Data from: Soil suppressiveness against Pythium ultimum and Rhizoctonia solani in two land management systems and eleven soil health treatments

This project aimed to assess the effect of 11 soil health treatments and 2 landmanagement systems of a long-term field experiment called "Soil Health Experiment" on soil disease suppressiveness against Pythium ultimum and Rhizoctonia solani.Disease suppressiveness was assessed in 2018 and 2019 in bioassays using field soil in which garden cress and sugar beet seedlings were grown and inoculated with P. ultimum and R. solani respectively.In addition, soil fungi and bacteria were quantified ausing qPCR. Fungal and bacterial community composition were assessedby Illumina amplicons sequencing in 2019.HWC was measured in 2019 as an indicator of soil carbon in the microbial biomass.

本研究旨在评估名为"土壤健康试验（Soil Health Experiment）"的长期田间试验中，11种土壤健康处理措施及2种土地管理系统对土壤抵御终极腐霉菌（Pythium ultimum）和立枯丝核菌（Rhizoctonia solani）的病害抑制能力的影响。研究分别于2018年和2019年开展生物测定：以田间采集的土壤为基质，分别种植家独行菜（garden cress）与甜菜（sugar beet）幼苗，并分别接种终极腐霉菌与立枯丝核菌，以此评价土壤病害抑制能力。此外，本研究通过实时荧光定量PCR（qPCR）对土壤真菌与细菌的丰度进行定量检测。2019年，采用Illumina扩增子测序技术对真菌与细菌的群落组成进行分析。同年，研究人员还测定了热水提取碳（Hot Water Extractable Carbon, HWC），将其作为微生物生物量中土壤碳的指示指标。