interesting, My first thought was it looks like roofing tar, and roofing tar needs to be heated before it can be applied. But it clearly says "Cold Process," so that has me wanting to look into it as well, especially if it's cheaper than the elastomeric Roof Coating.
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#25
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That is my main reasoning to want to try it as well.. I have tried to work with cold tar before and it is far from fun lol.. My brother had a tree rip down the power line to his house last winter and at the probably 20 ish degrees it was outside patching the roof with tar was not very fun... A LOT worse than normal.
but a 20 dollar difference in a gallon is worth an attempt.. We will see which of us check it out first. If HD still has it next week I will be getting some for making my new lettuce system. |
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