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1978年我省杂交水稻制种面积达到23万多亩,比1977年扩大近一倍。据对省内10个地、市103,493.96亩制种田统计,杂交种平均亩产84.7斤,比1977年亩产60.7斤增长39%;比1976年全省平均亩产42.3斤,增产一倍,两年时间亩产翻了一番。1978年全省有两个地区制种亩产超百斤:嘉兴地区14,249.15亩制种田,平均亩产122.4斤;杭州地区25,831.38亩制种田,平均亩产111.01斤。1977年全省有2个县平均亩产超过百斤,1978年有16个县亩产超百斤。这16个县制种面积共45,656.62亩,平均亩产117.47斤。其中最高的临安县,制种田面积共
In 1978, the province’s hybrid rice seed production area reached 230,000 mu, more than doubled in 1977. According to the statistics of 103,493.96 mu farming in 10 prefectures and cities in the province, the average yield of hybrids is 84.7 kg, 39% more than that of 60.7 kg per mu in 1977; 42.3 kg more than the average yield of the province in 1976, doubling the output Mu time per year doubled. In 1978, there were two areas in the province where seed production exceeded 100 kg per mu: 14,249.15 mu of farmland in Jiaxing and an average of 122.4 kg of mu per mu; and 25,831.38 mu of land in Hangzhou were planted with an average yield of 111.01 kg per mu. In 1977, the average yield per mu of two counties in the province exceeded 100 kilograms. In 1978, there were 16 counties with over 100 kilograms per mu. The 16 counties have a total area of 45,656.62 mu, with an average yield of 117.47 kg per mu. One of the highest in Lin’an County, the total area of farming system