如何促使球根海棠多开花?
家庭种养球根海棠,采用扦插法繁殖。6~7月,剪取生长健壮带顶芽的茎端,长度约10厘米,摘去下部的叶片,稍加摊晾后插入装有素沙的大花盆中,用水壶喷水后,覆塑料薄膜保湿;然后将其搁放于凉爽且有较好散射光的场所;
维持20~25℃左右的适宜温度,每天打开塑料薄膜1次,给予通风透气,并补充喷雾,20天后即可愈合生根,30天后便能分栽上盆。为了促使其几个茎端同时开花,可将整个植株中的最为旺盛的数个梢端掐去,一经打破顶端优势,在其下部即可萌发出较多的侧梢;待其创口收干后再给予喷水和浇施薄肥。
因为它是长日照花卉,每天应给予较长时间的散射光,并应经常给盆株松土,多喷水,少浇水,既要避免盆土过于,又要防止过湿,同时向植株周围喷水,借以增湿降温。生长季节每隔10天浇施或喷施一次0.2%的磷酸二氢钾与0.1%的尿素混合液,可促成植株叶片增绿,花量增多,花色更艳。
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