阳台盆花春季的主要管理措施?
春季气温回升,盆花经过冬天的室内养护,大多要逐渐移出室外。而早春乍暖乍寒,为了使花卉适应两种环境的变化,我们要做好春季花卉的养护和管理,为此,主要注意以下几点:
(1)出室:冬季经过室内养护,加上早春天气多变,花卉较脆弱,出室的ft寸问不宜过早,北方地区宜在清明至立夏之间。否则易受风吹和晚霜冻害。出室前10天左右,可采用开窗通风的方法,使之逐渐适应外界气温;或上午出室,下午人室;宜阴天出室,风大不宜出室。
(2)换盆换土:盆花是在花盆内有限生长,养分常供应不足,因此要换盆换土。换盆的时问,宿根和木本花卉宜在休眠期和早春新芽萌动之前;早春开花者宜于花后换盆。换盆用土,大多用含较丰富腐殖质、pH值5.5~7.0的中性偏酸、肥沃和排水透气性良好的沙质壤土。一些花卉可以于换盆时进行分株,如君子兰一类。
(3)供给肥水:春季是各种花卉生长和发育的季节,水肥供应不足,往往会导致花卉的枯萎甚至死掉。应注意叶面上喷水,保持湿润,浇水要适量,见湿见干。施肥应根据不同种类适时施肥。如君子兰、美人蕉、米兰、茉莉等,应隔10天追施一次液肥。
(4)合理修剪:春季也是适合花卉修剪的最佳季节,如一品红的老枝干应在早春进行修剪,每一枝干下部只留2~3个芽,上部枝条全部剪去以促进新枝的萌发。
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