| 释义 |
hydroponics|ˌhaɪdrəʊˈpɒnɪks|
[f. hydro- + Gr. πόνος work: see -ic 2.]
The process of growing plants without soil, in beds of sand, gravel, or similar supporting material flooded with nutrient solutions. Hence hydroˈponic a., hydroˈponically adv.; hydroˈponicist, one who practises hydroponics; hydroˈponicum, the building or garden in which hydroponics is practised.
1937W. F. Gericke in Science 12 Feb. 178/1 ‘Hydroponics’, which was suggested by Dr. W. A. Setchell, of the University of California, appears to convey the desired meaning better than any of a number of words considered. 1938California Monthly Feb. 13/2 My first planting..was set in the hydroponicum on September 18, 1936. Ibid. 40/3 The important factors..must be understood by the hydroponicist, as they must be understood by the successful gardener. 1940Times 20 Apr. 1 (Advt.), Hydroponics (crops without soil)..easy if you use Gromost hydroponic mixture. 1940Manch. Guardian Weekly 17 May 394/4 Hydroponics received a great impetus in the United States shortly after the trans-Pacific air line was established. 1951A. C. Clarke Sands of Mars viii. 94 The local brew..was completely synthetic—the joint offspring of hydroponic farm and chemical laboratory. 1951J. S. Douglas Hydroponics iii. 30 A farm or garden devoted to soilless cultivation is usually called a hydroponicum. 1955Sci. News Let. 30 Apr. 282/3 Chemical gardening or hydroponics makes a favorite exhibit. 1956Jrnl. Brit. Interplanetary Soc. XV. 20 As hydroponicists have pointed out, soil is in no way a perfect medium. 1961Astronautica Acta VII. 134 Men have survived over extended periods on hydroponically produced plant food. 1967Technology Week 23 Jan. 48/1 Water and minerals from the Moon can be used to grow food hydroponically. 1970New Scientist 5 Feb. 259/3 The potential of hydroponics..is only just beginning to be tapped. 1971Daily Colonist (Victoria, B.C.) 13 May 1/4 Hydroponic grass has produced encouraging results with dairy herds, increasing their milk yield. 1973Listener 13 Sept. 338/2 Growing vegetables like aubergines and sweet corn and green peppers hydroponically—that is, without soil. |