通过盆栽试验研究了不同连作年限花生根际及非根际土壤微生物区系变化。结果表明,随着连作年限的增加,花生根际及非根际土壤中的细菌、放线菌数量明显减少,真菌数量明显增加。4个处理根际土壤中细菌数量在整个生育期的变化均为先上升后下降的单峰曲线,不同之处为连作5年在结荚期时达到峰值,其他3个处理峰值出现在花针期。连作1年花生根际土壤中真菌数量动态变化曲线为先上升后下降再上升,峰值出现在花针期。其他3个处理均为先上升后下降的单峰曲线。CK和连作3年根际土壤中放线菌在整个生育期的菌量动态变化曲线较为一致,总体上均呈现先上升后下降的趋势,峰值均出现在结荚期,连作1年和5年的动态变化曲线较为一致,总体均呈现先上升后下降再缓慢上升的趋势,峰值均出现在花针期。 The pot experiment was conducted to study the changes of microbial flora in rhizosphere and non-rhizosphere of peanut in different continuous cropping years. The results showed that the number of bacteria and actinomycetes in rhizosphere and non-rhizosphere soil of peanut decreased significantly with the increase of continuous cropping and the number of fungi increased significantly. The changes of bacterial counts in the four rhizosphere soils during the whole growth period were firstly unimodal curve of rising and then decreasing. The difference was that the peak of the number of bacteria in the rhizosphere soil reached the peak at the podding stage for 5 years and the other three peaks appeared in the flower needle period. The dynamic curve of the number of fungi in continuous cropping of peanut rhizosphere soil first rose then decreased and then increased, the peak appeared in the flower needle. The other three treatments were the unimodal curve that first rose and then decreased. The dynamic change curves of actinomycetes in the rhizosphere soil of CK and continuous cropping three years were consistent during the whole growth period, and all showed a trend of increasing and then decreasing at first, the peak appeared in the podding period, even for 1 year and 5 years The dynamic curves are consistent, and all show a tendency of rising first then decreasing then rising slowly.