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Hydroponic growing is an indoor growing method that I know, but what is special and profitable in this growing technique what make people to start growing hydroponic.

it is also know as 'soil less ' growing.
it is high tech and more controled than soil grow.
u get faster growth and more defined growth.

2008-02-05 05:37:18 by g.expert

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Just was wishing to make a small hydroponic growing unit for one plant in my small apartment. I don't have too much room and am not wanting to spend a ton of money on a real, professionally built unit.

Thanks.

The simplest one I've built was with two 5gal buckets a small fountain pump ($8 on eBay) and an aquarium air pump ($1 at yard sale) in an ebb and flow system. When placed in a sunny window with 4 supplemental 13W "Lights of America" sunlite compact fluorescents ($12), I was able to get cherry tomatoes to fruit. RScott

2007-11-12 00:07:37 by Ryan

Price: $15.00 $15.00

Great for Hydroponic Wheatgrass or Barley Grass
Cut to fit standard 10/20 Garden Trays
Roots will thrive in this natural media

what is the importance as a hydroponic growing medium for rockwool

Hey Danny,

Rockwool acts as a substrate growing system in a hydroponic system where the root zone is physically supported by media. The plants are fed by applying nutrient solution to the media. This system is in contrast to an NFT (nutrient film technique) type hydroponic system where the root system is not supported by a growing media but is bathed directly in the nutrient solution.

Almost any material that supports the root system, other than soil, is considered a substrate. Substrates can be organic such as peat, pine bark, sawdust, rice hulls etc.. They can be petroleum based such as polymeric foams or plastic beads or they can be inorganic mineral based as are sand, gravel, perlite and rockwool.

There are a number of reasons for using substrates to support the plant root system in a hydroponic growing system. In addition, an effective substrate should possess certain qualities.

Rockwool is a man-made mineral fiber. The vast majority of rockwool used in the world is used for insulation purposes much like fiberglass. However, the properties of rockwool can be substantially changed by adjusting the mineral content. In the early 1960s it was found that following several modifications to the manufacturing process rockwool would support and, under the right handling practices, promote plant growth. This specially produced horticultural rockwool is what is primarily sold as a hydroponic substrate.

All rockwools are not the same. The best are produced from pure basaltic rock (diabase). The rockwools produced from diabase have a mineral balance that is inert and nonreactive. A few rockwools are produced from slag left over from smelting operations. These rockwools contain a high proportion of metals and may be somewhat reactive with the nutrient solution. High quality rockwools should have a uniform fiber diameter, even binder distribution and a low proportion of shot (mineral pellets that have not been spun into fibers).

2009-06-23 10:39:36 by Danny

Price: $256.00 $103.00

Light support brackets
Equipped with a wide heavy duty industrial zipper
Two vent holes built in

I'm looking for a really simple but effective recipe for making a colourless gel for growing plants in so that I can display them in glass vases and other transparent containers, thanks.

You can purchase water absorbing crystals in the garden section, just mix a very small amount of nutrients with water and all the crystals. walah

2007-05-16 04:53:22 by jay

more especially Indica and Japonica rice. Kindly refer me to any work on that regard or give me a reasons. The answers will help me in my design of an experiment Im about to start using hydroponic to grow rice and screen the varieties for certain sress.

No sure specifically about rice, but this site might
have some answers:

http://hydroponics.com-afl.com

Hope that helps!

2008-04-13 20:48:20 by nahemiah d