修剪时间:针叶树修剪的时间很重要。许多都含有丰富树脂,修剪时会形成伤流。而生长旺盛期伤流更严重。因此在早春萌发期、夏季的第二次生长活跃期内不要修剪。修剪的最佳季节为秋季与隆冬,可使伤流降到最低程度。领导干的诱引大多数针叶树都有强壮的中央领导干,许多若在幼年期或青年期受伤也会自然形成领导枝。若发生枝条损伤,立即设法诱引替换领导枝。对大 Pruning time: The time for coniferous pruning is very important. Many are rich in resin that can cause wounding when pruned. The growing blood flow is more serious. Therefore, in the early spring germination period, the summer should not be pruned during the second active growth period. The best season for pruning is fall and winter, which can minimize the wounds. Leading cadres Most conifers have strong central leadership and many lead leaders naturally if injured in adolescence or adolescence. In the event of a shoot injury, immediately try to induce the replacement leader. To big