江苏农业学报2025，Vol.41Issue(4)：692-701,10.DOI:10.3969/j.issn.1000-4440.2025.04.008
炭基肥对辣椒生长及根际土壤细菌群落结构的影响
Effects of biochar-based fertilizer on pepper growth and rhizosphere soil bacterial community structure
摘要
Abstract
In order to clarify the effects of biochar-based fertilizer on pepper growth and development,nutrient ab-sorption,soil physical and chemical properties and microbial community structure,a pot experiment was conducted in this study,with treatments including no fertilization control(CK)and compound fertilizer(HF)with N,P2O5 and K2O con-tents of 15％,15％ and 15％,biochar-based fertilizer 1(TF1)with N,P2O5 and K2O contents of 15％,15％ and 15％,biochar-based fertilizer 2(TF2)with N,P2O5 and K2O contents of 15％,10％ and 10％,biochar-based fertilizer 3(TF3)with N,P2O5 and K2O contents of 10％,10％ and 10％,respectively.The effects of biochar-based fertilizer prepared by different ratios of biochar and chemical fertil-izer on the growth of pepper and the quality of rhizosphere soil were analyzed.The results showed that compared with HF treatment,the stem diameter,root dry matter weight per plant,dry fruit weight per plant and fruit dry matter distribution ratio of pepper treated with TF1-TF3 treatments increased.The soil total nitrogen contents of TF1-TF3 treat-ments were significantly higher than those of HF treatment and CK.Compared with HF treatment,the absorptive capacity and distribution proportion of nutrient elements such as nitrogen,phosphorus and potassium in fruits treated with TF1-TF3 showed increasing trends.The Richness index,Chao1 index,Ace index and Shannon index of pepper rhizosphere soil bac-teria under TF1-TF3 treatments were higher than those under HF treatment.The dominant phyla of soil bacterial community in different fertilization treatments were Acidobacteria,Proteobacteria and Gemmatimonadetes,and the cumulative relative abundances were 74.69％-82.46％.The relative abundances of Acidobacteria in TF1,TF3 and HF treatments were signifi-cantly lower than that in CK.The relative abundances of Myxomycota treated with TF1-TF3 and HF were significantly lower than that of CK.The relative abundance of Methylomirabilota bacteria in HF treatment was higher than those in CK and TF1-TF3 treatments.The relative abundances of Gemmatimonadetes in TF1-TF3 treatment were significantly higher than those in HF treatment and CK.In summary,the application of biochar-based fertilizer can not only enhance the absorption capacity of pepper plants to nutrients,improve the distribution ratio of nutrients in fruits,but can also optimize soil physical and chemical properties,improve soil microbial diversity,and then increase pepper fruit yield.关键词
炭基肥/养分吸收与分配/土壤理化性质/土壤细菌群落结构Key words
biochar-based fertilizer/nutrient absorption and partition/soil physicochemical properties/soil bacte-rial community structure分类
农业科技引用本文复制引用
王薇薇,沈峰,梅燚,吴永成,郑佳秋,张丽娜,冯汝超,祖艳侠,刘哲..炭基肥对辣椒生长及根际土壤细菌群落结构的影响[J].江苏农业学报,2025,41(4):692-701,10.基金项目
江苏省农业科技自主创新基金项目[CX(23)3024] （23）
盐城市(农业)重点研发计划项目(YCBN202413) （农业）
