Juicy senior
11 years ago
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- 11 years agolast modified: 11 years ago
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1938: Magic Prices in hydro set in
Comments (10)Hi Cole, The above 1930 patent was a very early prototype which included automatic acid and nutrient addition in very creative ways. But the very first systems in the mid-1930's like we use were nothing that would be out of place at your backyard or mine ... they were just shallow "tanks" usually made from lumber and then sealed with blacktop (an asphalt product), or tarpaper (the same thing is common today where PE film/sheet is now used in place of the tar paper). The tanks were very shallow, usually 6 inches and the water level usually an inch below the top, and they were long, like you would expect for an agricultural row, but usually about 3 feet wide (hobby systems) or 6 feet wide (commercial) for convenience of reach. There were no net pots, but rather just multiple plant removable trays. Each tray was made by attaching the entire bottom of chicken wire on a simple wood rectangle of say, 1"x6"s and 1"x4"s --- by far the most common. You just lift them on and off the tank frame like picking up drawers. The media in each tray then covered the entire chicken wire for about 3-4" deep, they were cellulose products on top, like wood doll stuffing, wood shavings, and rice hulls. The trays fit snugly into to "tank" bottoms. in convenient sizes like a mosaic, usually one on each side of the width and anywhere from three (hobby size) along the length to more than a dozen (big and commercial) long. These were based on Gericke designs, and he did a lot of consulting through the 1930's and tended to credit enormously those who he consulted for allowing him to do practical hydroponics (imagine when he left the severely critical environment of the scientists at the university how he must have felt getting to tinker with tens of different variations of systems with people really enthusiastic to do it). Look at this, the only adjustments from Gericke's hobby design are the plastic film which replaces the asphalt paint, and that this talented Perth writer and Gardener used screws instead of brackets. Congratulations to George, you even got one of Gericke's favorites, potatoes! From that great country down under, here's a beautiful, productive "retro design". Concrete was one of three choices for the bottom half (the "shallow tank" a.k.a., "basin", but not the trays). Concrete was in a decent proportion of early commercial systems. Concrete though had to prepared something like we should do with rockwool. The thing about concrete is those systems lasted longer, so with the world going to war and people moving around, the numerous wooden systems that fell into disuse, just like today were not as durable so easily got mangled and tossed in the trash, like forgotten toys, lost without a trace. That gave an impression later on that early systems were concrete, because more of those survived. In addition to wood tanks and trays, and concrete (tanks), sheet metal was also used for tank making successfully after sealing in some of Gericke's designs. Sounds right, but we'll have to do more research to be sure when the plastic systems got popular. PVC pipe took off in the early to mid-1950's but as you note, the real thing to see is when the first plastics that were both economical were widely available were applied to hydro systems. This post was edited by PupillaCharites on Sun, Mar 9, 14 at 5:32...See MoreUPDATE: Petal Pushers July White Elephant Swap
Comments (150)That's so funny! That time I thought you were just being silly! Good news at the dentist always makes for a better day! Yay! Lisa - I'm so sorry that I've been remiss in taking time to post on the board that I received my prize package from you. I sent you an e-mail when it arrived on Monday. I hope you received it. To everyone else - Lisa sent me the nicest box of prizes from last month's games. For some game when I was the next person to post (it seems like we were waiting for Tracy to materialize but I don't remember why) she sent me some nice gloves and plant markers. For finding that tiny Christmas tree, thereby putting an end to her 'I Spy' game, she sent me a plant off of my want list. She chose to give me Phlox 'Orange Perfection'. I was very excited to get this, as I've never seen it in my area. And, just because she's so sweet, Lisa sent me another start from Larry's iris collection! I'm a lucky girl!...See Morejeffhagen, here is the article about California Mangos
Comments (2)Hello, Can anyone suggest a Indian type mango variety that may grow well in inland Los Angles area with planting zone 10b: 35 to 40 F? Is it true that either Kent or Golden Nugget are Indian type variety? Are they compact in size? Thanks!...See MoreHorror Stories. Watcha Got?
Comments (139)RE: Novahomesick story about the people & their decorator. I would have to do something to let them know that they weren't as clever as they thought.... I like the idea of billing them for decorating advice - who cares if you don't get any money, just letting them know that you knew what they did ....priceless! You could also see if the decorator was "licensed" in your state & could check into filing a complaint. How about having friends call the decorator (provided she does a free initial consulting) and waste a bit of her time - like they did yours - ending the meeting with " You know, I just saw a house I liked, maybe you could just go there & copy evertyhing......" maybe he/she would get it after about the 3rd time. And you could have a "HaHaHa!" moment of your own at their expense. (I can't take full credit for this plan -- it was hatched while stuck in traffic this morning with my DH who I affectionately call Mr. PA (passive/aggressive). He deals with people like this all the time as an artist I can't tell you how many times he's heard "I can make that myself" or watched people take photos of one-of-a-kind peices with their cell phones. People.)...See More- 11 years agolast modified: 11 years ago
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