本人种植盆景已20年,累计不少于五十株的树桩死亡。除由于病虫害和用药施肥失当外主要有以下几种原因。(1)修剪过度。这好比水的管道多处破裂使后端失压。树桩也常因过度修剪,使其体内失压而先造成顶端枯死,失去光合作用,进而根部死亡而无法挽救了。解决的办法是在大修剪后应即在主要的创口上封蜡。(2)修剪不适时。也是造成树桩死亡的一个原因。树木和果树地栽时,根系发达,适应能力强,常在休眠期进行修剪。而盆景如在休眠期重剪,就极易造成死亡。所以把握适时修剪很重要。在早春树桩生长旺季修剪后,极易得到康复。(3)浇水过多。新植树桩经修剪或根部有损伤只要浇一次透水即可。之后见干才浇。如浇水过量,伤口尚未愈合极易感染病菌而造成死亡。另外,过多浇水容易使透水 I planted bonsai for 20 years, accumulating a total of not less than 50 stumps dead. In addition to pests and diseases due to misuse of fertilizers, there are several main reasons. (1) over-trimming. This is like multiple ruptures of water pipes that depressurize the back end. Stump often due to excessive pruning, so that the body of the first loss of pressure caused by the top dead, loss of photosynthesis, and then the root died and could not be saved. The solution is to wrap the wax on the main wound after the big trim. (2) Prune unsuitable. It is also one of the causes of the stump death. Planting trees and fruit trees, the root system developed, adaptable, often in the dormant period of pruning. The bonsai, such as heavy in the dormant period, it is extremely easy to cause death. So grasp the timely pruning is very important. In early spring stump growth season pruning, easily get rehabilitation. (3) Too much water. New pruning stump or root damage as long as the water can be poured once. See after pouring dry. Such as excessive watering, wound healing has not yet easily infected with bacteria and cause death. In addition, too much water easily permeable