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如何控制一品红花期?

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正确答案:

(1)一品红为短日照植物,自然花期12月至翌年2月份。

(2)一天遮光14h以上(包括自然黑夜)可提前开花。

(3)一天加光12h以上结合加温可延迟开花。

答案解析:

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