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杂交粳稻于1975年试验成功后,1976年在辽宁进行小面积试种表现很好,1978年即推广40多万亩,1979年南移至北京地区推广10多万亩,1980、1981年相继在山东、陕西、河南等地推广。据1981年不完全统计,全国推广杂交粳稻面积近100万亩,主要组合是黎优57。长江流域各省也先后开展了适应
After the successful test of hybrid japonica rice in 1975, it performed well in small area test in Liaoning Province in 1976. In 1978, it spread more than 40 million mu. In 1979, it moved south to Beijing to promote more than 10 mu. From 1980 to 1981, Shandong, Shaanxi, Henan and other places to promote. According to incomplete statistics in 1981, nearly one million mu of hybrid japonica rice fields were popularized across the country. The main combination is Liyou 57. The Yangtze River Basin provinces have also carried out adaptation