仙人掌类植物怎么样度夏?
仙人掌类植物怎么样度夏?到了6月份以后,气温逐日升高,大多数仙人掌类花卉进入旺盛生长的中后期,南方则是梅雨季节过后的持续闷热时节,有些种类的生长呈现下降或停滞的趋势。因此,6月份以后对仙人掌类花卉栽培管理应注意以下几个方面:
(1)水分:多数种类进入炎夏季节,即使气温很高,也不能随便浇水。夏天天气炎热,水分散失较快,需要充分浇水。但在烈日下浇水容易损伤植株根系,所以,浇水时间应选择在清晨日出前或傍晚日落后。少数夏季进入半休眠或休眠状态的仙人掌类植物,更应控制浇水量,以免因过量浇水而引起根系腐烂、植株死亡。
(2)光照:仙人掌类花卉大多都喜欢在充足的阳光照射下生长,但少数种类在炎热的夏天又具有半休眠或休眠的习性,所以在炎热干燥的夏天,应减少强光直射,避免植株被强光灼伤或因其体内水分过量散失而致死。因此,夏季的正午要给予适当遮荫。
(3)通气:栽培仙人掌类植物的场所需要通风,因为新鲜空气能促进植株的新陈代谢,增强对养分的吸收能力,促使其生长繁茂。同时盛夏炎热的天气,若通风不良,易造成病虫害的发生。
(4)湿度:多数仙人掌类植物适应于30%-60%的相对空气湿度。但夏天气温高,空气干燥,应适当增加栽培场所的空气湿度。可经常用喷雾器向栽培场所喷水,或在栽培场所里放置些盛装清水的盆、钵,以增加空气湿度。
(5)温度:大多数仙人掌类植物的生长适温为15-30℃。夏天持续的高温会使植株生长变得缓慢,甚至停滞或处于半休眠、休眠状态。所以,应做好适当遮荫,加强通风设施,合理增加空气湿度,才可起到一定的降温效果,以利于仙人掌类植物的安全度夏。
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