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Kratky method. The Kratky method is a passive hydroponic technique for growing plants suspended above a reservoir of nutrient-rich water. [1] Because it is a non-circulating technique, no additional inputs of water or nutrients are needed after the original application, and no electricity, pumps, or water and oxygen circulation systems are ...
Pistia is a genus of aquatic plants in the arum family, Araceae. It is the sole genus in the tribe Pistieae which reflects its systematic isolation within the family. [5] The single species it comprises, Pistia stratiotes, is often called water cabbage, water lettuce, Nile cabbage, or shellflower. Its native distribution is uncertain but is ...
An example of deep water culture in lettuce production. 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. Also known as deep flow technique (DFT), floating raft technology (FRT), or raceway, this method uses a rectangular tank less than ...
Lactuca serriola, also called prickly lettuce, [2] milk thistle[2] (not to be confused with Silybum marianum, also called milk thistle), compass plant, [2] and scarole, [2] is an annual or biennial plant in the tribe Cichorieae within the family Asteraceae. It has a slightly fetid odor and is commonly considered a weed of orchards, roadsides ...
The Biyagama Water Treatment Plant or BWTP is a water treatment facility located at the bank of Kelani River, in Biyagama, Sri Lanka. At a daily output capacity of 160,000,000 L / d (1,900,000 L/ ks), it is the second largest water treatment facility in the country. The plant provides drinking water to approximately one million people, in ...
This year they are growing lettuce, bell peppers, sweet potatoes and strawberries. One of their systems sprays the exposed roots of the plant periodically with a nutrient solution. Any excess ...
Lactuca floridana, commonly known as woodland lettuce, [3] Florida lettuce, [4] or false lettuce[5] is a North American species of wild lettuce. It is native across much of central Canada and the eastern and central United States. Lactuca floridana is an annual or biennial plant in the Cichorieae (dandelion) tribe within the Asteraceae (daisy ...
The high water content of lettuce (94.9 percent) creates problems when attempting to preserve the plant – it cannot be successfully frozen, canned or dried and must be eaten fresh. [34] In spite of its high water content, traditionally grown lettuce has a low water footprint, with 237 liters (52 imp gal; 63 U.S. gal) of water required for ...
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