Effects of Shading Degree on Storage Rate and Growth of Phoebe bournei Seedlings in Fields

In the research, four shading treatments were set, including the treatments with shading degrees at 0, 40%, 60% and 70%, in order to explore storage rate and seedling growth of annual Phoebe bournei. The results showed that the storage rate is growing upon shading degree. In the research, for example, storage rate reached the peak with the shading degree at 70%, and only 42.2% with shading degree at 0. In addition, seedling height and ground diameter showed extremely significant differences among treatments, and the treatment with shading degree at 60% was the best.

民兵应急分队参与搜捕行动应遵循的原则

参与搜行动,是民兵应急分队可能担负的重要任务之一。搜捕行动具有政策性强、处置难度大、指挥复杂等特点。因此,民兵应急分队在执行搜捕任务时应遵循以下原则。 一、快速反应,以快制快。搜捕行动一般任务紧急,对抗性强,情况变化快,战机稍纵即逝,准备时间短促。因此,必须始终坚持一个“快”字,做到行动准备快,定下决心快,部署任务快,投入战斗快,情况处置快,撤离现场快。具体讲。