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去年,朝阳县十二台公社1,280亩棉田,完全利用自然天敌控制了蚜害,获得了平均亩产皮棉90斤的好收成。 1976年,这个公社大营大队第五
Last year, 1,280 mu of cotton fields in 12 communes in Chaoyang County completely controlled natural aphids using natural enemies and obtained a good harvest of 90 pounds of average mu lint. In 1976, the commune battalion battalion fifth