| 单词 | three-field | 
| 释义 | > as lemmasthree-field   three-field adj. noting a method of agriculture in which three fields are worked on a three-course system of two crops and a fallow. ΘΚΠ the world > food and drink > farming > cultivation or tillage > 			[adjective]		 > systems of cultivation Virgilian1724 open field1728 three-field1869 intercultural1878 no-tillage1911 monocultural1915 polycultural1915 monoculture1933 slash-and-burn1942 slashed and burnt1949 1869    Ann. Rep. Commissioner Agric. 1868 156 in  U.S. Congress. Serial Set (40th Congr., 3rd Sess.: House of Representatives Executive Doc.) XV  				The Polish three-field farming. 1907    M. C. F. Morris Nunburnholme 251  				Supposing the three-field system to be adopted. < as lemmas  | 
	
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