How rockwool is work as a hydroponic growing medium?
what is the importance as a hydroponic growing medium for rockwool
Suggestion by Rustskipper
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).
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what is to be added to sedge reed peat to make it a rooting and growing medium?
The sedge reed peat as growing medium needs to be supplimented to make it a successful growing and rooting medium
Suggestion by Cakes
When trying to decide what to do with a certain soil, then we need to figure what we have and what we want.
sedge reed peat has certain qualities and then you figure what your plant needs. it is good to investigate the needs of the certain plant you are potting up because some are VERY particular. like they may need mud or a desert. or lots of nutrition or none.
I actually do not recommend much peat usually because it is a strong ingredient. it is quite acidic (3.9 – 5.0). also it is generally devoid of most nutrients AND if left for a while, it can form a peat bog at the bottom of the pot. Apparently sedge reed peat is VERY good for golf courses that are to be made with calcerous sand as a base though. it counteracts the alkalinity and preserves moisture. the sand and peat provide a balanced and well draining base for the grass and it is best since the food comes as additives since golf greens get fed so much.
If it still seems like a good idea to try it, then most peats should not be more than 1/3 of the total soil mix i think. And it will need supplemental food. which can come from the other 2/3 of the mix (for a short while), or it can come from additives. The 2/3 can be stuff like compost or potting soil or dirt from outside (if you sift for rocks and big bugs) < What do you think? Answer below! After a few delays, we finally have our finalists for our 1000 Subscribers Contest. You can go to http://www.facebook.com/gettingtheregreen to vote. Please “…
What do you think? Answer below!
After a few delays, we finally have our finalists for our 1000 Subscribers Contest. You can go to http://www.facebook.com/gettingtheregreen to vote. Please “…