Champa early-ripening rice
Arroz de ciclo corto de Champa
- Date
- 1012 · confidence high
- Place
- Fujian, Song China (imported from the kingdom of Champa, Vietnam)
- Credited to
- Emperor Zhenzong of Song (distribution of 30,000 bushels)
- Field
- Life & health
What it is
A drought-resistant rice variety that ripens in 60–100 days, imported from Champa and distributed by the Song state. It allowed two harvests a year and the cultivation of hillsides and upland terrain.
What it led to
- a doubling of China's population (100 million by around 1100) and Song urbanisation
- commercial agricultural markets and a monetary economy
- terracing and expansion south of the Yangtze
Built on
- Irrigated paddy fieldc. 4200 BCE
- irrigated rice
- variety selection (plant breeding)
Made possible
- Ifugao rice terracesc. 1650 (muy discutido)
- double annual harvest