| 词汇 | thistle |
| 释义 | thistle noun[ C ] uk /ˈθɪs.əl/ us /ˈθɪs.əl/ a wild plant with sharp points on the leaves and, typically, purple flowers: 蓟（叶带尖刺，多开紫色花） The thistle is the national emblem of Scotland.蓟是苏格兰的国花。 AYImages/E+/GettyImages Common plants African violet agave aloe aloe vera alpine strawberry dianthus dichondra dieffenbachia dill weed dracaena liquorice loganberry maidenhair fern maize mandrake snake plant sorrel sotol sow thistle Spanish moss thistle | American Dictionarythistle noun[ C ] us/ˈθɪs·əl/ a wild plant with sharp, pointed leaves and, typically, purple flowers Examples of thistlethistle Three mowings per season provide a better thistle control than two mowings. The biggest part of such emerged thistles was covered by the already fast developed clover plants. This initial thistle density was the basis for the efficacy determination of all control measures. Other studies have demonstrated the importance of a dense competitive crop stand for successful thistle suppression12,13. Repeated mowing of forage such as alfalfa or legume-grass mixtures can severely reduce thistle density. The need for the latter is also emphasized by the frequent choice of thistle seed cake and malt culms as potential feedstuffs. One can assume, that particularly under water stress, repeatedly disturbed and seriously weakened thistles were no longer able to emerge in our experiment. Only a few thistles in several patches grew undisturbed. In our experiment, the regenerative capacity of thistles was considerably lower than that of clover when ryegrass- clover ley was mowed and/or mulched. Go, neddy, and you shall have an additional feed of thistles. Generally, the different strategies showed only minor differences, thus delivering options for optimal strategies of thistle control under given specific conditions of sites and cropping systems. I have known fields that in the last 10 years have gradually disappeared, encroached upon by bracken, thistles, or ragwort. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We have seen to our sorrow miles of it, full of thistles, reeds and rubbish, and producing little. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Grapes cannot be won from thorns, or figs from thistles. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 This could include noxious weeds like thistles or willow-herb, which can sow themselves on adjoining land. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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