摘要
小麦被普遍推广到南方,需要与当地农作物进行轮作复种。在水稻插秧技术出现之前,直播式种植方式使水稻用地时间过长,以致贻误下一茬作物的农时。插秧技术出现后,为稻麦复种在时间与空间上都提供了可能。水稻插秧技术始于唐代,盛于宋代,为推广小麦的种植范围提供了先决条件。南宋时期北方人口大量南迁,又进一步促进了稻麦两熟制的实行与小麦种植范围的扩大,使小麦的种植范围逐渐从江北移向江南,从旱地岗阜移向平原地带。
Wheat had to rotate with other crops when it was spread to regions south of the Changjiang River. Before the appearance of the skill of transplanting rice seedlings, rice used cultivated land so long that the right season for the next crops was missed. This skill, which began to be used in the Tang Dynasty and ripened in the Song Dynasty, provided a prerequisite for widening the scope of rice-growing. The southward moving of large numbers of the northern people during the Southern Song Dynasty further promoted the rice-wheat cropping system and the expansion of the wheat-growing area so that wheat gradually came to be grown extensively in regions south of the Changjiang River and on plains instead of on dry and hilly lands.
出处
《自然科学史研究》
CSCD
1992年第4期353-357,共5页
Studies in The History of Natural Sciences
关键词
水稻
秧播
小麦
种植区
宋代
Transplanting of rice seedlings, wheat-rice cropping system, expansion of wheat-growing area
