银杏育苗不同遮荫方式效果比较

Comparison of different covers on raise seedlings of Ginkgo biloba L.

以黑色遮阳网覆盖银杏苗成活率高，为９４．３％；仅用玉米枝叶遮荫的效果最差，成活率为６１．５％，先用遮阳网，待玉米枝叶伸展后，去除遮阳网，其效果介于上述两法之间，成活率为７８．０％。

The survival ratio of Ginkgo biloba L. seedlings of used black shading net for covering reached 94 3%,that of used corn plants for covering is 61 5%,that of used black shading net before shady leave of corn plants grown is 78 0%