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  • Hydroponic Greenhouse Monitoring and Control System

    pH 5.5-6.5 EC 2.0-5.0 PPM 1400-3500. If you haven't done hydro before then be aware that this is NOT what you'd start the plant off in. I generally stick to about a third of the recommended ppm and slowly increase each time you change out the water. Similarly stick to the lower end of the pH, perhaps around 6.0.When I grew roma tomatoes, they flourished with barely any water (I used a top drip method), higher temperatures (and a generally lower humidity)."Tomatoes are a warm weather plant and do not do well when the air temperature dips below 50 degrees (Fahrenheit). Optimum temperature for tomatoes is 70-85 degrees during the day and 65-70 at night. In greenhouse settings these optimum temperatures can be maintained or tomatoes will do quite well at a constant 75 degrees. Many out...

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    pH 5.5-6.5 EC 2.0-5.0 PPM 1400-3500. If you haven't done hydro before then be aware that this is NOT what you'd start the plant off in. I generally stick to about a third of the recommended ppm and slowly increase each time you change out the water. Similarly stick to the lower end of the pH, perhaps around 6.0.When I grew roma tomatoes, they flourished with barely any water (I used a top drip method), higher temperatures (and a generally lower humidity)."Tomatoes are a warm weather plant and do not do well when the air temperature dips below 50 degrees (Fahrenheit). Optimum temperature for tomatoes is 70-85 degrees during the day and 65-70 at night. In greenhouse settings these optimum temperatures can be maintained or tomatoes will do quite well at a constant 75 degrees. Many outdoor growers like to start plants inside several weeks before outside temperatures are optimal to get a jump on the season. This is a good practice, but care must be taken not to set plants outdoors too soon. Plants subjected to cold conditions may never fully recover and be poor producers." - C.J.Kline (http://www.gardenandgreenhouse.net/index.php/past-issues-mainmenu-18/25-2008-garden-greenhouse/june-2008/228-hydroponics-101)Source: Literally "tomato hydroponics ppm" and "tomato hydroponics temperature" google searches away.

    Well, for tomatoes: pH 5.5-6.5 EC 2.0-5.0 PPM 1400-3500. If you haven't done hydro before then be aware that this is NOT what you'd start the plant off in. I generally stick to about a third of the recommended ppm and slowly increase each time you change out the water. Similarly stick to the lower end of the pH, perhaps around 6.0.When I grew roma tomatoes, they flourished with barely any water (I used a top drip method), higher temperatures (and a generally lower humidity)."Tomatoes are a warm weather plant and do not do well when the air temperature dips below 50 degrees (Fahrenheit). Optimum temperature for tomatoes is 70-85 degrees during the day and 65-70 at night. In greenhouse settings these optimum temperatures can be maintained or tomatoes will do quite well at a constant ...

    see more »

    Well, for tomatoes: pH 5.5-6.5 EC 2.0-5.0 PPM 1400-3500. If you haven't done hydro before then be aware that this is NOT what you'd start the plant off in. I generally stick to about a third of the recommended ppm and slowly increase each time you change out the water. Similarly stick to the lower end of the pH, perhaps around 6.0.When I grew roma tomatoes, they flourished with barely any water (I used a top drip method), higher temperatures (and a generally lower humidity)."Tomatoes are a warm weather plant and do not do well when the air temperature dips below 50 degrees (Fahrenheit). Optimum temperature for tomatoes is 70-85 degrees during the day and 65-70 at night. In greenhouse settings these optimum temperatures can be maintained or tomatoes will do quite well at a constant 75 degrees. Many outdoor growers like to start plants inside several weeks before outside temperatures are optimal to get a jump on the season. This is a good practice, but care must be taken not to set plants outdoors too soon. Plants subjected to cold conditions may never fully recover and be poor producers." - C.J.Kline (http://www.gardenandgreenhouse.net/index.php/past-issues-mainmenu-18/25-2008-garden-greenhouse/june-2008/228-hydroponics-101)Source: Literally "tomato hydroponics ppm" and "tomato hydroponics temperature" google searches away.

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