Sludge compost can promote greatly the growth of some flowers asscarlet sage (salvia splendens)and French marigold(Tagetes patula),and can preserve the effect longer than chemical fertilizer.
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- 污泥堆肥可明显促进某些花卉(孔雀草、金盏菊和一串红)生长,并能保持长久的后效,这一点是化学肥料无法相比的。