| 词汇 | potash |
| 释义 | potash noun[ U ] uk /ˈpɒt.æʃ/ us /ˈpɑːt.æʃ/ a white powder containing potassium that is put on soil to make crops grow better钾碱，碳酸钾，草碱 Improving fertility & pest control agrochemical anti-pesticide antifungal bonemeal coir fertilization fertilizer Frankenfood frass fructify irrigate manure mulch over-fertilization over-fertilize paraquat unfertilized unirrigated vermicompost weedkiller Examples of potashpotash There is some indication that potash levels declined before the application of potassium sulphate in 2002, but trends are not significant. Plots were dug manually before basal fertilizer (diammonium phosphate and muriate of potash) or compost was applied prior to sowing wheat. The whole amounts of single superphosphate and muriate of potash were applied as a basal application. This is usually an advantage in experimental work, but for certain experiments it renders potash unsuitable. These structures can, however, be restored by maceration in caustic potash but the best results may be obtained by preserving the specimens in alcohol. The gas developed in this process is absorbed up to 2/3 by caustic potash and blackens quickly a lead-salt solution. The previous paper included a curve relating the humidity of air to the concentration of a solution of potash, expressed as grams per 100 cc. of water. For example, we will consider the relationship of the amounts of phosphorus and potassium removed with seed and fruit crops to the applications of phosphate and potash fertilizers. Several workers, ourselves included, have found this curve to be inconvenient under tropical conditions, because it is necessary to titrate the potash solution in order to know its strength. Fertilizer nutrient sources were urea, single super-phosphate and muriate of potash. The best soils, having had good fertiliser applications for many years, are now creating good soil stati of potash and phosphate. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The raw materials which he agreed to supply were pitch, chrome, ephedrm (that is for asthma), magnesite, potash, potassium, timber, canned salmon. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 They have abandoned permanganate of potash, which we have been told is a specific disinfectant. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 This may be to railwaymen a shockingly unorthodox and perhaps impracticable suggestion, but would it not be possible to mix passengers and potash? From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I regret that the available supplies are insufficient to permit of any potash being released for fruit orchards. 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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