| 单词 | θ53607 |
| 释义 | the world > food and drink > farming > gardening > equipment and buildings > [noun] > artificial soil or compost (9) potting soil1861 potting compost1891 osmunda1910 More fully osmunda fibre, osmunda peat. A growing medium made from the roots or stems of osmundas (esp. Osmunda cinnamomea and O. claytoniana)… osmundine1932 Osmunda fibre (see osmunda, n. 2). John Innes1939 attributive. Designating potting composts and fertilizers made according to formulae developed at the John Innes Horticultural Institution, and… vermiculite1950 Mineralogy. Flakes of this mineral used as a moisture-holding medium for plant growth or as a protective covering for the storage of bulbs or tubers. perlite1956 A glassy volcanic rock containing numerous concentric spheroidal cracks associated with the cooling that occurred during its formation (also called… Inceptisol1960 A soil of a widespread type in which the formation of distinct horizons is at an early stage, and which shows little evidence of severe weathering. Subcategories:— fine white sand (1) |
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