| 释义 |
▪ I. soilless, a.1|ˈsɔɪllɪs|
[f. soil n.1]
a. Destitute or devoid of soil or mould.
1828–32in Webster (citing Bigsby). 1853Jrnl. R. Agric. Soc. XIV. i. 19 The steep, rugged, and nearly soilless sides and crags of the limestone. 1865Spratt Crete I. 20 A bared and almost soilless part of the mountain-face. 1971Daily Tel. 2 Oct. 8/3 Put each young plant in a pot of its own..using..one of the peat-based soilless mixtures.
b. Applied to methods of growing plants without soil. Cf. hydroponics.
1938Sat. Even. Post 20 Aug. 14/2 Having caught the public imagination, soilless farming has the trappings of another ‘bubble’. 1946Soil Sci. LXII. 71 Artificial or soilless cultures have been used very extensively during the last 30 years in plant nutrition studies. 1974D. Harris Hydroponics ii. 45 Although called variously ‘aggregate culture’, ‘soil-less culture’, ‘nutriculture’, or ‘chemiculture’, Dr Gericke's term is so universally used that all forms of growing plants without soil are loosely referred to as ‘hydroponics’.
▪ II. ˈsoilless, a.2
[f. soil n.3]
Free from soil or stain.
1868Geo. Eliot Spanish Gypsy i. 61 As innocent as opening flowers,..soilless, beautiful. |