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一九七一年,我所哈尔墩苗圃直播文冠果0.87亩,株行距1×1米。植后第二年开始结果,产量逐年上升,七七年总产达240斤。一九七八年春,隔株间伐为2×2米,加强施肥、灌水、修剪等技术措施,一九七九年产量迅速回升,由七八年的94斤增到172斤,增长45.4％。一九七五年,本所飞机场苗圃定植50亩2—5年生文冠果种子园,七九年为生产上提供种子800斤,其中嫁接本所选择的1—8号优树13.5亩,树龄三年,全部结果。
In 1981, Harbin Halun nursery broadcasts a crown of fruit of 0.87 mu, spacing of 1 × 1 meter. The second year after planting results began, the output increased year by year, total production in 2007 reached 240 pounds. In the spring of 1978, the plantation cut was 2 × 2 meters. Strengthening the technical measures such as fertilization, irrigation and pruning, the output rose rapidly in 1979, from 94 to 782 in 1978, an increase of 45.4%. In 1975, 50 acres of 2-5-year-old crown seed orchard were planted in our airport nurseries. In 1997, 800 seeds were provided for production. Among them, Three years old, all the results.