WTF is DWC!!!!?
- Thread starter Talisman
- Start date
sophanox
Well-Known Member
lol mate you clearly haven't looked hard enough - second result when i googled 'dwc hydroponics': http://www.hydroponicist.com/pages/p44-dwc-bubbler.htm
erkelsgoo420
New Member
Its using a soiless medium suspended over a pool of aerated water aloowing the roots to hangin the aerated solution theoretically maximizing nute uptake and potential as the plant has everything it needs right there at its roots when it wants it rather than when u give it to them
hotboxhatchback
Active Member
Deep water culture
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Deep water culture (DWC) is a hydroponic method of plant production by means of suspending the plant roots in a solution of nutrient rich, oxygenated water.
Contents
[hide]
Traditional methods favour the use of plastic buckets with the plant contained in a net pot suspended from the centre of the lid and the roots suspended in the nutrient solution. An air pump powered aquarium airstone oxygenates the nutrient solution; if sufficiently oxygenated, the plant roots can remain submerged indefinitely. Once the plants are ready to flower, the level of the nutrient solution is gradually reduced to expose the roots to the air.
Plants absorb vastly more oxygen directly from the air than from the oxygen dissolved in water. Deep water culture allows plant roots to absorb large quanties of oxygen while also allowing the uptake of nutrients. This leads to rapid growth throughout the life of the plant.
[edit] Recirculation deep water culture
Recirculating deep water culture systems (also known as RDWC) use a reservoir to provide water for multiple buckets. Traditional methods using unconnected buckets require individual testing for pH and conductivity factor (CF). This has led to innovations that have seen the removal of air stones in favour of connecting multiple buckets together and recirculating the water. As the water is reintroduced to the bucket it is broken up and aerated with the use of spray nozzles. Constant recirculating oxygenates the water and ensures a good mix of nutrients CF and stabilizes pH throughout the entire system so testing is required only at one point.
The solution is super oxygenised from an air pump combined with porous stones. With this method the plants grow much faster because of the high amount of oxygen that the roots receive.
The DWC system requires adequate water + oxygen nourishing solution.
[edit] DWC Hydroponic System usage
It is advisable to start this type of indoor cultivation with cubes of rock wool. Once the seeds are germinated in cubes of rock wool, put them into the DWC baskets previously filled with clay expander. Fill the DWC system with water and fertilizers that are hydroponic specific up to the level of the solution in contact with the base of baskets.
In this way, the clay will be in contact with the solution that will be absorbed by the plants roots. Soon the plant will develop a large root system that will naturally immerse in the nutrient solution. It will not be necessary to maintain the level of nutrient solution to the same level of the base of the baskets, but results will come with a lower level. It is recommended replacing the nutrient solution approximately once a week and wash the container / tank with hot water to remove any algae, mould and salt deposits. Every time you fill the tank, measure the pH of the solution and ensure that its value is between 5.5 and 6.8. Revise with the pH indicator. Constantly monitor the pH. The well-oxygenated and enlightened environment promotes the development of algae. It is therefore necessary to wrap the tank with black film obscuring all light. Illuminate the system for a 21 day month of vegetative growth for 18hrs/day using a HPS lamp. After 21 days vary your light hours from 18 to 12hrs/day and this will start the flowering stage. The beginning of the flowering period may cause a sharp rise in the pH Revise with pH indicator.
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Deep water culture (DWC) is a hydroponic method of plant production by means of suspending the plant roots in a solution of nutrient rich, oxygenated water.
Contents
[hide]
- <LI class=toclevel-1>1 Traditional methods <LI class=toclevel-1>2 Recirculation deep water culture <LI class=toclevel-1>3 DWC Hydroponic System usage <LI class=toclevel-1>4 References
- <LI class=toclevel-2>4.1 Notes
- 4.2 Bibliography
- 4.3 External links
Traditional methods favour the use of plastic buckets with the plant contained in a net pot suspended from the centre of the lid and the roots suspended in the nutrient solution. An air pump powered aquarium airstone oxygenates the nutrient solution; if sufficiently oxygenated, the plant roots can remain submerged indefinitely. Once the plants are ready to flower, the level of the nutrient solution is gradually reduced to expose the roots to the air.
Plants absorb vastly more oxygen directly from the air than from the oxygen dissolved in water. Deep water culture allows plant roots to absorb large quanties of oxygen while also allowing the uptake of nutrients. This leads to rapid growth throughout the life of the plant.
[edit] Recirculation deep water culture
Recirculating deep water culture systems (also known as RDWC) use a reservoir to provide water for multiple buckets. Traditional methods using unconnected buckets require individual testing for pH and conductivity factor (CF). This has led to innovations that have seen the removal of air stones in favour of connecting multiple buckets together and recirculating the water. As the water is reintroduced to the bucket it is broken up and aerated with the use of spray nozzles. Constant recirculating oxygenates the water and ensures a good mix of nutrients CF and stabilizes pH throughout the entire system so testing is required only at one point.
The solution is super oxygenised from an air pump combined with porous stones. With this method the plants grow much faster because of the high amount of oxygen that the roots receive.
The DWC system requires adequate water + oxygen nourishing solution.
[edit] DWC Hydroponic System usage
It is advisable to start this type of indoor cultivation with cubes of rock wool. Once the seeds are germinated in cubes of rock wool, put them into the DWC baskets previously filled with clay expander. Fill the DWC system with water and fertilizers that are hydroponic specific up to the level of the solution in contact with the base of baskets.
In this way, the clay will be in contact with the solution that will be absorbed by the plants roots. Soon the plant will develop a large root system that will naturally immerse in the nutrient solution. It will not be necessary to maintain the level of nutrient solution to the same level of the base of the baskets, but results will come with a lower level. It is recommended replacing the nutrient solution approximately once a week and wash the container / tank with hot water to remove any algae, mould and salt deposits. Every time you fill the tank, measure the pH of the solution and ensure that its value is between 5.5 and 6.8. Revise with the pH indicator. Constantly monitor the pH. The well-oxygenated and enlightened environment promotes the development of algae. It is therefore necessary to wrap the tank with black film obscuring all light. Illuminate the system for a 21 day month of vegetative growth for 18hrs/day using a HPS lamp. After 21 days vary your light hours from 18 to 12hrs/day and this will start the flowering stage. The beginning of the flowering period may cause a sharp rise in the pH Revise with pH indicator.