植物烂根如何处理：剪除烂根部分，伤口消毒，重新栽种

植物图片 2019-07-01 10:56

我们在养殖花卉的过程中，会经常遇到各种问题。植物浇水过多、施肥欠妥、管理不善等，往往是造成烂根的原因。那么，我们该如何判断植物是否烂根呢？烂根后又给如何处理呢？接下来小编将为大家一一讲解。

植物烂根如何处理

 

怎样判断植物是否烂根

一、怎样判断植物是否烂根？

1、浇水识土。

在夏秋天节，生长正常的花木，在晴好天气每天浇1次透水，到了第二天同一时间检查盆土，盆土发干显露微白则根系正常；若不见其盆土收干发白，仍然呈潮湿状态，则说明植株根部已发生了烂根；若2～3天后仍然湿润如故，则说明该植物根系已大部分腐烂。

2、观察叶色。

如有相同种类的花木，可将它们摆在一起进行比对，若发现它们中某一植株的叶子失绿无光泽，呈灰白色，或者植株叶子呈萎蔫状态，或者下部叶子在不是换叶季节大量发黄脱落，则说明植株的营养须根因积水、施肥或过度干旱后猛浇大水造成发生了烂根。

3、查看叶形。

仔细观察盆栽花木的叶子，如果出现纵向皴皱和畸形，也表明植株的根系发生了腐烂。其主要出现于肉质根的花卉种类上，如鹤望兰、君子兰等。

由于下部营养根系腐烂，造成与其相连接的那些叶子的局部得不到应有的水分、养分，使该部分停止生长甚至出现萎缩，生长不同步，造成叶子纵向褶皱和畸形，这种情况虽不致于引起植株的死亡，但也会影响植株的正常生长和观赏。

植物烂根

4、注意叶尖。

有些花木种类，在种养了一段时间后，在叶子的先端会出现枯焦，造成这种情况有两个方面的原因：

（1）是由于植株的根尖伸展碰抵盆壁，在气温、土温较高的条件下浇水，造成肉质根先端行使营养功能的部分受损腐烂，使水分、养分不能运送抵达叶尖，引发叶尖部分坏死。

（2）是盆大花株小，盆土内长期处于积水状态，造成根系端腐烂，失去营养功能，叶子中间或边缘出现黄褐色斑块，则应考虑病害的可能性。

5、触摸手感。

有些花木或树桩，如五针松、柏类、罗汉松、兰花、山茶等，当发现其叶色失常时，可用手轻轻抚摸其叶子，凭手感可判断。

因根系腐烂而造成叶子没有生气的植株，手指尖的感觉是干燥、温热，没有正常叶子那种湿润、清凉的手感。

二、植物烂根如何处理

当判断出植株发生烂根后，应采取如下挽救措施：

首先，将植株从花盆中脱出，挑去外围宿土，找出烂根部位，用剪刀从其基部剪断烂根，继之用0.1{bf}的高锰酸钾液给伤口消毒，或用干净的草木灰敷贴创口，再重新换盆或下地栽种。

上盆或下地时伤口及根系受损严重部分，要用干净的湿沙围填好，再加盖干净的栽培用土，用以促进伤口处萌发新根。在换盆的同时，要对枝叶进行强度修剪，有时为确保其成活要剪去枝叶的80{bf}～90{bf}。在植株恢复生长的过程中，要保持盆土湿润，对干枝经常给予喷水，杜绝施肥，不要让盆土淋雨，以防发生再度烂根。

植物烂根如何解决办法

 

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