Champa Rice Cultivar

Timeline

1. 900–1000Kingdom of Champa · ChampaIn the 10th–11th centuries the Champa kingdom grew early-maturing rice along the mainland Southeast Asian coast, with a growth period of about a hundred-odd days, drought- and poor-soil-tolerant, suited to the tropical monsoon climate. Champa traded frequently by sea with the Song dynasty, and rice varieties entered the Fujian coast via trade routes and embassies, becoming the foundational material for later introduction to Jiangnan.
2. 1012–1020Fujian Circuit · FujianDuring the Dazhong Xiangfu era of Emperor Zhenzong of the Northern Song, the court sent envoys to obtain 30,000 hu of rice seed from Champa, which was successfully trial-planted in Fujian. The early-maturing trait of Champa rice allowed it to avoid Fujian's autumn cold snaps; the Song court compiled cultivation methods into agricultural treatises and encouraged imitation elsewhere, marking the variety's formal entry into the Central Plains agricultural system.
3. 1050–1300Liangzhe Circuit and the Jianghuai region · JiangnanFrom the 11th to 14th centuries Champa rice spread along the lower Yangtze into Jianghuai and Liangzhe, used in rotation with late rice or replacing some mid-season rice. Chen Fu's Nong Shu and other texts recorded its cultivation methods; its early maturation significantly raised Jiangnan grain output, providing the agricultural foundation for the Southern Song's settlement in Jiangnan and spurring the beginnings of double-cropping rice systems.
4. 1400Rice-growing regions of southern China · Southern rice regionsFrom the Ming and Qing onward, Champa rice hybridized with local varieties through selective breeding, producing many early-maturing local rices. Modern agricultural history regards it as a model of Sino-foreign crop exchange, and early-maturing, drought-tolerant genes in modern rice breeding can still be traced to this introduction. Double-cropping rice and rice–wheat rotation systems took shape in Jiangnan, with Champa rice as one of the key historical starting points.