摘要
将10%、20%、30%和40%的煤气化渣分别与15%的平菇菌糠混合施入煤矿区污染土壤中,在土壤未种植状态下,每隔6 d测定土壤中微生物类群数量变化。结果表明,土壤中细菌、放线菌、真菌、芽孢杆菌、氨化细菌和纤维素分解菌的数量均随时间的延长呈上升趋势;相同时间内,30%煤气化渣配施15%平菇菌糠处理下的土壤中各种微生物类群的数量均处于最高,与同时段下的其他处理相比,除第7天与40%煤气化渣配施15%平菇菌糠处理下的细菌数量无显著差异外,其他均达显著水平(P<0.05)。综上所述,30%煤气化渣配施15%平菇菌糠能显著增加土壤微生物数量。
The 10%,20%,30%and 40%gasification residues were mixed with 15%flat mushroom bran and applied to the contaminated soil in the coal mine area,and the changes in the number of microbial taxa in the soil were measured every 6 d in the unplanted state of the soil.The results showed that the numbers of bacteria,actinomycetes,fungi,Bacillus,ammonia-forming bacteria and cellulolytic bacteria in the soil showed an increasing trend with time;the numbers of various microbial taxa in the soil under the treatment of 30%gasification residue with 15%mushroom bran were at the highest in the same time Compared with other treatments under the same period,there was a significant difference(P<0.05)in bacteria quantity,except for the treatment of 40%gasification residue with 15%mushroom bran on the 7th day.In conclusion,30%gasification residue with 15%mushroom bran significantly increased the number of soil microorganisms.
作者
艾国
王劲超
邓仲勋
尚瑞勇
陈花
AI Guo;WANG Jin-chao;DENG Zhong-xun;SHANG Rui-yong;CHEN Hua(Shenmu Vocational and Technical College,Shenmu 719300,Shaanxi,China;College of Life Sciences,Yulin University,Yulin 719000,Shaanxi,China)
出处
《湖北农业科学》
2022年第22期14-18,共5页
Hubei Agricultural Sciences
基金
陕西省榆林市科技局产学研合作项目(CXY-2020-018)
陕西省教育厅重点科研计划项目(22JS046)。
关键词
煤气化渣
平菇菌糠
微生物类群数量
土壤改良
gasification residue
flat mushroom bran
the number of microbial taxa
soil improvement
