1965 [1965 July 15], “The "Kwang-ch'ang-ai" and "Chen-chu-ai" Breeds”, in AGRICULTURAL DEVELOPMENT SUSTAINED BY CROP IMPROVEMENT IN CHINA[1], CIA, published 2003, page 6:
In Ch'iung-hai Hsien of the same island, this year "Chen-chu-ai" has been cultivated over vast areas, yielding large increases and as 2,730 tons of the breed already harvested in June have been sent to Chekiang province, it is expected that it will be cultivated widely in Chekiang in 1966.
HAINAN COUNTY'S HYDROELECTRIC POWER--At present, Ch'iung-hai County has completed building 42 small hydroelectric power stations, with a total installed capacity of 3,362 kilowatts.
