推荐回答(1个)
可以的,如果长期不翻盆,老根、空根、烂根会将花盆长满,新根无法萌发,兰花就会进入缓慢生长阶段,不爱长新叶,不长新芽,也不开花。
正常生长的兰花,一般都是冬天长花芽,春末夏初长叶芽。但有些花友养的兰花既不长花芽也不长叶芽,甚至一年下来新叶都没几片,就像塑料花一样,让人很无奈,这是怎么回事?这种情况大多是根系不好导致的,没有新根萌发生长,老根勉强能维持生命,压根没有精力去开花散枝,就只能假装是塑料花。那么我们怎样让兰花多发新根,多长新芽,需要从以下几点入手。
1、植料要合适
兰花植料问题已经说过多次了,它是兰花健康生长的基础,一定要保证疏松透气性,否则后期问题很多。另外,植料也要做好杀菌消毒工作,不要随便哪里挖点土就用来种兰花,容易被病菌感染。对于什么植料最好这个问题不做探讨,没有最好,适合自己的才是有用的。兰花喜欢微酸性环境,植料偏碱性不但不生长,还可能会要了兰花的命。所以选择植料的时候也要考虑一下酸碱性,避免用碱性的植料栽种兰花。
2、长期不翻盆
养护兰花一到两年最好换一次植料,一方面防止时间长了植料板结和过于贫瘠,另外一方面趁着换植料可以对兰花根部进行修剪,剪掉烂根、空根,对过长的老根也可以适当剪短,从而刺激新根生长。如果长期不翻盆,老根、空根、烂根会将花盆长满,新根无法萌发,兰花就会进入缓慢生长阶段,不爱长新叶,不长新芽,也不开花。
3、施肥不合理
兰花想要生长肯定离不开肥料,如果长期不给兰花施肥,植料过于贫瘠,兰花就会停止不长,叶片枯黄无光泽,没有新根长出,没有新芽长出,妥妥的塑料花。气温介于15~25度之间时,最少每月要给兰花施肥一次。生殖生长期施肥偏磷钾一点,营养生长期施用翠姆氨基酸叶面肥。如果兰花叶子正常,长期不长新芽,可以在温度合适的时候单独施一两次翠姆磷酸二氢钾肥,刺激新根长出。
4、通风差或者光照不合理
兰花喜欢空气流通性好的环境,如果把兰花长期养在一个密闭空间,长势会变得很差很差,维持生命都难,更别说长新芽了。另外,兰花属于半阴性植物,不可以强光暴晒。常年光照过强会使兰花黄叶黄尖,同时停止生长。一般来讲,秋季、冬季和早春,可以多给兰花晒晒太阳,其他时间都需要一定程度的遮阴。
5、浇水不合理
给兰花浇水过多或者过少,都会影响根系的生长和新芽的萌发。如果浇水过多,根系容易缺氧腐烂或者老化。如果浇水过少,根系容易变空、活性降低。所以给兰花浇水真的需要好好下下功夫,否则想把兰花养好就难。兰花是肉质根,浇水不能完全等到干透了再浇,植料偏干一些的时候就要补充水分。另外,不同的季节给兰花浇水的方法也不一样。花芽分化期盆土要偏干一点,花芽孕育期和叶芽生长期水分供应要充足一点,气温过低时盆土要偏干一点。
一般来讲,不长叶芽的兰花芦头都不是很饱满,因为根系不好,吸收的养分水分少,芦头里储存的养分自然也就少。大多数情况下兰花不长新芽长势弱都是吸收能力不好,而不是施肥不足,要么根系太过老化或者孱弱,养分水分吸收能力差,要么叶片稀疏或者发黄,光合作用不充分。
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