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为了尽快落实毛主席关于“绿化祖国”,“实行大地园林化”的伟大号召,在省、地的亲切关怀和大力支持下,我县于1974年7月进行了首次油松飞机播种造林试验。飞播从18日开始到21日结束,共四天,飞行18架次。播种29,700亩(播后实测面积为27,467亩),其中国营面积16,696亩,占飞播实际面积的60.8％;社队集体面积10,771亩,占39.2％。一、播种后种籽出土、生长和越冬情况根据设计要求,每亩播种量为1市斤(每斤约13800粒,种籽纯度94.8％,发芽率90.3％),平均每平方米应落种籽21粒,实际落种17粒。
In order to expedite the implementation of Chairman Mao’s great call on “greening the motherland,” and implementing “the earth’s garden,” we conducted the first sowing trial of Pinus tabulaeformis in July 1974 under the gracious care and support of the province and the land. The aerial broadcast began on the 18th and ended on the 21st, for a total of four days, flying 18 sorties. Sowing 29,700 mu (measured after sowing: 27,467 mu), of which 16,696 mu is for state-owned camps, accounting for 60.8% of the actual area for aerial flights; and the collective area of communes and brigades is 10,771 mu, accounting for 39.2% of the total. First, after sowing the seeds unearthed, growth and winter conditions According to the design requirements, sowing rate of 1 kg per acre (about 13800 pound, seed purity 94.8%, germination rate 90.3%), the average per square meter should fall Seed 21, the actual seed 17.