Recirculation Deep Water Culture
Recirculating direct 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 favor 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, which would be at the 'Tub' like reservoir. The Deep Water Culture system requires adequate water + oxygen nourishing solution.
The solution is oxygenated (possibly near, or equal to, oxygen saturation) from an air pump combined with porous stones. With this method the plants may grow faster because of higher amounts of oxygen that the roots receive, verses other forms of deep water culture.
Read more about this topic: Deep Water Culture
Famous quotes containing the words deep, water and/or culture:
“The poet alone knows astronomy, chemistry, vegetation, and animation, for he does not stop at these facts, but employs them as signs. He knows why the plain, or meadow of space, was strewn with these flowers we call suns, and moons, and stars; why the great deep is adorned with animals, with men, and gods; for, in every word he speaks he rides on them as the horses of thought.”
—Ralph Waldo Emerson (1803–1882)
“‘Tis not enough on roots and in the mouth,
But give me water heavy on the head
In all the passion of a broken drouth.”
—Robert Frost (1874–1963)
“It is of the essence of imaginative culture that it transcends the limits both of the naturally possible and of the morally acceptable.”
—Northrop Frye (b. 1912)