虽然听起来有些意外,但是在给植物浇水时,经常发生的情况往往是浇太多水,而非没浇够水。尽管知道浇水过量的危害,大多数经验不足的园艺爱好者还是会犯错。水太多会影响植物进行气体交换,导致植物无法正常吸收氧气和营养物质。还好,这个问题并非无法解决。先对植物的状况进行评估,然后你就可以按照下面的方法让植物起死回生了。
步骤
部分
1
部分 1 的 3:
评估土壤的湿度
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1
把植物从阳光下转移到阴凉处。就算是完全处于光照中的植物也会受因为浇水过量而受损。
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2
观察叶片的颜色。如果叶片呈浅绿或者黄色,说明植物土壤中的水分太多了。如果新长出来的叶子不是绿色,而是棕色,也说明土壤存在同样的问题。
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3
查看花盆的底部。如果花盆底没有任何排水孔,那么多余的水就会聚集在花盆里,妨碍根部正常呼吸,损害植物健康。要想让植物重新焕发生机,你需要将植物转移到排水性能良好的新花盆里。
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4
观察土壤的颜色。观察土壤表面是否因为过于潮湿,而长出了绿色的藻类植物。如果真的长出绿藻,那么整盆土都要换新的。
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5
观察植物是否有枯萎凋零、没有新芽长出的迹象。这些迹象说明土壤湿度过大已经严重威胁到了植物的生命。[1]
部分
2
部分 2 的 3:
照料被浇了太多水的植物
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1
把植物置于阴凉处。如果土壤湿度太大,植物就无法将水分输送到顶部。虽然土壤在阴凉处干得更慢,但是植物的压力没有那么大。
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2
敲击花盆四周,把植物根部的土敲松,和花盆边缘分离。轻轻抓住土壤表面或者植物顶部,将植物取出。
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3
把植物放在花盆外面,几个小时或者半天后再进行移盆。建议把植物暂时放在金属网烘烤架上,让流动的空气风干植物潮湿的根部。观察植物的根部是否是棕色的。健康的根应该是白色的。
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4
准备一个带排水孔的花盆。在花盆底部铺上一些小石子,或者放上一张网格垫,为排水提供足够的空间。
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5
小心地把长有绿藻的土弄掉,注意不要伤到植物的根。把掉落的土扔进垃圾桶。
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6
检查植物的根是否有腐烂的现象。如果根部散发异味,而且已经腐烂成了和堆肥相似的物质,那么换盆前,你需要修剪根部。只需要剪去那些确定患病或者腐烂的部分。[2]
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7
把植物放进新的花盆,然后在根的周围填上新的土。
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8
如果室外非常炎热,就在叶片上喷些水。这么做可以在不过度增加土壤湿度的前提下,保证植物获得适量的水分。
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9
等到表层土变干再浇少量水。在花盆底部放一个碟子,用来接住多余的水。
部分
3
部分 3 的 3:
让植物的生长恢复正常
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1
表层土变干后再浇水。不要等土壤干透了才浇水,这样植物会一时无法适应。每次浇水前,务必检查土壤的湿度。
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2
当植物有新芽长出时再施肥。只有健康的根系才能吸收肥料中的营养。另外,肥料会把患病的根系“烧死”。[3]
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3
植物开始长出新芽后,可以在头两次浇水的时候都施肥。这样做可以为植物的康复提供更多营养。
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4
植物彻底康复后,每浇7到10次水,就施一次肥。
小提示
- 如果你总容易浇太多水,不妨去园艺店或者上网购买土壤湿度计。把探头插进土里,仪器就会显示土壤的湿度。每次根据仪器的数据来给植物浇水就可以了。
你需要准备
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阴凉的地方
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有排水孔的花盆
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新的盆栽土
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金属网烘烤架
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喷壶
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化肥
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小号修枝剪
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土壤湿度计(可选)