怎样防止兰花烂根

2025-01-21 17:59:49
推荐回答(3个)
回答1:

  

  水乃万物之源,兰花的生长必须有水分才能进行养分吸收输送,并进行正常的代谢作用。兰花是属于气根性植物,在其生长过程中所需水分来源,一小部分由空气中的湿气供给外,大部分的水分必须由栽培的基质所含的水分吸取,兰根还要从兰盆内的基质孔隙中吸取氧气进行呼吸。倘若兰盆内的基质排水不良,含水率过高,水就会充满基质孔隙,造成积水现象,基质孔隙被水占满而缺氧气,根系缺氧窒息,久之根系功能逐渐丧失,此时又因有害病菌的侵入繁殖,根系即会因此而腐烂.。


  一、选取配好种兰基质。


  种兰基质要滤水透气,润而不涝,干而不燥。现在市埸上售的兰花种植专用质料很多,也很适用,如四川的峨眉山土、崇州的膨化土,广东的多种兰花专用土,都是很好的兰花栽培质料。也可在这些质料中掺上部分腐叶土以补充肥力不足。也可就地取材,如风化土、碎砖粒、碎炭粒、碎栎树皮等,掺上适量腐叶土,效果也很好,既能滤水透气,又保湿不涝,还有一定的肥力。但要注意,所用质料必须无毒、无菌、无污染、无虫卵寄生,否则也会给兰花根系带来危害. 。


  二、浇灌兰花的水一定要洁净。


  污染的水、不清洁的水不能用。有很多兰花书籍介绍,溪水、河水最宜兰花生长,但是大多数兰友都是住在城市,又不是专业经营兰园,要按此要求就很难做到。用自来水浇灌兰花,笔者从多年实中看,效果也很好,有条件的话把自来水用桶或盆放上几天,让水中之氯元素挥发掉那就更好。倘若用泉水或池塘水浇兰,应要注意用PH值试纸测试基酸碱值,PH值小于5,可添加石灰之类碱性物质进行调节,PH质大于6.5,可用盐酸、醋酸、柠檬酸等进行调节。


  三、不论用什么质地的兰盆,盆底一定要有适当的孔眼,盆壁下部周围有几个孔眼就更好。

  不论用什么质地的兰盆,盆底一定要有适当的孔眼,盆壁下部周围有几个孔眼就更好。总之,要能通气滤水。栽植兰花时兰盆下部可垫一层碎砖粒或炭粒,以利排水透气。兰盆的放置,要使盆底和盆壁的空气流通,有条件的话可用兰花架架空兰盆,这样效果更佳。要养成好兰花需要有适宜的温度、湿度、光照等环境,但是给兰根创造一个良好的环境是最重要的一环,培养好兰根,也就可以培养出理想的兰花。


回答2:

兰花的根较为粗壮、肥大,一般无主根与支根之分,差不多一样粗细,是典型的肉质根。根的最外层是根被组织,中层为皮层组织,细胞比较发达,根的内层为中心柱,即兰根腐烂后留存的线状的“筋”。人们在莳养过程中,常有分株、移栽不慎折断根系造成创伤,或用土过细、肥量过大、浇水过勤过多引起烂根。根子一烂,兰苗就死了,俗称“倒苗”,这是养兰人最头痛、最痛心的事。兰花为什么烂根呢?其中主要原因是长期浇水过勤过多,盆土泥泞不堪,水分挤走了空气,阻碍了根系的呼吸作用,兰根无氧,造成了根系窒息,引起腐烂,俗称“淹死了”。农田中的庄稼在大水中泡了几天后,全部死了,就是这个道理。防止烂根的方法:为了保全根系,首先一定要使用透气性好的土,常用的有树皮、木炭、碎砖粒、陶粒等,粒与粒之间有一定空隙,空气与水的置换率快,浇多大水也不存在积水现象,有利于兰根的生长。其二要合理施肥。兰根怕浓肥,怕生肥,没有充分腐熟(沤制)的肥料绝对不能使用。养兰最好使用无机化肥。但不能使用单一化肥,应当使用全元素复合肥,这种肥料营养全面,而且用量少,容易掌握,能增加抗病能力,并防止生理病害和虫害。

回答3:

兰花烂根是在兰花养殖当中最容易发生的,兰花的根烂了不及时进行救治,兰花只能走向死亡,无论是养兰的新手,还是养兰的老手都会出现烂根的情况,老手经验丰富,烂的几率小,就是说兰花是否烂根还是和养兰技术有关。

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