Continuous cropping of Fenghua taro leads to poor quality. In this research, two pollution tolerant algae, Spirulina platensis and Chlorella vulgaris, were selected as conditioners for continuous cropping obstacles of taro production. The composition, abundance, and biodiversity of the bacteria and fungi communities in soil rhizosphere of continuous cropping were compared to non-continuous cropping, and studied in-depth. These results showed that the growth of taro during continuous cropping, when irrigated with Chlorella vulgaris and Spirulina platensis, was significantly better than the control group without algal cell irrigation. Accordingly, the plant height, leaf length, leaf area, moisture, carbohydrate, and protein in continuous cropping were 128 cm, 69 cm, 56 cm, 72 g/100 g, 10.8 g/100 g and 2.4 g/100 g, respectively, when watered with Chlorella vulgaris. Furthermore, compared with continuous cropping, the abundance of plant pathogens in the taro rhizosphere, fertilized with Spirulina platensis, were significantly reduced, while the corresponding abundance of soil beneficial bacteria was significantly increased. Specifically, the abundance of beneficial bacteria Ceratobasidium and Pulveroboletus increased, and the pathogens such as Curvularia, Erysiphe, and Clonostachys decreased, during continuous cropping when irrigated with Spirulina platensis. Live microalgae, after wastewater treatment, could be used as potential conditioners to avoid obstacles during continuous cropping of taro production.

奉化芋头连作导致品质不佳。本研究选择了两种耐污染藻类Spirulina platensis和Chlorella vulgaris作为芋头生产连作障碍的调理剂。对连作与非连作土壤根际细菌和真菌群落的组成、丰度和生物多样性进行了深入研究。这些结果表明，在连作过程中，用小球藻和扁平螺旋藻灌溉时，芋头的生长，显着优于无藻细胞灌洗的对照组。相应地，连作的株高、叶长、叶面积、水分、碳水化合物和蛋白质分别为128 cm、69 cm、56 cm、72 g/100 g、10.8 g/100 g和2.4 g/100 g ，当用小球藻浇水时。此外，与连作相比，用扁平螺旋藻施肥的芋头根际植物病原菌丰度显着降低，而相应的土壤有益菌丰度显着增加。具体而言，有益菌Ceratobasidium和Pulveroboletus的丰度增加，而弯曲菌等病原体、连作期间，用白螺旋藻灌溉后，白粉菌和花穗减少。废水处理后的活微藻可用作潜在的调节剂，以避免芋头连作生产过程中的障碍。