典型文献
Effects of different fertilization practices on anammox activity,abundance,and community compositions in a paddy soil
文献摘要:
The return of crop residue and green manure into agricultural soil is known to be important agricultural management strategies,yet how they affect the anammox process remains poorly characterized.A field experiment containing four treatments:chemical fertilizer(F),F plus rice straw(FS),FS plus green manure(FSM),FSM with integrated management(FSMM),was performed to examine the effects of incorporation of rice straw and green manure residues on anammox.The results showed that the anammox activities in FS and FSM treatments(0.65 and 0.80 nmol N g-1 soil h-1,respectively)were significantly lower than those in F and FSMM treatments(1.60 and 1.28 nmol Ng-1 soil h-1,respectively).Anammox contributed 4.07%-4.95%of total N loss in soil incorporated with residues,lower than soil treated with chemical fertilizer only(9.13%),the remaining being due to denitrification.However,the abundance of the hzsB gene(the hydrazine synthase β-subunit gene)in FS and FSM treatments(1.13×106 and 1.18×106 copies g-1 soil)were significantly higher than soil using chemical fertilizer only(7.49×105 copies g-1 soil)while showed no significant difference with FSMM treatment(8.81×105 copies g-1 soil).Illumina sequencing indicated that Brocadia was the dominant anammox genus,following by Scalindua and Kuenenia.Anammox bacterial diversity was altered after 4-year incorporation of rice straw and green manure,as shown by α-diversity indices.We concluded that rice straw and green manure incorporated with mineral fertilizer reduce N removal from paddy soil in terms of anammox in spite of stimulating anammox bacterial growth.
文献关键词:
中图分类号:
作者姓名:
Geng Sun;Mei Sun;Zunchang Luo;Chao Li;Xiaoping Xiao;Xiaojing Li;Junjie Zhong;Hua Wang;San'an Nie
作者机构:
College of Resources and Environment,Hunan Agricultural University,Changsha 410125,China;Hunan Soil and Fertilizer Institute,Changsha 410125,China;Key Laboratory of Urban Environment and Health,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China
文献出处:
引用格式:
[1]Geng Sun;Mei Sun;Zunchang Luo;Chao Li;Xiaoping Xiao;Xiaojing Li;Junjie Zhong;Hua Wang;San'an Nie-.Effects of different fertilization practices on anammox activity,abundance,and community compositions in a paddy soil)[J].土壤生态学快报(英文),2022(03):254-263
A类:
FSMM,hzsB,Scalindua
B类:
Effects,different,fertilization,practices,anammox,activity,abundance,community,compositions,paddy,soil,return,crop,green,manure,into,agricultural,is,known,important,management,strategies,yet,they,affect,process,remains,poorly,characterized,field,experiment,containing,four,treatments,chemical,fertilizer,plus,rice,straw,integrated,was,performed,examine,effects,incorporation,residues,results,showed,that,activities,nmol,respectively,were,significantly,lower,than,those,Ng,Anammox,contributed,total,loss,incorporated,treated,only,remaining,being,denitrification,However,gene,hydrazine,synthase,subunit,copies,higher,using,while,difference,Illumina,sequencing,indicated,Brocadia,dominant,genus,following,by,Kuenenia,bacterial,diversity,altered,after,year,shown,indices,We,concluded,mineral,reduce,removal,from,terms,spite,stimulating,growth
AB值:
0.459053
相似文献
机标中图分类号,由域田数据科技根据网络公开资料自动分析生成,仅供学习研究参考。