银杏树一旦错过人工授粉的时机，就会挂不住果或很少挂果，造成减产。因此，适期授粉很重要。具体应掌握以下要点： 雄花粉的采集。优质的雄花颗粒饱满，色黄而透绿，手一捻呈浆糊状，黄粉在阳光下更加清楚。一般在清明至谷雨期间，当雄树花序由青转淡黄时采集花粉。可将花粉抖 Ginkgo tree once missed the timing of artificial pollination, it will hang hang fruit or rarely fruiting, resulting in reduced production. Therefore, pollination is very important. Specific should grasp the following points: male pollen collection. High-quality male flowers full of particles, yellow and transparent green, hand twist a paste, yellow powder in the sun more clearly. Generally during the Ching Ming to Valley rain, when the male tree inflorescence from yellow to yellow when collecting pollen. Shake the pollen