发布时间:2025-02-02 19:47:48
应该在种植浇水后马上打支撑,支撑树干,一般采用三柱支撑固定法,将树木牢固支撑,确保大树的稳固,防止倒伏,并打好遮阴网,遮阴网要高出为主,修剪量一般为1/5-2/5。对易挥发 芳香油和树脂的针叶树、香樟等植株顶端1.2-1.5 为宜。一般一年后,大树根系恢复好方可撤除。
求教标准集装箱尺寸请包含冷藏柜尺寸网路上对于各种集装箱尺寸众说纷纭
2025-02-02 19:47:48 2025-02-02 19:47:48光敏二极管为什么要反接光敏二极管为什么要在反向电压作用下才能正常工作
2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48 2025-02-02 19:47:48