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Question and Answer Page 78
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Help! My plants, now about 12 days under a 1000W MH lamp (18 hour veg stage), are doing something very strange. Some of the stems, for about 1/4” just above the growing medium, are turning brown and shriveling, making it necessary to stake the small plants. Not all plants are doing this – only about half of them. So far they are not dieing but I fear they will in time. I’m using a (General Hydroponics) mild nutrient solution, 900-1000 ppm, ph of 6, grow room has plenty of ventilation and temp about 70 degrees, feeding sparingly – 1 time a day with ebb & flow system in grorocks medium (started plants in rockwool cubes). Water temp is kept about 80 degrees. Any suggestions?
Watering one time a day! I water every 20 minutes. Your plants can't get enough nutrients being watered once a day.
I am going to be try to plant bulbs in a hydroponic solution. Do you think bulbs will grow hydroponically?
Sure.
do you have any more research topics
one more
anyone have plans to build a linear light mover? these things seem kinda costly.
Believe me I tried years ago. Tried using an old garage door opener. Gave up and made a circle one from a rotisserie motor that lasted for a over a year.
Does anyone know or have any idea about the hydroponics market. Like the market size, target market, the development and competition or the problem now exist.
Canada is a problem because their commercial hydroponic farmers are government subsidized against any and all loses they may incur.
Jon lange I have had a hard time trying to find cheap equipment. I know what I want but there are not many distributors in MN I live in Minnetonka, MN
i have a 11 plant garden everything is fine, except the tomato that just recently began to wilt while the others r fine. I have noticed some little black specs all over the main stem of the plant. What do u make of this?
Thanks
Jerk it before it spreads to the rest.
Ron, I am a newbie, but I very interested in becoming a competent hydro-gardener. I am growing tomatoes in a ebb and flow system. I would like to know how far up the solution should go a 5.5" x 5.5" x 6" inch rockwool cube. I am watering 5 times a day for in 15min. cycles.
-your site is a goldmine! Sam @ sgolwala@hotmail.com
About an inch or two. The cube will act as a sponge to soak up what it needs. Watch for over watering. Rockwool is better with drip systems than ebb and flow because of root rot.
HydroRon, When using a drip head, is it possible to over drip the plant if it is in rockwool, surrounded by grow rocks? Does the dripper run continuously or in cycles? I have a sufficient pump , but can you suggest where to get the supplies or a set to connect to my pump. SAM sgolwala@hotmail.com
Water in cycles and the best place to get fittings is Home Depot or Lowe's in the lawn irrigation department.
I am using a 50/50 mix of pea gravel and perlite as a medium in a six plant drip system. I am using well ventilated 16 ounce containers. I am dripping at a rate of about 1 gallon per hour per plant. At this rate how often should I cycle the pump, or better yet can I let it run continuously? Also, the system is laid out in a one foot by two foot six pack arrangement. I am using two 33 watt gro and show flouescent lights. Is this enough light for my "herb" garden? Thanx JP
I would water every 30 minutes or so. If you sit it next to a sunny window then it might enough light.
Greetings from Spain.
Where can I find free hydroponic system plans in internet ?
What about using halogen lamp as an artificial light source ?
Thanks in advance.
Wrong light spectrum from a halogen.
How big should the sprouts in rockwool starter cubes be before transfering to the 11- plant garden? I'm worried about putting them in too soon and overwatering them. The starter cubes seem to hold water for a few days(still wrapped though). Whaddaya think Ron?
When you see roots starting to spout from the starter cubes is the time to transplant them. Make sure the water rises high enough to wet the cubes or they will be toast.
