桂花为何不发芽：注意开花习性和施肥时间

植物图片 2019-09-03 09:50

桂花是中国传统十大名花之一，桂花清可绝尘，浓能远溢，堪称一绝。尤其是仲秋时节，丛桂怒放，夜静轮圆之际，把酒赏桂，陈香扑鼻，令人神清气爽。桂花的养殖过程中会遇到不发芽的情况，本文针对这种情况进行原因分析和给出解决办法。

桂花为何不发芽

桂花为何不发芽

首先我们来看桂花的生长习性：

桂花喜温暖环境，宜在土壤层深厚，排水良好，肥沃、富含腐殖质的偏酸性砂质壤土中生长。

桂花不耐干旱瘠薄，在浅薄板结贫瘠的土壤上，生长特别缓慢，枝叶稀少，叶子瘦小，叶色黄化，不开花或很少开花，甚至有周期性的枯顶现象，严重时桂花整株死亡。

桂花喜阳光，但有一定的耐阴能力。幼树时需要有一定的蔽荫，成年后要求有相对充分的光照，才能保证桂花的正常生长。据观察，桂花单株树冠的一侧贴近墙面，或两棵桂花的树冠相互重叠时，贴近墙面的一侧或交错重叠的那部分树冠，很快变的稀疏，影响整个树冠的形体与漂亮。可见，桂花适合栽植在通风透光的地方。

桂花喜欢洁净通风的环境，不耐烟尘危害，受害后往往不能开花。

桂花畏淹涝积水，若遇涝渍危害，则根系发黑腐烂，叶子先是叶尖焦枯，随后全叶枯黄脱落，进而造成全株死亡。

总的来说：桂花喜光，稍耐荫，喜温暖和通风良好的环境，不耐寒，喜湿润排水良好的砂质壤土，忌涝地、碱地和粘重土壤；对二氧化硫、氯气等有中等抵抗力。

注意开花习性和施肥时间

桂花有两次萌芽，两次开花的习性，耗肥量大，宜于11-12月冬天施基肥，使翌春枝叶繁茂，有助于花芽分化；7月夏天，二次枝未发前，进行追肥，则有助于二次枝萌发，是秋天花大茂密。

桂花树比较娇气，以上所说的，每一点做不到，都有可能死亡、落叶、或者不发芽。你首先掌握好水量，千万不要涝。另外看看土壤是不是很粘很重，渗水很慢，这样也是容易造成不发芽。不过我个人认为应该是肥力不足，桂花需要大量的肥，赶紧多上点肥应该能够得到缓解。

桂花为何不发芽

 

移植的桂花树迟迟不发芽的原因：

1、桂花树是一种怕旱涝的树种，春天的雨水过多，如果移栽的地势过低又不能及时排水的话，很容易造成树根的腐烂，树叶发黄，不发新枝芽。

解决方案：选择地势高的、排水方便的农田或者栽堆土

2、运输过程中，土球出现散包情况，造成毛细根脱落严重，这种树的成活率往往不好。

解决方案：轻拿轻放土球

另提供两条合理性的建议：如果移栽的树出现以上情况，可对树进行打针--补充营养液，同时按照相关说明勾兑生根粉进行浇灌；同时要及时摘除树顶及冠幅四周枯萎的树叶，以免带走水分，剪掉已经枯萎的枝条

温馨提示：移栽大规格的桂花树最好的时机应选择在农历10、11月份，此时树的新陈代谢基本趋于稳定，树的嫩芽已完全老化，如果土球的规格能够按照树的杆径100{bf}带的话（如11公分杆径的树，带1.1米的土球），移栽的成活率基本没一点问题。

以上就是关于桂花树不发芽的原因分析和相应的解决办法，希望能帮助到大家。

专题： 桂花
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