| 单词 | osmunda peat | 
| 释义 | > as lemmasosmunda peat  2.  More fully  osmunda fibre,  osmunda peat. A growing medium made from the roots or stems of osmundas (esp.  Osmunda cinnamomea and  O. claytoniana), used for orchids. ΘΚΠ the world > food and drink > farming > gardening > equipment and buildings > 			[noun]		 > artificial soil or compost potting soil1861 potting compost1891 osmunda1910 osmundine1932 John Innes1939 vermiculite1950 perlite1956 Inceptisol1960 1910    Gardeners' Chron. 5 Nov. 329/3  				He [sc. H. G. Alexander] decided that Osmunda fibre was the best material procurable. 1932    Bull. Amer. Orchid Soc. Dec. 87/2  				Osmunda fibre taken from swampy land should not be used. 1942    A. Laurie  & V. H. Ries Floriculture xix. 460  				Osmunda peat makes the best medium for this group [of epiphytic orchids]. 1951    Dict. Gardening 		(Royal Hort. Soc.)	 III. 1440/2  				Osmunda is at present the best material for general use [in potting orchids] but in fact several other fibres are in use to eke out and modify Osmunda fibre. 1959    Listener 17 Dec. 1094/3  				A piece of osmunda fibre, or wire netting filled with moss and fastened round a cane, can be driven into the pot and kept moist with spraying. 1966    T. B. Morris Orchids with Murder i. 7  				The pleasantly familiar smell of damp loam and sphagnum and osmunda fibre. 1974    C. L. Withner Orchids: Sci. Stud. iii. 154  				Osmunda fiber plus water provided adequate fertility for orchids. < as lemmas  | 
	
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