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金县友谊公社光明大队第二生产队1972~1973年对黄瓜种子进行了“变温催芽”塑料大棚栽培试验(1972年亩产10,000
Golden County Friendship Brigade Brigade production team from 1972 to 1973 cucumber seeds were “temperature sprout” plastic greenhouse cultivation test (1972 mu 10,000