| 释义 |
double cropping
[double a. C.]
The cultivation of land so that two or more crops are grown in one season.
1873Young Englishwoman Sept. 446/2 In small gardens..from want of space, this system of double cropping is absolutely necessary. 1918R. E. Willard Status of Farming Lower Rio Grande 6 These 24 farms made average net incomes more than four times as great as those doing no double cropping. 1957Agric. Engin. May 312/1 The practice of burning grain stubble prior to planting soybeans..under a double cropping system in the Coastal Plain areas of the Southeast is widespread. 1977Sci. Amer. Jan. 32/2 The northern limits of double cropping in the U.S. have been extended for several hundred miles by no-tillage methods of planting.
Hence double-crop v. trans., to cultivate (land) by double cropping; also with crop as obj.; double-crop attrib. phr.; double-cropped ppl. a.
1918R. E. Willard Status of Farming Lower Rio Grande 13 It appears that where the farm is so operated as to have from 40 to 50 per cent of the crop acres (including double-cropped land) in truck crops, better returns are made than when less truck is raised. On these farms about 40 per cent of the crop area is double-cropped. 1956Agric. Res. Apr. 6/1 Southern farmers should find substantial advantages in double cropping soybeans and small grain. Ibid. 6/2 Results of the double-crop plan. 1969Listener 12 June 814/3 They too want the peasants to build more schools, to vaccinate hogs and introduce double-crop rice farming. 1977New Yorker 17 Oct. 43/1 It double-cropped most of its twenty-five thousand acres. 1980Christian Science Monitor (Midwestern ed.) 4 Dec. b7/2 Because of rural labor shortages, only 30 percent is triple-cropped and 50 percent double-cropped. |