中国蔬菜Issue(2)：131-139,9.DOI:10.19928/j.cnki.1000-6346.2024.4022
多节点生物防治山药茎基腐病施肥方案探究
Study on Fertilization Scheme of Multi-node Biological Control of Base Rot in Chinese Yam
摘要
Abstract
To explore a high-yield and high-quality fertilization scheme involving multiple stages of biological control for yam stem base rot disease,Taigu Chinese yams from Shanxi Province were used as experimental materials.A single application of chemical fertilizer served as the blank control.The effects of different dosages of bio-organic fertilizer combined with chemical fertilizers,as well as root dipping and root drenching with liquid microbial agents,on Chinese yam emergence rate,growth indicators,stem base rot disease index,yield,quality,economic benefits,and soil microbial richness were studied.The results showed that the emergence rate in the T2 treatment increased by 0.26 percentage points compared to the control(CK).The contents of Chinese yam polysaccharides,adhesiveness,and protein increased by 0.24 percentage points,14.81%,and 2.39 percentage points over CK,respectively.The disease index of stem base rot was the lowest in T2,with a control efficacy of 46.42%.The Chinese yam yield,the output value and the profit representing increases of 38.68%,42.53%,and 55.16%over CK,respectively.The relative abundance of Fusarium spp.,the pathogenic fungi causing stem base rot,was the lowest in the T2 group,decreasing by 3.98 percentage points compared to CK.Therefore,considering multiple factors,soaking seed yams in liquid microbial agents before transplanting,applying compound fertilizer and 30 000 kg·hm-2 of bio-organic fertilizer as base fertilizer,and alternately applying compound fertilizer and liquid microbial agents during the topdressing period constitute an effective high-yield and high-quality fertilization scheme for controlling yam stem base rot disease.关键词
山药/生物有机肥/微生物菌剂/茎基腐病/生物防治Key words
Chinese yam/bio-organic fertilizer/microbial inoculant/base rot/biological control引用本文复制引用
王晓民,赵树楠,宗佳蓓,张英杰,刘燕燕,武才女,张杰..多节点生物防治山药茎基腐病施肥方案探究[J].中国蔬菜,2025,(2):131-139,9.基金项目
国家现代农业产业技术体系资助项目(CARS-21),山西师范大学横向项目(0110/020520230005) （CARS-21）
