Method of deep cultures
Hydroponics - the science of growing plants without soil.
The key to the roots in the hydroponics system - an adequate supply of oxygen, water and minerals. The easiest way to grow plants in hydroponics - their roots immersed in a dilute solution of nutrients, which is enriched with oxygen through microcompressors. This method is one of the most effective, and if you do everything right, it is quite possible that your quite unremarkable hemp becomes a monstrous trees by deep cultures: from start to finish
In this article I will explain the essence of this method, give an example of design and composition of the nutrient solution, in short, all you need to know in order to try to grow hemp in this way. Since no Vaeth two identical greenhouses, each will make to design their own changes - but they will be minimal.
These changes should be made carefully, because when DWC Using plants are very quick to react to modify the conditions of! You must take into account the particular class, lighting, fertilizer use ... Among other things urged to maintain sterile conditions, both inside and around the barrels. Filth and lack of attention paid to your plants, will ensure the failure!
Choosing barrel
This trehgallonnaya points (approx. 15 liters) found near the hospital. It was once a cocktail. Do not use drums of chemicals, because there is never assurance that they otmoyutsya completely. Rinse the barrel of a 10% solution of bleach to disinfect, remove the handle.
The volume of 3 gallons is the minimum in order to get at least some harvest, we recommend 5 gallons or more.
We'll look with a lid
Vyrezhte cover the hole in the center of this diameter, so they sat tight 6-inch net pot. Make additional holes in 1 / 4 inch in order to allow the hose aerator. Net pots are available in the near hardware store, which sells equipment for hydroponics [Chpon: more of us b ...]
Pot needs the most durable of all, you can find. Take this seriously, because he will firmly hold so little plant. Later, you'll see a photo of the barrel with three 3.5-inch pots, it is convenient for planting seeds or clones ....
Grows only hemp!
Bm need to block access of light in the barrel or it will instantly algal growth. Algae tend to cover the roots, preventing them from absorbing oxygen and nutrients.
I used to do dark tape, but even three layers of it could not fully svetoizolirovat barrel ... The best way was a vinyl tape for anticorrosion coating of pipes. Rolls can be purchased in hozmagazine for $ 8 and its enough to cover the four 3-gallon drums with lids.
"Why I prefer two-channel compressor ..."
First, such a compressor, you can use to power two barrels neolshimi plants. Second, if you want to feed one big plant - you can combine the channels with the T-tee, and the oxygen it udet enough.
A good compressor is worth about $ 15, and I sincerely recommend you do not pozhlobitsya - later this investment will pay off many times in the form of an excellent crop!
As a spray of bubbles (aerator), toy prefer small, firm Wal-Mart for $ 0.9, of all tested it produces naiolee small bubbles. I also tried a 6-inch "bubble curtain" (bubble curtain), but remained dissatisfied with the result. You may have to use a small steel bob to hold the nozzle at the bottom.
Using a substrate?
I prefer to use cubes of rock wool and gro-rocks or geology. You can completely abandon sustrata and use aeroponic rooting.
Nutrients
This is the most controversial part, and everyone can make their own changes in technology. I used GH Flora Series udoreniya of three components, as well as the bitter salt and Pro-Tekt doavku with silicon. For the preparation of the solutions recommended to use distilled water because pipe is not always good even for a man: (
For planting seeds and tend to use fresh solution 1-1-1 concentration of 33%. For this to 1 gallon of water added to 5 ml of components Grow, Micro and Bloom (Height, trace elements and flowering). First added to fertilizer for growth, then trace elements in the last turn to bloom. After this solution is added 5 ml of Pro-Tekt and 1 / 4 teaspoon of bitter salt. The solution is poured into the barrel and finally divorced two gallons of water.
About 10 drops of 70% nitric acid in category "reagent" can lower the pH to 5.5 ... 5.8, then it may itself fall to 4 or grow up to 6 - depending on which elements of the plant pulls out of solution. For vegetative growth ratio of the components changed, for preparation of the solution using 15 ml Grow, Micro 10 ml and 5 ml Bloom (3-2-1 formula, 33%). All other stages of preparation of the solution are the same, only for the correction of pH to a different number of nitric acid.
At the flowering stage, the solution is prepared in the same way, but it takes 3 ml Grow, Micro 10 ml and 15 ml Bloom.
The level of solution
Ac experience shows that the main reason for failure - supported by too high a level of solution in the barrel, so that it wets the substrate in the pot. The level of the solution should be at 0.5 ... 1 inch below the bottom of the pot! Do not be afraid if the level falls too for some time - it can only lead to proliferation of aerial roots.
To replenish the flow of the solution I use exactly the same solution prepared separately. Periodically (once every 1-2 weeks) solution in the barrel you want to change completely.
I hope this text helped you understand all the advantages and features of the method of "gurgling drums" (DWC). Grow and enjoy!
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