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杜鹃花用草木灰施肥好不好
更新时间: 2020-07-14 00:00:00  

杜鹃花可以施草木灰,但最好是草木灰浸出液,即草木灰泡水后施用。

因为杜鹃花喜欢酸性介质,而草木灰是碱性物质,所以泡水可以中和一些酸性。可以在现蕾期施用草木灰浸出液,开花以后花大色艳,花期长;在谢花期要追施硫酸亚铁,可避免植株出现缺铁性黄化。

忌少施氮肥,多施磷钾肥,还有含铁的肥料,最简单的方法就是在花盆内埋一些铁钉等。

关键词: 杜鹃花 草木灰 施肥 不好

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