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Recommendations for Using crop straws to Produce Organic Fertilizers in Liaoning Province

Asian Agricultural Research 2023年第1期15卷 23-25页

作者： Dan SONG Liaoning Agricultural Development Service Center Shenyang 110034China

This paper introduces in detail the current situation of crop straw resources and comprehensive utilization in Liaoning Province and the basic situation of enterprises using crop straw to produce organic *** addition,it analyzes in detail the problems existing in the production of organic fertilizers in Liaoning Province,and finally comes up with some recommendations for using crop straw to produce organic fertilizers.

关键词： crop straws Organic fertilizers Current situation Liaoning Province

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Dynamics of microbial diversity during the composting of agricultural straw

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Journal of Integrative Agriculture 2021年第5期20卷 1121-1136页

作者： CHANG Hui-qing ZHU Xiao-hui WU Jie GUO Da-yong ZHANG Lian-he FENG Yao Henan University of Science and Technology Luoyang 471023P.R.China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences/Key Laboratory of Plant Nutrition and FertilizerMinistry of Agriculture and Rural AffairsBeijing 100081P.R.China

The dynamic changes in microbial diversity during the aerobic composting of agricultural crop straw with additives were evaluated using high-throughput sequencing at four phases of composting(mesophilic,thermophilic,cooling and maturation phases).In addition,the physicochemical parameters of the composting system were determined in this *** fermentation time of the thermophilic period was prolonged with the addition of urea or urea combined with a microbial *** ratio of C/N and germination index variation indicated that the additives were favorable for composting,because the additives directly changed the physicochemical properties of the compost and had effects on the diversity and abundance of bacteria and *** abundance of operational taxonomic units(OTUs),diversity index(Shannon)and richness index(Chao1)of fungi and bacteria were found to significantly increase when urea+microbial agents were added to straw in the thermophilic *** relative abundance of the predominant bacteria and fungi at the phylum and genus levels differed during different composting *** abundance of the phyla Firmicutes and Proteobacteria declined in the order of treatments SNW>SN>S(S is straw only compost;SN is straw+5 kg t^(–1) urea compost;and SNW is straw+5 kg t^(–1) urea+1 kg t^(–1) microbial agent compost)in the thermophilic *** abundance of the genera Staphylococcus,Bacillus and Thermobifida followed the same order in the mesophilic *** accounted for more than 92%of the total fungal *** the progression of the composting process,the abundance of Ascomycota decreased *** abundance of Ascomycota followed the order of S>SN>SNW during the thermophilic *** abundance of Aspergillus accounted for 4–59%of the total abundance of fungi and increased during the first two sampling *** abundance followed the order of SNW>SN>***,principal component analysis(PCA)revealed that the community compositi

关键词： crop straws microbial diversity community composition dynamic characteristics high-throughput sequencing

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