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近年来,郁金香、仙客来、非洲菊、百合等花卉都有连作障碍的报道,如非洲菊连作多年后,其产量、观赏品质以及土壤理化性质都产生明显的负面变化,如花径变短、病虫害严重以及农药和化肥施用量逐年上升等,导致非洲菊生产成本增加和切花产量下降。郁金香连作后会出现种球退化、植株矮化、叶片受病腐烂、花朵变形枯萎以及连作土壤病菌繁殖增快等现象。
In recent years, tulips, cyclamen, gerbera, lilies and other flowers have continuous cropping obstacles reported, such as Gerbera continuous cropping years, the yield, ornamental quality and soil physical and chemical properties have significant negative changes, such as flower diameter becomes shorter, Pests and diseases are serious and pesticides and chemical fertilizers increased year by year, resulting in increased production costs of gerbera and cut flowers decreased. Tulip continuous cropping there will be degradation of bulbs, dwarf plants, diseased leaf rot, flower deformation and wilt even as the phenomenon of faster propagation of soil bacteria and so on.