单词 | rock phosphate |
释义 | > as lemmasrock phosphate rock phosphate n. any sedimentary rock containing a high proportion of phosphates, often used as a fertilizer; phosphorite. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > other sedimentaries dunstonea1613 rock phosphate1852 psammite1882 tillite1907 flowstone1925 tilloid1931 turbidite1957 1852 Cultivator Jan. 57/2 It is the rock phosphate that is referred to—not bones—but it is desirable to learn their comparative effects. 1936 J. C. Brown India's Min. Wealth (ed. 2) x. 225 The problem of the utilization of Indian rock phosphates demands more research than it appears yet to have received. 2002 OG Nov.–Dec. 37/1 Based on your soil tests, add organic amendments—such as rock phosphate to correct a phosphorus deficiency. < as lemmas |
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