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据国际水稻研究所1971年实验,每亩水稻年产可达3420斤。实验是在6公尺×14公尺区段内以三个品种两次重复进行栽培的。全年栽培四期:第一期使用的水稻品种是IR_8,于1月18日插秧,3月7日收割,产量每亩1.171斤。在第二期和第三期栽培,品种为IR_(747)B_2,是早熟品种,从插秧到成熟只有75天。第二期栽培是5月10日插秧,7月22日收割,亩产713斤。第三期栽培是7月26日插秧,10月6日收割,亩产847斤。第四期栽培使
According to the International Rice Research Institute experiment in 1971, the annual output of rice per mu can reach 3420 kg. Experiments were conducted in duplicate on three varieties within a 6 meter by 14 meter section. Cultivation of four throughout the year: the first phase of rice varieties used is IR_8, transplanting January 18, March 7 harvest, yield 1.171 kg per mu. In the second and third cultivars, the cultivars were IR_ (747) B_2, which was a precocious variety with only 75 days from transplanting to maturity. The second cultivation is transplanting rice on May 10 and harvesting on July 22 with a yield of 713 kg per mu. The third planting is transplanting on July 26, harvesting on October 6, yielding 847 kg per mu. The fourth cultivation