银杏(Ginkgo biloba)是我国的特产树种,种子可供食用和药用。它即是果木,又可作为用材或观赏树种。目前外国已有大量的引种栽培。银杏喜光、耐旱、适应性较强。它虽然生长比较缓慢、但在土肥水条件较好和精心管理下,也能速生丰产。我场于一九七五年引种,栽后管理粗放、长势不好。一九八○年春进行了修剪和施少量鹿粪、今秋观测当年平均高生长73公分、最高生长100公分、最低生长40公分。前五年平均高生长94公分。 Ginkgo biloba (Ginkgo biloba) is China’s specialty tree species, seeds for food and medicine. It is fruit trees, but also as timber or ornamental tree species. At present, foreign countries have a lot of introduction and cultivation. Ginkgo hi light, drought-resistant, adaptable. Although it grows slowly, it can produce fast-growing and high-yielding under the conditions of good soil fertility and careful management. My field was introduced in 1975, planted extensive management, growth is not good. Pruning and donating small amounts of deer manure were carried out in the spring of 1980. During the autumn of this year, the average annual growth of 73 cm, the maximum growth of 100 cm and the minimum growth of 40 cm were observed. The first five years average high growth of 94 cm.