This study investigated the effects of six crop rotation combinations on the soil quality of old apple orchard and seedling growth of Malus hupehensis Rehd. (apple rootstock) under pot conditions. The inhibitory effects of crops such as Allium fistulosum, Brassica juncea, and Triticum aestivum on four species of Fusarium were observed and compared in six treatments. These were continuous cropping (CK), fumigation with the methyl bromide (FM), rotating A. fistulosum only (R1), rotating A. fistulosum and T. aestivum (R2), rotating A. fistulosum, B. juncea, and T. aestivum (R3), and fallow (FC) in a year. The results showed that the biomass of Malus hupehensis Rehd. seedlings increased significantly. The root length increased and the root architecture was optimized. The respiration rate of the root system was increased by about 1 time after rotation. The treatments of R1, R2, R3, and FC increased bacterial count by 232.17%, 96.04%, 316.21%, and 60.02%, respectively. However, the fungi were reduced in varying degrees and bacteria/fungi ratio was increased by 5–10 times. The enzyme activities, pH, and organic matter were increased, but soil bulk density was decreased. Phenolic acids such as phloridzin was decreased significantly. The copy number of four Fusarium species declined by 85.59%, 74.94%, 69.68%, and 54.41% after rotating three different crops (R3 treatment). The root volatiles of three plants inhibited mycelial growth and spore germination of four Fusarium species.

本研究调查了六种轮作组合对老苹果园土壤质量和湖北苹果幼苗生长的影响。（苹果砧木）在盆栽条件下。作物如的抑制作用大葱，雪里蕻，和小麦上四种的镰孢属中观察到，在6个处理相比。这些是连作 (CK)、溴甲烷熏蒸 (FM)、仅旋转A. fistulosum (R1)、旋转A. fistulosum和T. aestivum (R2)、旋转A. fistulosum、B. juncea和T.小麦(R3) 和休耕 (FC) 一年。结果表明，湖北海棠的生物量。苗木显着增加。根长度增加，根结构得到优化。轮作后根系呼吸速率增加约1倍。R1、R2、R3和FC处理分别使细菌数增加了232.17%、96.04%、316.21%和60.02%。然而，真菌在不同程度上减少，细菌/真菌比增加了5-10倍。酶活性、pH 值和有机质增加，但土壤容重降低。根皮苷等酚酸显着减少。四镰刀菌拷贝数轮作三种不同作物（R3处理）后，物种下降了85.59%、74.94%、69.68%和54.41%。三种植物的根挥发物抑制了四种镰刀菌的菌丝生长和孢子萌发。