君子兰为什么不开花?
君子兰为什么不开花,到了开花株龄的君子兰,不能正常开花,主要有以下几种原因:
①氮肥施用太多,较少施用磷钾肥,到了孕蕾开花时不孕蕾。
②夏季过强阳光照晒对孕蕾开花造成不利影响。
③冬季放置在温度太高的地方,不能得到很好地休眠。
要使君子兰年年开花,培养土的配制是关键。首先找些猪粪、骨粉、松叶、煤渣、木屑沤制后,用0.3%高锰酸钾稀释液消毒,然后取3份沤制肥,1份塘泥或菜园土混合好装盆,即可栽植君子兰。平时注意每月施浇1~2次磷酸二氢钾肥液水,在每年10月份至次年3月份,每月还要用0.1%~0.3%磷酸二氢钾喷叶片。
每年生长期淋上2~3次10~30 ppm2,4-D或萘乙酸与2,4-D的混合液,可促使开花。夏天最好摆放在早晚能见光,而中午前后避开强日光照射的阴凉处,每天除盆土浇水外,还应向附近地面洒水。到了冬季,应放置在略向阳处,冬忌干冷,盆土含水应保持在60%左右,淋水不要太多,以上就是关于君子兰为什么不开花的介绍。
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