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银杏为我国主要经济树种,又是珍贵用材树种,近20年来,国内外对其食品和药用价值开发利用广泛,使银杏叶、果价格倍增,成为国际市场紧俏商品。由于河南省政府的重视,近5年来,全省育银杏苗达8500亩以上,因初发展,各地缺乏技术,使银杏幼苗期病害严重。据调查,因遭各种病害苗木死亡率平均占47％,严重地块达65％以
Gingko is the main economic tree species in our country, and it is also a precious timber species. In the past 20 years, Ginkgo has been widely used in the development and utilization of its food and medicinal value at home and abroad, doubling the price of Ginkgo biloba and fruit and becoming a tight commodity in the international market. Due to the emphasis of the Henan Provincial Government, over the past 5 years, the province has raised more than 8,500 mu of apricot apricot Miaodao, due to the initial development of the lack of technology around the ginkgo seedling disease serious. According to the survey, due to various diseases, the mortality rate of nursery stock accounts for 47% on average, reaching 65% in severe land