15TH October 2001
To the person who submitted the comments below, I would love a copy of your circuit based on the 555 Timer chip.
ken@hickford2.freeserve.co.uk
6/22/97 Hi Ron Remember me I'm the person who needed a 12 volt timer for my hydro unit. Well after a bit of research I found a circuit description for a long-term linear timer using the 555 chip. After some experimentation with various resistors and capacitors we have a 12 timer with a cycle time of 27 min off and 40 sec on. adjustable to 1hr off and 2 min on. By varying 1 or more of 3 parts the on/off cycle is almost unlimited. The best part is it cost less than $30.00. Any one wanting a parts list and circuit description please email me directly and I will be happy to send.
hello all,i have a question on building a grow area within a shed. does anyone have any ideas on building a grow room and whats needed i normally sow seeds outdoors but next spring i hope to start them indoors and transplant outdoors and double as a clone room
How many plants would a 175 watt metal halide setup handle? I heard it provides enough light for a 2' by 2' area, is this true?
Yes
What is the amount of nutrients that the plants need to grow?
From about 800 ppm for young plants up to 2000 ppm for mature plants.
I'm tring to do a science Fair project for school and I'm having trouble find the right nutrient to put in the water for my hydroponic plant's environment. I want to use something that you found around a house. I told my teacher I was going to use lime juice but I don't know what effect lime juice would have on the plant. My teacher says I have to have something that say Lime helps plant grow. CAN ANYONE HELP ME OUT E-mail me at Babydesk87@Hotmail.com
I am currently building your 11 plant system, and so far it's really cool! good work! has anyone ever tried to use tobacco/sink screens to put over the hole in the cap to keep the roots from growing into the pvc pipe? also will a 250watt hps be enough for 11 plants, it's only 18in by 3ft setup... i'm using 6 40watt flourscent tubes for flowering and suppose a 250 watt hps would be much nicer:0 i'll probably have more questions in the future, once again ron, GREAT WORK!! thanks, <GROWDUDE>
Yes on the 250 watt.
Where is a good place to buy a complete Son Agro 430 watt system online? (Ballast, bulb, and reflector)
whats better tap water or purified water?
purified. I wouldn't feed my dog tap water.
I am new to growing hydroponically, although I have read a ton on the subject. My question is: which system is the best and can you give me a breakdown on them all and the pros and cons for all? I mean NFT,DRIP AND ALL. I plan on starting out with like 20 plants! I would appreciate the help. jay email: jayscustom@hotmail.com
is there anybody out there in the uk that would be interested in buying some secondhand (used once) growing equipment? i have a 5x3ft nft tray, with a 100ltr feed tank, drippers for each channel(3),pump,waterheater,measuring equipment, thermometer, ect. everting bar the lights. contact me at smallp@talk21.com
Have only just started an ebb/flow system 5 weeks ago. My peas and cucumbers are growing very rapidly, but I have noticed a problem.. there are tiny translucent and white spots on some of the leaves.. Can anyone tell me what might be the problem and how to I solve this? P. C.
If soil bound plants have the same needs as hydroponic plants...wouldn't straight water and miralce gro be sufficant to use in a small ebb and flow system, considering some of the solution would stay in the rockwool/grorocks after "flooding"?
p.s I am talking house plants, not organic.
Totally different ways of growing. With dirt you have a buffer between the plant and the fertilizer. A different chemical reaction with hydro than with dirt. That's why it's takes longer to kill a plant in dirt than hydro. With hydroponics you don't have that buffer so you see results immediately, good and bad.
You can use miracle-gro if you add what's missing. Calcium Nitrate and Magnesium Sulfate.
Have you ever grown a plant called Lion's Tail or Lion's Ear? Just looking for some insight.
I grow a plant called Horse's Tail.
I purchased the 11-plant garden and am very confused. I am a first time hydroponics user and am demonstrating if hydroponics or soil works better for the city of Chicago science fair. I would like to know how to germinate the seeds. I tried just putting them in the cups and having the pump on a timer, but all i got was smelly mold. Does anyone have any suggestions?? I really need to know, so please e-mail me at nodoubt1516@hotmail.com.
Start your seeds in vermiculite, perlite or rockwool starter cubes and transplant to the garden when they are 3 or 4 inches tall.
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